CAN COMMUNICATION SYSTEM 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.

        B008K6IC05
        *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 DTC Table by 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.

        B008LP0C04
        *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 DTC Table by ECU.)

        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.

      B008LFNC06
      *a Items to be Checked *b ECM
      *c Gateway function equipped ECU *d Location of malfunction
      *e Central bus *f Sub bus

      Note

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

      Tech Tips


      • As gateway function equipped ECUs (sub bus monitor ECU) monitor signals from all ECUs that are connected to sub buses, 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 central bus 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 1, PAST COMMUNICATION ERROR)


    1. Regarding a past communication error of an ECU and sensor connected to the bus 1 (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 branch line 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 branch line does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

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

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

      • If an open occurs in just one of the wires of a CAN branch line, 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.

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

      Blind Spot Monitor Sensor Communication Stop Mode

      Click here

      Clearance Warning ECU Communication Stop Mode

      Click here

      Front Camera Module Communication Stop Mode

      Click here

      Millimeter Wave Radar Sensor Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 ○ - - -
      U0125 ○ - - -
      U0126 ○ - - -
      U0129 ○ - - -
      U0142 ○ - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Clearance Warning ECU Assembly*1 U0100 - ○ - -
      U0101 - ○ - -
      U0124 - ○ - -
      U0126 - ○ - -
      U0129 - ○ - -
      U0131 - ○ - -
      U0140 - ○ - -
      U0151 - ○ - -
      U0155 - ○ - -
      U0164 - ○ - -
      U1103 - ○ - -
      Forward Recognition Camera U0100 - - ○ -
      U0101 - - ○ -
      U0123 - - ○ -
      U0126 - - ○ -
      U0129 - - ○ -
      U0131 - - ○ -
      U0142 - - ○ -
      U0155 - - ○ -
      Millimeter Wave Radar Sensor Assembly U0100 - - - ○
      U0125 - - - ○
      U0126 - - - ○
      U0129 - - - ○
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Engine Stop and Start ECU U0100 - - - -
      U0121 - - - -
      U0124 - - - -
      U0126 - - - -
      U0151 - - - -
      U0164 - - - -
      U1110 - ○ - -
      ECM U0124 - - - -
      U012587 - - - -

      U0129

      U012987

      		 - - - -
      U110387 - - - -
      U110487 - - - ○
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - - -
      ECM (Radar Cruise Control System) U010087 - - - -
      U012287 - - - -
      U110487 - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Radio and Display Receiver Assembly*1 U0100 - - - -
      U0129 - - - -
      U0140 - - - -
      U0155 - - - -
      U0164 - - - -
      U1110 - ○ - -
      Telematics Transceiver U0100 - - - -
      Bus 4 Airbag Sensor Assembly - - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Power Steering ECU Assembly U0100 - - - -
      U0129 - - - -
      U023A - - ○ -
      U1110 - ○ - -
      4WD ECU Assembly*1 U0100 - - - -
      U0126 - - - -
      U0129 - - - -
      Brake Actuator Assembly*1 U0100 - - - -
      U0123 - - - -
      U0124 - - - -
      U0126 - - - -
      U0142 - - - -
      U1103 - - - -
      Steering Sensor - - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - - -
      U0129 - - - -
      U0142 - - - -
      Air Conditioning Amplifier Assembly U0100 - - - -
      U0131 - - - -
      U0142 - - - -
      U0155 - - - -
      U0163 - - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
      U0101 - - - -
      U0120 - - - -
      U0129 - - - -
      U0151 - - - -
      U0155 - - - -
      U0182 - - - -
      U023A - - ○ -
      U0327 - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - - -
      U0142 - - - -
      U0155 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - - -
      U0140 - - - -
      U0155 - - - -
      Combination Meter Assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - - -
      U0151 - - - -
      U0163 - - - -
      U0182 - - - -
      U023A - - ○ ○
      U1104 - - - ○
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC Central Gateway ECU (Network Gateway ECU) (CA1H and CA1L Terminal) No. 1 CAN J/C to No. 6 CAN J/C Central Gateway ECU (Network Gateway ECU) (CAYH and CAYL Terminal)
      Bus 1 Blind Spot Monitor Sensor LH U0100 ○ ○ -
      U0125 ○ ○ -
      U0126 ○ ○ -
      U0129 ○ ○ -
      U0142 ○ ○ -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 ○ - -
      U0101 ○ - -
      U0124 ○ - -
      U0126 ○ - -
      U0129 ○ - -
      U0131 ○ - -
      U0140 ○ - -
      U0151 ○ - -
      U0155 ○ - -
      U0164 ○ - -
      U1103 ○ - -
      Forward Recognition Camera U0100 ○ - -
      U0101 ○ - -
      U0123 ○ - -
      U0126 ○ - -
      U0129 ○ - -
      U0131 ○ - -
      U0142 ○ - -
      U0155 ○ - -
      Millimeter Wave Radar Sensor Assembly U0100 ○ - -
      U0125 ○ - -
      U0126 ○ - -
      U0129 ○ - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 - - -
      U0124 - - -
      U0126 - - -
      U0151 - - -
      U0164 - - -
      U1110 ○ - -
      ECM U0124 - - -
      U012587 - - -

