CAN COMMUNICATION SYSTEM(w/ Central Gateway ECU) DTC COMBINATION TABLE


  1. HOW TO INTERPRET COMMUNICATION DTCS (DTCS THAT START WITH U)


    1. If a CAN communication error cannot be reproduced, determine the suspected malfunctioning part using the DTCs stored in ECUs that are connected to the CAN buses by following the procedure below.

      Tech Tips

      Communication DTCs (DTCs that start with U) indicate a communication error between the ECU that stores the DTC and the ECU that is indicated by the DTC.


      1. If multiple ECUs store a communication DTC for a particular ECU, a communication stop of the ECU is suspected.

        A005AM5E11
        Text in Illustration
        *a Items to be Checked - -

        Note


        • This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.

        • Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the GTS may differ depending on the ECU that stores the DTC. (Regarding output DTCs, refer to step 6 and the DTC chart for each ECU.)

        Tech Tips

        As multiple ECUs indicate a communication stop with the main body ECU, the possibility of a communication stop of the main body ECU is high.

      2. If almost all of the communication DTCs of an ECU are stored, a communication stop of the ECU is suspected.

        A005AR6E08
        Text in Illustration
        *a Items to be Checked - -

        Note

        This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.

        Tech Tips


        • If almost all of the DTCs of the main body ECU are stored, the possibility of a communication stop of the main body ECU is high.

        • When a CAN communication error occurs, many DTCs are output. DTCs other than communication error DTCs (such as DTCs that start with C or B) and communication DTCs for the ABS system are important DTCs, however it may be easier to determine the malfunctioning part by examining the overall situation without considering these DTCs.

    2. To help determine the part of the sub bus that has a communication error, prioritize the communication stop DTCs stored in the gateway function equipped ECU.

      A005E1PE14
      Text in Illustration
      *a Items to be Checked *b ECM
      *c Gateway Function Equipped ECU *d Location of Malfunction
      *e Bus 2 *f Non-bus 2

      Note

      This DTC table is from another model, and is only used here to show the ECUs connected to both a bus 2 and a non-bus 2. It shows DTCs output when there is an open in the main bus lines for the ECM on the non-bus 2. This table does not show DTCs applicable to this vehicle.

      Tech Tips


      • As gateway function equipped ECUs (non-bus 2 monitor ECU) monitor signals from all ECUs that are connected to non-bus 2, gateway function equipped ECUs can detect ECUs with a communication stop more accurately.

      • When there is a communication stop for the gateway function equipped ECU (gateway), communication with ECUs connected to other buses such as the bus 2 stops. Therefore, communication DTCs for ECUs connected to other buses are also stored.

    3. When any of the following malfunctions occurs, many DTCs are likely to be output from many ECUs. Because of this, it may be difficult to determine the probable malfunctioning part.


      • Short between CAN lines (CANH and CANL)

      • Short between a CAN line (CANH or CANL) and ground

      • Short between a CAN line (CANH or CANL) and +B

      • Open in a CAN branch line (CANH or CANL) of an ECU or sensor

      • Open in a CAN main bus line (CANH or CANL) between 2 ECUs that have a terminating resistor

  2. DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 2, PAST COMMUNICATION ERROR)


    1. Regarding a past communication error of an ECU and sensor connected to the bus 2 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

      Tech Tips


      • Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.

      • Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

      • *1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

      • *2: DTC U0073 may be stored when communication is lost.

      • If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 10 to 18) first Click here.