      U0129

      U012987

      		 - - -
      U110387 - - -
      U110487 ○ - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 - - -
      U110487 ○ - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 ○ - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 - - -
      U0129 - - -
      U023A ○ - -
      U1110 ○ - -
      4WD ECU Assembly*1 U0100 - - -
      U0126 - - -
      U0129 - - -
      Brake Actuator Assembly*1 U0100 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0142 - - -
      U1103 - - -
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - -
      U0129 - - -
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0163 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0182 - - -
      U023A ○ - -
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - -
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - -
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U0182 - - -
      U023A ○ - -
      U1104 ○ - -
      - 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 1 Blind Spot Monitor Sensor LH U0100 ○ ○ ○
      U0125 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0142 ○ ○ ○
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 ○ ○ ○
      U0151 ○ ○ ○
      U0155 ○ ○ ○
      U0164 ○ ○ ○
      U1103 ○ ○ ○
      Forward Recognition Camera U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      Millimeter Wave Radar Sensor Assembly U0100 ○ ○ ○
      U0125 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 - - -
      U0124 - - -
      U0126 - - -
      U0151 - - -
      U0164 - - -
      U1110 ○ ○ ○
      ECM U0124 - - -
      U012587 - - -

      U0129

      U012987

      		 - - -
      U110387 - - -
      U110487 ○ ○ ○
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 - - -
      U110487 ○ ○ ○
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 - - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 - - -
      U0129 - - -
      U023A ○ ○ ○
      U1110 ○ ○ ○
      4WD ECU Assembly*1 U0100 - - -
      U0126 - - -
      U0129 - - -
      Brake Actuator Assembly*1 U0100 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0142 - - -
      U1103 - - -
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - -
      U0129 - - -
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0163 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0182 - - -
      U023A ○ ○ ○
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - -
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - -
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U0182 - - -
      U023A ○ ○ ○
      U1104 ○ ○ ○

  3. 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 branch line 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 branch line does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

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

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

      • If an open occurs in just one of the wires of a CAN branch line, 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.

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

      Engine Stop and Start ECU Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 -
      U0125 -
      U0126 -
      U0129 -
      U0142 -
      Central Gateway ECU (Network Gateway ECU)*2 - -
      Clearance Warning ECU Assembly*1 U0100 -
      U0101 -
      U0124 -
      U0126 -
      U0129 -
      U0131 -
      U0140 -
      U0151 -
      U0155 -
      U0164 -
      U1103 ○
      Forward Recognition Camera U0100 -
      U0101 -
      U0123 -
      U0126 -
      U0129 -
      U0131 -
      U0142 -
      U0155 -
      Millimeter Wave Radar Sensor Assembly U0100 -
      U0125 -
      U0126 -
      U0129 -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - -
      Engine Stop and Start ECU U0100 ○
      U0121 ○
      U0124 ○
      U0126 ○
      U0151 ○
      U0164 ○
      U1110 ○
      ECM U0124 -
      U012587 -

      U0129

      U012987

      		 -
      U110387 ○
      U110487 ○
      ECM (Cruise Control System)

      U0122

      U012287

      		 -
      ECM (Radar Cruise Control System) U010087 -
      U012287 -
      U110487 ○
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - -
      Radio and Display Receiver Assembly*1 U0100 -
      U0129 -
      U0140 -
      U0155 -
      U0164 -
      U1110 -
      Telematics Transceiver U0100 -
      Bus 4 Airbag Sensor Assembly - -
      Central Gateway ECU (Network Gateway ECU)*2 - -
      Power Steering ECU Assembly U0100 -
      U0129 -
      U023A -
      U1110 -
      4WD ECU Assembly*1 U0100 -
      U0126 -
      U0129 -
      Brake Actuator Assembly*1 U0100 -
      U0123 -
      U0124 -
      U0126 -
      U0142 -
      U1103 ○
      Steering Sensor - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 -
      U0129 -
      U0142 -
      Air Conditioning Amplifier Assembly U0100 -
      U0131 -
      U0142 -
      U0155 -
      U0163 -
      Main Body ECU (Multiplex Network Body ECU) U0100 -
      U0101 -
      U0120 -
      U0129 -
      U0151 -
      U0155 -
      U0182 -
      U023A -
      U0327 -
      Central Gateway ECU (Network Gateway ECU)*2 - -
      Certification ECU (Smart Key ECU Assembly) U0100 -
      U0142 -
      U0155 -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 -
      U0140 -
      U0155 -
      Combination Meter Assembly U0100 -
      U0129 -
      U0131 -
      U0142 -
      U0151 -
      U0163 -
      U0182 -
      U023A -
      U1104 -
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC Central Gateway ECU (Network Gateway ECU)

      ECM Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 ○ ○
      U0125 - -
      U0126 - -
      U0129 - -
      U0142 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Clearance Warning ECU Assembly*1 U0100 ○ ○
      U0101 ○ ○
      U0124 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0140 - -
      U0151 - -
      U0155 - -
      U0164 - -
      U1103 ○ -
      Forward Recognition Camera U0100 ○ ○
      U0101 ○ ○
      U0123 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0155 - -
      Millimeter Wave Radar Sensor Assembly U0100 ○ ○
      U0125 - -
      U0126 - -
      U0129 - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Engine Stop and Start ECU U0100 - ○
      U0121 ○ -
      U0124 ○ -
      U0126 ○ -
      U0151 ○ -
      U0164 ○ -
      U1110 ○ -
      ECM U0124 ○ ○
      U012587 ○ ○

      U0129

      U012987

      		 ○ ○
      U110387 - ○
      U110487 ○ ○
      ECM (Cruise Control System)