      • If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

      • If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

      for LHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Center Airbag Sensor Communication Stop Mode Click here

      Air Conditioning Amplifier Communication Stop Mode Click here

      Main Body ECU Communication Stop Mode Click here

      Central Gateway ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 - ○ - -
      U0131 - ○ - -
      U0142 - ○ ○ -
      U0155 - ○ - -
      U0293 - ○ - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - ○ -
      U0101 - - ○ -
      U0120 - - ○ -
      U0129 - - ○ -
      U0151 ○ - ○ -
      U0155 - - ○ -
      U0164 - ○ ○ -
      U0293 - - ○ -
      U0327 - - ○ -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - - -
      U0123 ○ - - -
      U0124 ○ - - -
      U0126 - - - -
      U0293 - - - -
      Bus 2 Power Steering ECU Assembly U0129 - - - -
      U0293 - - - -
      U1105 - - ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0151 ○ - - -
      U0164 - ○ - -
      U1107 - - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - - -
      ECM U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - - -
      U0142 - - ○ -
      U0155 - - - -
      U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0293 - - - -
      Combination Meter Sub-assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - ○ -
      U0151 ○ - - -
      U1104 - - - ○
      Transmission Control ECU Assembly U0146 - - ○ -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Radio and Display Receiver Assembly*2 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0155 - - - -
      U0293 - - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Bus 5 Driving Support ECU Assembly U0122 - - - ○
      U0123 ○ - - ○
      U0126 - - - ○
      U0142 - - ○ ○
      U0293 - - - ○
      Parking Assist ECU U0100 - - - ○
      U0126 - - - ○
      U0129 - - - ○
      U0131 - - - ○
      U0140 - - ○ ○
      U0155 - - - ○
      U0293 - - - ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - - ○
      for LHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Skid Control ECU Communication Stop Mode Click here

      Hybrid Vehicle Control ECU Communication Stop Mode Click here

      Power Steering ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - ○
      U0142 - - -
      U0155 - - -
      U0293 - ○ -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - ○ -
      U0120 - - -
      U0129 ○ - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - ○ -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ - -
      U0123 ○ - -
      U0124 ○ - -
      U0126 ○ - -
      U0293 ○ ○ -
      Bus 2 Power Steering ECU Assembly U0129 ○ - ○
      U0293 - ○ ○
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - ○ -
      U0129 ○ ○ -
      U0140 - ○ -
      U0151 - ○ -
      U0164 - ○ -
      U1107 - ○ -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 ○ ○ -
      ECM U0293 ○ ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 ○ - -
      U0140 - - -
      U0293 - ○ -
      Combination Meter Sub-assembly U0100 - ○ -
      U0129 ○ - -
      U0131 - - ○
      U0142 - - -
      U0151 - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 ○ - -
      U0140 - - -
      U0155 - - -
      U0293 - ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Bus 5 Driving Support ECU Assembly U0122 ○ - -
      U0123 - - -
      U0126 - - -
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - ○ -
      U0126 - - -
      U0129 ○ - -
      U0131 - - ○
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      for LHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Certification ECU Communication Stop Mode Click here

      Transmission Control ECU Communication Stop Mode Click here

      Steering Angle Sensor Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 ○ - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - - -
      U0327 ○ - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ - -
      U0123 - - -
      U0124 - - -
      U0126 - - ○
      U0293 - - -
      Bus 2 Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 ○ - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ - -
      U0142 ○ - -
      U0155 ○ - -
      U0293 ○ - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 ○ ○ -
      U0129 ○ - -
      U0140 ○ - -
      U0293 ○ - -
      Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - ○ -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Bus 5 Driving Support ECU Assembly U0122 - - -
      U0123 - - -
      U0126 - - ○
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - - -
      U0126 - - ○
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      for LHD
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC

      ECM Communication Stop Mode Click here

      		No. 1 CAN Junction Connector to No. 2 CAN Junction Connector No. 2 CAN Junction Connector to No. 3 CAN Junction Connector

      Combination Meter ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 ○ ○ - -
      U0131 - - - -
      U0142 - ○ - -
      U0155 - - ○ ○
      U0293 - - ○ -
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ - - -
      U0101 - ○ ○ -
      U0120 - ○ - -
      U0129 - - - -
      U0151 - ○ - -
      U0155 - ○ ○ ○
      U0164 - ○ - -
      U0293 - ○ ○ -
      U0327 - ○ - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - ○ - -
      U0123 - ○ - -
      U0124 - ○ - -
      U0126 - ○ - -
      U0293 - ○ ○ -
      Bus 2 Power Steering ECU Assembly U0129 - ○ - -
      U0293 - - ○ -
      U1105 - - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 ○ ○ ○ -
      U0129 - ○ ○ -
      U0140 - ○ ○ -
      U0151 - ○ - -
      U0164 - ○ - -
      U1107 - ○ - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - ○ ○ -
      ECM U0293 - ○ ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ ○ - -
      U0142 - ○ - -
      U0155 - - ○ ○
      U0293 - - ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - ○ -
      U0129 - ○ - -
      U0140 - ○ - -
      U0293 - - ○ -
      Combination Meter Sub-assembly U0100 - - - ○
      U0129 - ○ ○ ○
      U0131 - - ○ ○
      U0142 - ○ ○ ○
      U0151 - - ○ ○
      U1104 - - ○ ○
      Transmission Control ECU Assembly U0146 - - - ○
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Radio and Display Receiver Assembly*2 U0100 ○ ○ - -
      U0129 - ○ - -
      U0140 - ○ - -
      U0155 - - ○ ○
      U0293 - - ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Bus 5 Driving Support ECU Assembly U0122 - ○ - -
      U0123 - - - -
      U0126 - - - -
      U0142 - ○ - -
      U0293 - - ○ -
      Parking Assist ECU U0100 - - ○ -
      U0126 - - - -
      U0129 - ○ - -
      U0131 - - - -
      U0140 - ○ - -
      U0155 - - ○ ○
      U0293 - - ○ -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - ○ -
      for LHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0120 ○ ○ ○
      U0129 ○ ○ ○
      U0151 ○ ○ ○
      U0155 ○ ○ ○
      U0164 ○ ○ ○
      U0293 ○ ○ ○
      U0327 ○ ○ ○
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ ○ ○
      U0123 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0293 ○ ○ ○
      Bus 2 Power Steering ECU Assembly U0129 ○ ○ ○
      U0293 ○ ○ ○
      U1105 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0151 ○ ○ ○
      U0164 ○ ○ ○
      U1107 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 ○ ○ ○
      ECM U0293 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0293 ○ ○ ○
      Combination Meter Sub-assembly U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0151 ○ ○ ○
      U1104 ○ ○ ○
      Transmission Control ECU Assembly U0146 ○ ○ ○
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Bus 5 Driving Support ECU Assembly U0122 ○ ○ ○
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0142 ○ ○ ○
      U0293 - - -
      Parking Assist ECU U0100 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 ○ ○ ○
      for RHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Center Airbag Sensor Communication Stop Mode Click here

      Air Conditioning Amplifier Communication Stop Mode Click here

      Main Body ECU Communication Stop Mode Click here

      Central Gateway ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 - ○ - -
      U0131 - ○ - -
      U0142 - ○ ○ -
      U0155 - ○ - -
      U0293 - ○ - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - ○ -
      U0101 - - ○ -
      U0120 - - ○ -
      U0129 - - ○ -
      U0151 ○ - ○ -
      U0155 - - ○ -
      U0164 - ○ ○ -
      U023A - - ○ ○
      U0293 - - ○ -
      U0327 - - ○ -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - - -
      U0123 ○ - - -
      U0124 ○ - - -
      U0126 - - - -
      U0293 - - - -
      Bus 2 Power Steering ECU Assembly U0129 - - - -
      U0293 - - - -
      U1105 - - ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0151 ○ - - -
      U0164 - ○ - -
      U1107 - - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - - -
      ECM U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - - -
      U0142 - - ○ -
      U0155 - - - -
      U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0293 - - - -
      Combination Meter Sub-assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - ○ -
      U0151 ○ - - -
      U0163 - - - -
      U023A - - - -
      U1104 - - - ○
      Transmission Control ECU Assembly U0146 - - ○ -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Navigation Receiver Assembly*2 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0155 - - - -
      U0293 - - ○ -
      Bus 3 Radio and Display Receiver Assembly*2 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0155 - - - -
      U0293 - - ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Driving Support ECU Assembly U0122 - - - -
      U0123 ○ - - -
      U0126 - - - -
      U0142 - - ○ -
      U0293 - - - -
      Parking Assist ECU U0100 - - - ○
      U0126 - - - -
      U0129 - - - -
      U0131 - - - -
      U0140 - - ○ -
      U0155 - - - -
      U0293 - - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - - -
      Lane Departure Warning Camera U0101 - - - ○
      U0123 ○ - - -
      U0129 - - - -
      U0142 - - ○ -
      U0155 - - - -
      for RHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Skid Control ECU Communication Stop Mode Click here