      U0122

      U012287

      		 ○ ○
      ECM (Radar Cruise Control System) U010087 - ○
      U012287 ○ ○
      U110487 ○ ○
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Radio and Display Receiver Assembly*1 U0100 ○ ○
      U0129 - -
      U0140 - -
      U0155 - -
      U0164 - -
      U1110 - -
      Telematics Transceiver U0100 - -
      Bus 4 Airbag Sensor Assembly - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Power Steering ECU Assembly U0100 - -
      U0129 - -
      U023A - -
      U1110 - -
      4WD ECU Assembly*1 U0100 ○ ○
      U0126 - -
      U0129 - -
      Brake Actuator Assembly*1 U0100 ○ ○
      U0123 - -
      U0124 - -
      U0126 - -
      U0142 - -
      U1103 ○ -
      Steering Sensor - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 ○ ○
      U0129 - -
      U0142 - -
      Air Conditioning Amplifier Assembly U0100 ○ ○
      U0131 - -
      U0142 - -
      U0155 - -
      U0163 - -
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○
      U0101 ○ ○
      U0120 - -
      U0129 - -
      U0151 - -
      U0155 - -
      U0182 - -
      U023A - -
      U0327 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Certification ECU (Smart Key ECU Assembly) U0100 ○ ○
      U0142 - -
      U0155 - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 ○ ○
      U0140 - -
      U0155 - -
      Combination Meter Assembly U0100 ○ ○
      U0129 - -
      U0131 - -
      U0142 - -
      U0151 - -
      U0163 - -
      U0182 - -
      U023A - -
      U1104 - -
      - 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 1 Blind Spot Monitor Sensor LH U0100 ○ ○ ○
      U0125 - - -
      U0126 - - -
      U0129 - - -
      U0142 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0124 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U1103 ○ ○ ○
      Forward Recognition Camera U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0123 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      Millimeter Wave Radar Sensor Assembly U0100 ○ ○ ○
      U0125 - - -
      U0126 - - -
      U0129 - - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 ○ ○ ○
      U0121 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0151 ○ ○ ○
      U0164 ○ ○ ○
      U1110 ○ ○ ○
      ECM U0124 ○ ○ ○
      U012587 ○ ○ ○

      U0129

      U012987

      		 ○ ○ ○
      U110387 ○ ○ ○
      U110487 ○ ○ ○
      ECM (Cruise Control System)

      U0122

      U012287

      		 ○ ○ ○
      ECM (Radar Cruise Control System) U010087 ○ ○ ○
      U012287 ○ ○ ○
      U110487 ○ ○ ○
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 - - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 ○ ○ ○
      U0129 - - -
      U023A - - -
      U1110 - - -
      4WD ECU Assembly*1 U0100 ○ ○ ○
      U0126 - - -
      U0129 - - -
      Brake Actuator Assembly*1 U0100 ○ ○ ○
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0142 - - -
      U1103 ○ ○ ○
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 ○ ○ ○
      U0129 - - -
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 ○ ○ ○
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0163 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0182 - - -
      U023A - - -
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 ○ ○ ○
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 ○ ○ ○
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 ○ ○ ○
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 - - -
      U0182 - - -
      U023A - - -
      U1104 - - -

  4. 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 branch line 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 branch line does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

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

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

      • If an open occurs in just one of the wires of a CAN branch line, 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.

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

      Radio Receiver Assembly Communication Stop Mode

      Click here

      DCM Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 - -
      U0125 - -
      U0126 - -
      U0129 - -
      U0142 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Clearance Warning ECU Assembly*1 U0100 - -
      U0101 - -
      U0124 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0140 - -
      U0151 - -
      U0155 - -
      U0164 - -
      U1103 - -
      Forward Recognition Camera U0100 - -
      U0101 - -
      U0123 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0155 - -
      Millimeter Wave Radar Sensor Assembly U0100 - -
      U0125 - -
      U0126 - -
      U0129 - -
      U023A - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Engine Stop and Start ECU U0100 - -
      U0121 - -
      U0124 - -
      U0126 - -
      U0151 - -
      U0164 - -
      U1110 - -
      ECM U0124 - -
      U012587 - -