      Hybrid Vehicle Control ECU Communication Stop Mode Click here

      Power Steering ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - ○
      U0142 - - -
      U0155 - - -
      U0293 - ○ -
      Bus 2 Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - ○ -
      U0120 - - -
      U0129 ○ - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U023A - - -
      U0293 - ○ -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ - -
      U0123 ○ - -
      U0124 ○ - -
      U0126 ○ - -
      U0293 ○ ○ -
      Power Steering ECU Assembly U0129 ○ - ○
      U0293 - ○ ○
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - ○ -
      U0129 ○ ○ -
      U0140 - ○ -
      U0151 - ○ -
      U0164 - ○ -
      U1107 - ○ -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 ○ ○ -
      ECM U0293 - ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - ○ -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 ○ - -
      U0140 - - -
      U0293 - ○ -
      Combination Meter Sub-assembly U0100 - ○ -
      U0129 ○ - -
      U0131 - - ○
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U023A - - -
      U1104 - - -
      Bus 2 Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Navigation Receiver Assembly*2 U0100 - - -
      U0129 ○ - -
      U0140 - - -
      U0155 - - -
      U0293 - ○ -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 ○ - -
      U0140 - - -
      U0155 - - -
      U0293 - ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 ○ - -
      U0123 - - -
      U0126 - - -
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - ○ -
      U0126 - - -
      U0129 ○ - -
      U0131 - - ○
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      Lane Departure Warning Camera U0101 - ○ -
      U0123 - - -
      U0129 ○ - -
      U0142 - - -
      U0155 - - -
      for RHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Certification ECU Communication Stop Mode Click here

      Transmission Control ECU Communication Stop Mode Click here

      Steering Angle Sensor Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 ○ - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U023A - - -
      U0293 - - -
      U0327 ○ - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ - -
      U0123 - - -
      U0124 - - -
      U0126 - - ○
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 ○ - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ - -
      U0142 ○ - -
      U0155 ○ - -
      U0293 ○ - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 ○ ○ -
      U0129 ○ - -
      U0140 ○ - -
      U0293 ○ - -
      Bus 2 Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U023A - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - ○ -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Navigation Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 - - -
      U0123 - - -
      U0126 - - ○
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - - -
      U0126 - - ○
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      Bus 5 Lane Departure Warning Camera U0101 - - -
      U0123 - - -
      U0129 - - -
      U0142 - - -
      U0155 - - -
      for RHD
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC

      ECM Communication Stop Mode Click here

      		No. 1 CAN Junction Connector to No. 2 CAN Junction Connector No. 2 CAN Junction Connector to No. 3 CAN Junction Connector

      Combination Meter ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 ○ ○ - -
      U0131 - - - -
      U0142 - ○ - -
      U0155 - - ○ ○
      U0293 - ○ - -
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○ - -
      U0101 - ○ - -
      U0120 - ○ - -
      U0129 - ○ ○ -
      U0151 - ○ - -
      U0155 - ○ ○ ○
      U0164 - ○ - -
      U023A - ○ - -
      U0293 - - - -
      U0327 - ○ - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - ○ -
      U0123 - - ○ -
      U0124 - - ○ -
      U0126 - - ○ -
      U0293 - ○ ○ -
      Power Steering ECU Assembly U0129 - - ○ -
      U0293 ○ ○ - -
      U1105 - ○ - -
      Bus 2