      U0129

      U012987

      		 - -
      U110387 - -
      U110487 - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - -
      ECM (Radar Cruise Control System) U010087 - -
      U012287 - -
      U110487 - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Radio and Display Receiver Assembly*1 U0100 ○ -
      U0129 ○ -
      U0140 ○ -
      U0155 ○ -
      U0164 ○ -
      U1110 ○ -
      Telematics Transceiver U0100 - ○
      Bus 4 Airbag Sensor Assembly - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Power Steering ECU Assembly U0100 - -
      U0129 - -
      U023A - -
      U1110 - -
      4WD ECU Assembly*1 U0100 - -
      U0126 - -
      U0129 - -
      Brake Actuator Assembly*1 U0100 - -
      U0123 - -
      U0124 - -
      U0126 - -
      U0142 - -
      U1103 - -
      Steering Sensor - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - -
      U0129 - -
      U0142 - -
      Air Conditioning Amplifier Assembly U0100 - -
      U0131 - -
      U0142 - -
      U0155 - -
      U0163 ○ -
      Main Body ECU (Multiplex Network Body ECU) U0100 - -
      U0101 - -
      U0120 - -
      U0129 - -
      U0151 - -
      U0155 - -
      U0182 - -
      U023A - -
      U0327 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - -
      U0142 - -
      U0155 - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - -
      U0140 - -
      U0155 - -
      Combination Meter Assembly U0100 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0151 - -
      U0163 ○ -
      U0182 - -
      U023A - -
      U1104 - -
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC Central Gateway ECU (Network Gateway ECU) (CA3H and CA3L Terminal) Central Gateway ECU (Network Gateway ECU) (CAYH and CAYL Terminal)
      Bus 1 Blind Spot Monitor Sensor LH U0100 - -
      U0125 - -
      U0126 - -
      U0129 - -
      U0142 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Clearance Warning ECU Assembly*1 U0100 - -
      U0101 - -
      U0124 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0140 - -
      U0151 - -
      U0155 - -
      U0164 - -
      U1103 - -
      Forward Recognition Camera U0100 - -
      U0101 - -
      U0123 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0155 - -
      Millimeter Wave Radar Sensor Assembly U0100 - -
      U0125 - -
      U0126 - -
      U0129 - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Engine Stop and Start ECU U0100 - -
      U0121 - -
      U0124 - -
      U0126 - -
      U0151 - -
      U0164 - -
      U1110 - -
      ECM U0124 - -
      U012587 - -

      U0129

      U012987

      		 - -
      U110387 - -
      U110487 - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - -
      ECM (Radar Cruise Control System) U010087 - -
      U012287 - -
      U110487 - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Radio and Display Receiver Assembly*1 U0100 - -
      U0129 ○ -
      U0140 ○ -
      U0155 ○ -
      U0164 ○ -
      U1110 ○ -
      Telematics Transceiver U0100 ○ -
      Bus 4 Airbag Sensor Assembly - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Power Steering ECU Assembly U0100 - -
      U0129 - -
      U023A - -
      U1110 - -
      4WD ECU Assembly*1 U0100 - -
      U0126 - -
      U0129 - -
      Brake Actuator Assembly*1 U0100 - -
      U0123 - -
      U0124 - -
      U0126 - -
      U0142 - -
      U1103 - -
      Steering Sensor - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - -
      U0129 - -
      U0142 - -
      Air Conditioning Amplifier Assembly U0100 - -
      U0131 - -
      U0142 - -
      U0155 - -
      U0163 ○ -
      Main Body ECU (Multiplex Network Body ECU) U0100 - -
      U0101 - -
      U0120 - -
      U0129 - -
      U0151 - -
      U0155 - -
      U0182 - -
      U023A - -
      U0327 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - -
      U0142 - -
      U0155 - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - -
      U0140 - -
      U0155 - -
      Combination Meter Assembly U0100 - -
      U0129 - -
      U0131 - -
      U0142 - -
      U0151 - -
      U0163 ○ -
      U0182 - -
      U023A - -
      U1104 - -
      - 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 1 Blind Spot Monitor Sensor LH U0100 - - -
      U0125 - - -
      U0126 - - -
      U0129 - - -
      U0142 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 - - -
      U0101 - - -
      U0124 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 - - -
      U0151 - - -
      U0155 - - -
      U0164 - - -
      U1103 - - -
      Forward Recognition Camera U0100 - - -
      U0101 - - -
      U0123 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      Millimeter Wave Radar Sensor Assembly U0100 - - -
      U0125 - - -
      U0126 - - -
      U0129 - - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 - - -
      U0124 - - -
      U0126 - - -
      U0151 - - -
      U0164 - - -
      U1110 - - -
      ECM U0124 - - -
      U012587 - - -

      U0129

      U012987

      		 - - -
      U110387 - - -
      U110487 - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 - - -
      U110487 - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      U0164 ○ ○ ○
      U1110 ○ ○ ○
      Telematics Transceiver U0100 ○ ○ ○
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 - - -
      U0129 - - -
      U023A - - -
      U1110 - - -
      4WD ECU Assembly*1 U0100 - - -
      U0126 - - -
      U0129 - - -
      Brake Actuator Assembly*1 U0100 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0142 - - -
      U1103 - - -
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - -
      U0129 - - -
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 - - -
      U0142 - - -
      U0155 - - -
      U0163 ○ ○ ○
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 - - -
      U0151 - - -
      U0155 - - -
      U0182 - - -
      U023A - - -
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - -
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - -
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 - - -
      U0129 - - -
      U0131 - - -
      U0142 - - -
      U0151 - - -
      U0163 ○ ○ ○
      U0182 - - -
      U023A - - -
      U1104 - - -

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


    1. Regarding a past communication error of an ECU and sensor connected to the bus 4 (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 branch line 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 branch line does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

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

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

      • If an open occurs in just one of the wires of a CAN branch line, 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.

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

      Power Steering ECU Communication Stop Mode

      Click here

      4WD Control ECU Communication Stop Mode

      Click here

      Skid Control ECU Communication Stop Mode

      Click here

      Steering Angle Sensor Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 - - - -
      U0125 - - - -
      U0126 - - - ○
      U0129 - - ○ -
      U0142 - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Clearance Warning ECU Assembly*1 U0100 - - - -
      U0101 - - - -
      U0124 - - - -
      U0126 - - - ○
      U0129 - - ○ -
      U0131 ○ - - -
      U0140 - - - -
      U0151 - - - -
      U0155 - - - -
      U0164 - - - -
      U1103 - - - -
      Forward Recognition Camera U0100 - - - -
      U0101 - - - -
      U0123 - - - -
      U0126 - - - ○
      U0129 - - ○ -
      U0131 ○ - - -
      U0142 - - - -
      U0155 - - - -
      Millimeter Wave Radar Sensor Assembly U0100 - - - -
      U0125 - - - -
      U0126 - - - -
      U0129 - - - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Engine Stop and Start ECU U0100 - - - -
      U0121 - - ○ -
      U0124 - - - -
      U0126 - - - ○
      U0151 - - - -
      U0164 - - - -
      U1110 - - - -
      ECM U0124 - - - -
      U012587 - - - -

      U0129

      U012987

      		 - - ○ -
      U110387 - - - -
      U110487 - - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 ○ - - -
      ECM (Radar Cruise Control System) U010087 - - - -
      U012287 ○ - - -
      U110487 - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Radio and Display Receiver Assembly*1 U0100 - - - -
      U0129 - - ○ -
      U0140 - - - -
      U0155 - - - -
      U0164 - - - -
      U1110 - - - -
      Telematics Transceiver U0100 - - - -
      Bus 4 Airbag Sensor Assembly - - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Power Steering ECU Assembly U0100 - - - -
      U0129 - - ○ -
      U023A - - - -
      U1110 ○ - - -
      4WD ECU Assembly*1 U0100 - - - -
      U0126 - - - ○
      U0129 - - ○ -
      Brake Actuator Assembly*1 U0100 - - - -
      U0123 - - - -
      U0124 - - - -
      U0126 - - - ○
      U0142 - - - -
      U1103 - - ○ -
      Steering Sensor - - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - - -
      U0129 - - ○ -
      U0142 - - - -
      Air Conditioning Amplifier Assembly U0100 - - - -
      U0131 - - - -
      U0142 - - - -
      U0155 - - - -
      U0163 - - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
      U0101 - - - -
      U0120 - - - -
      U0129 - - - -
      U0151 - - - -
      U0155 - - - -
      U0182 - - - -
      U023A - - - -
      U0327 - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - - -
      U0142 - - - -
      U0155 - - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - - -
      U0140 - - - -
      U0155 - - - -
      Combination Meter Assembly U0100 - - - -
      U0129 - - ○ -
      U0131 ○ - - -
      U0142 - - - -
      U0151 - - - -
      U0163 - - - -
      U0182 - - - -
      U023A - - - -
      U1104 - - - -
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC Central Gateway ECU (Network Gateway ECU)