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 ○ - - -
      U0129 - ○ ○ -
      U0140 - - - -
      U0151 - ○ - -
      U0164 - ○ - -
      U1107 - ○ - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - ○ ○ -
      ECM U0293 ○ - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ ○ - -
      U0142 - - ○ -
      U0155 - - ○ ○
      U0293 - ○ - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - ○ - -
      U0129 - - ○ -
      U0140 - - ○ -
      U0293 - ○ - -
      Combination Meter Sub-assembly U0100 - ○ ○ ○
      U0129 - - - ○
      U0131 - - ○ ○
      U0142 - ○ ○ ○
      U0151 - - ○ ○
      U0163 - - ○ ○
      U023A - - ○ ○
      U1104 - - ○ ○
      Transmission Control ECU Assembly U0146 - - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Navigation Receiver Assembly*2 U0100 ○ ○ - -
      U0129 - - ○ -
      U0140 - ○ - -
      U0155 - - ○ ○
      U0293 - ○ - -
      Radio and Display Receiver Assembly*2 U0100 ○ ○ - -
      U0129 - - ○ -
      U0140 - ○ - -
      U0155 - - ○ ○
      U0293 - ○ - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Driving Support ECU Assembly U0122 - - ○ -
      U0123 - - - -
      U0126 - - - -
      U0142 - ○ - -
      U0293 - ○ - -
      Parking Assist ECU U0100 - ○ - -
      U0126 - - - -
      U0129 - - ○ -
      U0131 - - - -
      U0140 - ○ - -
      U0155 - - ○ ○
      U0293 - ○ - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - ○ - -
      Lane Departure Warning Camera U0101 - ○ - -
      U0123 - - - -
      U0129 - - ○ -
      U0142 - ○ - -
      U0155 - - ○ ○
      for RHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Bus 2 Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0120 ○ ○ ○
      U0129 ○ ○ ○
      U0151 ○ ○ ○
      U0155 ○ ○ ○
      U0164 ○ ○ ○
      U023A ○ ○ ○
      U0293 ○ ○ ○
      U0327 ○ ○ ○
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 ○ ○ ○
      U0123 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0293 ○ ○ ○
      Power Steering ECU Assembly U0129 ○ ○ ○
      U0293 ○ ○ ○
      U1105 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0151 ○ ○ ○
      U0164 ○ ○ ○
      U1107 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 ○ ○ ○
      ECM U0293 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0293 ○ ○ ○
      Combination Meter Sub-assembly U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0151 ○ ○ ○
      U0163 ○ ○ ○
      U023A ○ ○ ○
      U1104 ○ ○ ○
      Bus 2 Transmission Control ECU Assembly U0146 ○ ○ ○
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Navigation Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Radio and Display Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 ○ ○ ○
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0142 ○ ○ ○
      U0293 - - -
      Parking Assist ECU U0100 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      Lane Departure Warning Camera U0101 ○ ○ ○
      U0123 ○ ○ ○
      U0129 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○

  3. DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 3, PAST COMMUNICATION ERROR)


    1. Regarding a past communication error of an ECU and sensor connected to the bus 3 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

      Tech Tips


      • Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.

      • Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

      • *1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

      • *2: DTC U0073 may be stored when communication is lost.

      • If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 10 to 18) first Click here.

      • If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

      • If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

      for LHD
      - Trouble Mode
      Open in CAN branch line(s) Open in CAN main bus line(s)
      Output ECU Output DTC

      Navigation Receiver Assembly Communication Stop Mode Click here

      Central Gateway ECU Communication Stop Mode (CA3H and CA3L Terminal) Click here

      		Central Gateway ECU Communication Stop Mode (CAYH and CAYL Terminal)
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Bus 2 Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 ○ ○ -
      U0129 ○ ○ -
      U0140 ○ ○ -
      U0155 ○ ○ -
      U0293 ○ ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 - - -
      U0123 - - -
      U0126 - - -
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      for LHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Bus 2 Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - - -
      Bus 2 Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 - - -
      U0123 - - -
      U0126 - - -
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      for RHD
      - Trouble Mode
      Open in CAN branch line(s) Open in CAN main bus line(s)
      Output ECU Output DTC

      Navigation Receiver Assembly Communication Stop Mode Click here

      Audio Receiver Assembly Communication Stop Mode Click here

      Central Gateway ECU Communication Stop Mode (CA3H and CA3L Terminal) Click here

      		Central Gateway ECU Communication Stop Mode (CAYH and CAYL Terminal)
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 - - - -
      U0131 - - - -
      U0142 - - - -
      U0155 - - - -
      U0293 - - - -
      Bus 2 Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
      U0101 - - - -
      U0120 - - - -
      U0129 - - - -
      U0151 - - - -
      U0155 - - - -
      U0164 - - - -
      U023A - - - -
      U0293 - - - -
      U0327 - - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - - -
      U0123 - - - -
      U0124 - - - -
      U0126 - - - -
      U0293 - - - -
      Power Steering ECU Assembly U0129 - - - -
      U0293 - - - -
      U1105 - - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - - -
      U0129 - - - -
      U0140 - - - -
      U0151 - - - -
      U0164 - - - -
      U1107 - - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - - -
      ECM U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - - -
      U0142 - - - -
      U0155 - - - -
      U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - - -
      U0129 - - - -
      U0140 - - - -
      U0293 - - - -
      Combination Meter Sub-assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - - -
      U0151 - - - -
      U0163 ○ ○ ○ -
      U023A - - - -
      U1104 - - - -
      Bus 2 Transmission Control ECU Assembly U0146 - - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Navigation Receiver Assembly*2 U0100 ○ - ○ -
      U0129 ○ - ○ -
      U0140 ○ - ○ -
      U0155 ○ - ○ -
      U0293 ○ - ○ -
      Radio and Display Receiver Assembly*2 U0100 - ○ ○ -
      U0129 - ○ ○ -
      U0140 - ○ ○ -
      U0155 - ○ ○ -
      U0293 - ○ ○ -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Driving Support ECU Assembly U0122 - - - -
      U0123 - - - -
      U0126 - - - -
      U0142 - - - -
      U0293 - - - -
      Parking Assist ECU U0100 - - - -
      U0126 - - - -
      U0129 - - - -
      U0131 - - - -
      U0140 - - - -
      U0155 - - - -
      U0293 - - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - - -
      Lane Departure Warning Camera U0101 - - - -
      U0123 - - - -
      U0129 - - - -
      U0142 - - - -
      U0155 - - - -
      for RHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U023A - - -
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Bus 2 Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 ○ ○ ○
      U023A - - -
      U1104 - - -
      Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Navigation Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Radio and Display Receiver Assembly*2 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 - - -
      U0123 - - -
      U0126 - - -
      U0142 - - -
      U0293 - - -
      Parking Assist ECU U0100 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - - -
      Bus 5 Lane Departure Warning Camera U0101 - - -
      U0123 - - -
      U0129 - - -
      U0142 - - -
      U0155 - - -

  4. DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 5, PAST COMMUNICATION ERROR)


    1. Regarding a past communication error of an ECU and sensor connected to the bus 5 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

      Tech Tips


      • Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.

      • Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

      • *1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

      • *2: DTC U0073 may be stored when communication is lost.

      • If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 10 to 18) first Click here.

      • If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

      • If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

      for LHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Driving Support ECU Communication Stop Mode Click here

      Parking Assist ECU Communication Stop Mode Click here

      Hybrid Vehicle Control ECU Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 - ○ -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Bus 2

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U1104 ○ - -
      Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 ○ - -
      U0123 ○ - -
      U0126 ○ - -
      U0142 ○ - -
      U0293 ○ - ○
      Parking Assist ECU U0100 - ○ -
      U0126 - ○ -
      U0129 - ○ -
      U0131 - ○ -
      U0140 - ○ -
      U0155 - ○ -
      U0293 - ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 ○ - ○
      for LHD
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC

      Central Gateway ECU Communication Stop Mode (CA5H and CA5L Terminal) Click here

      		Central Gateway ECU Communication Stop Mode (CAXH and CAXL Terminal)
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Airbag ECU Assembly - - -
      Air Conditioning Amplifier Assembly U0100 - -
      U0131 - -
      U0142 - -
      U0155 - -
      U0293 - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - -
      U0101 - -
      U0120 - -
      U0129 - -
      U0151 - -
      U0155 - -
      U0164 - -
      U0293 - -
      U0327 - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - -
      U0123 - -
      U0124 - -
      U0126 - -
      U0293 - -
      Power Steering ECU Assembly U0129 - -
      U0293 - -
      U1105 ○ -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - -
      U0129 - -
      U0140 - -
      U0151 - -
      U0164 - -
      U1107 - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - -
      ECM U0293 - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - -
      U0142 - -
      U0155 - -
      U0293 - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - -
      U0129 - -
      U0140 - -
      U0293 - -
      Bus 2 Combination Meter Sub-assembly U0100 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0151 - -
      U1104 ○ -
      Transmission Control ECU Assembly U0146 - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Radio and Display Receiver Assembly*2 U0100 - -
      U0129 - -
      U0140 - -
      U0155 - -
      U0293 - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Driving Support ECU Assembly U0122 ○ -
      U0123 ○ -
      U0126 ○ -
      U0142 ○ -
      U0293 - -
      Parking Assist ECU U0100 ○ -
      U0126 ○ -
      U0129 ○ -
      U0131 ○ -
      U0140 ○ -
      U0155 ○ -
      U0293 - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - -
      for LHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Bus 2 Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U1104 ○ ○ ○
      Bus 2 Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 ○ ○ ○
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0142 ○ ○ ○
      U0293 ○ ○ ○
      Parking Assist ECU U0100 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 ○ ○ ○
      for RHD
      - Trouble Mode
      Open in CAN branch line(s)
      Output ECU Output DTC

      Driving Support ECU Communication Stop Mode Click here

      Parking Assist ECU Communication Stop Mode Click here

      Hybrid Vehicle Control ECU Communication Stop Mode Click here

      Front Camera Module Communication Stop Mode Click here

      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Airbag ECU Assembly - - - - -
      Air Conditioning Amplifier Assembly U0100 - - - -
      U0131 - - - -
      U0142 - - - -
      U0155 - - - -
      U0293 - - - -
      Bus 2 Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
      U0101 - - - -
      U0120 - - - -
      U0129 - - - -
      U0151 - - - -
      U0155 - - - -
      U0164 - - - -
      U023A - - - ○
      U0293 - - - -
      U0327 - - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - - -
      U0123 - - - -
      U0124 - - - -
      U0126 - - - -
      U0293 - - - -
      Power Steering ECU Assembly U0129 - - - -
      U0293 - - - -
      U1105 - ○ - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - - -
      U0129 - - - -
      U0140 - - - -
      U0151 - - - -
      U0164 - - - -
      U1107 - - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - - -
      ECM U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - - -
      U0142 - - - -
      U0155 - - - -
      U0293 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - - -
      U0129 - - - -
      U0140 - - - -
      U0293 - - - -
      Combination Meter Sub-assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - - -
      U0151 - - - -
      U0163 - - - -
      U023A - - - ○
      U1104 ○ - - -
      Bus 2 Transmission Control ECU Assembly U0146 - - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Navigation Receiver Assembly*2 U0100 - - - -
      U0129 - - - -
      U0140 - - - -
      U0155 - - - -
      U0293 - - - -
      Radio and Display Receiver Assembly*2 U0100 - - - -
      U0129 - - - -
      U0140 - - - -
      U0155 - - - -
      U0293 - - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - - -
      Driving Support ECU Assembly U0122 ○ - - -
      U0123 ○ - - -
      U0126 ○ - - -
      U0142 ○ - - -
      U0293 ○ - ○ -
      Parking Assist ECU U0100 - ○ - -
      U0126 - ○ - -
      U0129 - ○ - -
      U0131 - ○ - -
      U0140 - ○ - -
      U0155 - ○ - -
      U0293 - ○ ○ -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - ○ ○ -
      Lane Departure Warning Camera U0101 - - - ○
      U0123 - - - ○
      U0129 - - - ○
      U0142 - - - ○
      U0155 - - - ○
      for RHD
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC

      Central Gateway ECU Communication Stop Mode (CA5H and CA5L Terminal) Click here

      		Central Gateway ECU Communication Stop Mode (CAXH and CAXL Terminal)
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Airbag ECU Assembly - - -
      Air Conditioning Amplifier Assembly U0100 - -
      U0131 - -
      U0142 - -
      U0155 - -
      U0293 - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - -
      U0101 - -
      U0120 - -
      U0129 - -
      U0151 - -
      U0155 - -
      U0164 - -
      U023A ○ -
      U0293 - -
      U0327 - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - -
      U0123 - -
      U0124 - -
      U0126 - -
      U0293 - -
      Power Steering ECU Assembly U0129 - -
      U0293 - -
      U1105 ○ -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - -
      U0129 - -
      U0140 - -
      U0151 - -
      U0164 - -
      U1107 - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - -
      ECM U0293 - -

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - -
      U0142 - -
      U0155 - -
      U0293 - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - -
      U0129 - -
      U0140 - -
      U0293 - -
      Bus 2 Combination Meter Sub-assembly U0100 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0151 - -
      U0163 - -
      U023A ○ -
      U1104 ○ -
      Transmission Control ECU Assembly U0146 - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Navigation Receiver Assembly*2 U0100 - -
      U0129 - -
      U0140 - -
      U0155 - -
      U0293 - -
      Radio and Display Receiver Assembly*2 U0100 - -
      U0129 - -
      U0140 - -
      U0155 - -
      U0293 - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - -
      Driving Support ECU Assembly U0122 ○ -
      U0123 ○ -
      U0126 ○ -
      U0142 ○ -
      U0293 - -
      Parking Assist ECU U0100 ○ -
      U0126 ○ -
      U0129 ○ -
      U0131 ○ -
      U0140 ○ -
      U0155 ○ -
      U0293 - -

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 - -
      Bus 5 Lane Departure Warning Camera U0101 ○ -
      U0123 ○ -
      U0129 ○ -
      U0142 ○ -
      U0155 ○ -
      for RHD
      - Trouble Mode
      CAN bus lines short circuit or short to GND
      Output ECU Output DTC CANH to CANL CANH Short to Ground CANL Short to Ground
      Bus 2 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Airbag ECU Assembly - - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U023A ○ ○ ○
      U0293 - - -
      U0327 - - -
      Brake Booster with Master Cylinder Assembly (Skid Control ECU)*2 U0120 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0293 - - -
      Power Steering ECU Assembly U0129 - - -
      U0293 - - -
      U1105 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0151 - - -
      U0164 - - -
      U1107 - - -

      Hybrid Vehicle Control ECU

      (Cruise Control)

      		 U0122 - - -
      ECM U0293 - - -
      Bus 2

      Certification ECU (Smart Key ECU Assembly)

      (Entry Function)

      		 U0100 - - -
      U0142 - - -
      U0155 - - -
      U0293 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0103 - - -
      U0129 - - -
      U0140 - - -
      U0293 - - -
      Combination Meter Sub-assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U023A ○ ○ ○
      U1104 ○ ○ ○
      Transmission Control ECU Assembly U0146 - - -
      Spiral Cable with Sensor Subassembly (Steering Angle Sensor) - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Navigation Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Radio and Display Receiver Assembly*2 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0293 - - -
      Bus 5 Central Gateway ECU (Network Gateway ECU)*1 - - - -
      Driving Support ECU Assembly U0122 ○ ○ ○
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0142 ○ ○ ○
      U0293 ○ ○ ○
      Bus 5 Parking Assist ECU U0100 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0293 ○ ○ ○

      Hybrid Vehicle Control ECU

      (Hybrid Control)

      		 U1104 ○ ○ ○
      Lane Departure Warning Camera U0101 ○ ○ ○
      U0123 ○ ○ ○
      U0129 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○