      No. 4 CAN J/C to No. 5 CAN J/C (for LHD)

      No. 4 CAN J/C to No. 5 CAN J/C (for RHD)

      Center Airbag Sensor Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 - - -
      U0125 ○ ○ ○
      U0126 ○ ○ -
      U0129 ○ - -
      U0142 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 - - -
      U0101 - - -
      U0124 ○ ○ ○
      U0126 ○ ○ -
      U0129 ○ - -
      U0131 ○ ○ -
      U0140 - - -
      U0151 ○ ○ ○
      U0155 - - -
      U0164 - - -
      U1103 - - -
      Forward Recognition Camera U0100 - - -
      U0101 - - -
      U0123 ○ ○ ○
      U0126 ○ ○ -
      U0129 ○ - -
      U0131 ○ ○ -
      U0142 - - -
      U0155 - - -
      Millimeter Wave Radar Sensor Assembly U0100 - - -
      U0125 ○ ○ ○
      U0126 ○ ○ -
      U0129 ○ - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 ○ - -
      U0124 ○ ○ ○
      U0126 ○ ○ -
      U0151 ○ ○ ○
      U0164 - - -
      U1110 - - -
      ECM U0124 ○ ○ ○
      U012587 ○ ○ ○

      U0129

      U012987

      		 ○ - -
      U110387 - - -
      U110487 - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 ○ - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 ○ - -
      U110487 - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 ○ - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 - - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 ○ - -
      U0129 - ○ -
      U023A ○ - -
      U1110 ○ ○ -
      4WD ECU Assembly*1 U0100 ○

      - (for LHD)

      ○ (for RHD)

      		 -
      U0126 -

      ○ (for LHD)

      - (for RHD)

      		 -
      U0129 -

      - (for LHD)

      ○ (for RHD)

      		 -
      Brake Actuator Assembly*1 U0100 ○ - -
      U0123 - ○ ○
      U0124 - ○ ○
      U0126 - ○ -
      U0142 ○ - -
      U1103 ○ - -
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - -
      U0129 ○ - -
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 ○ ○ -
      U0142 - - -
      U0155 - - -
      U0163 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 ○ - -
      U0151 ○ ○ ○
      U0155 - - -
      U0182 - - -
      U023A - - -
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - -
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - -
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 - - -
      U0129 ○ - -
      U0131 ○ ○ -
      U0142 - - -
      U0151 ○ ○ ○
      U0163 - - -
      U0182 - - -
      U023A - - -
      U1104 - - -
      - 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 1 Blind Spot Monitor Sensor LH U0100 - - -
      U0125 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0142 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 - - -
      U0101 - - -
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0140 - - -
      U0151 ○ ○ ○
      U0155 - - -
      U0164 - - -
      U1103 - - -
      Forward Recognition Camera U0100 - - -
      U0101 - - -
      U0123 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 - - -
      U0155 - - -
      Millimeter Wave Radar Sensor Assembly U0100 - - -
      U0125 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0151 ○ ○ ○
      U0164 ○ ○ ○
      U1110 - - -
      ECM U0124 - - -
      U012587 - - -

      U0129

      U012987

      		 - - -
      U110387 - - -
      U110487 - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 - - -
      U110487 - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 - - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 ○ ○ ○
      U0129 ○ ○ ○
      U023A ○ ○ ○
      U1110 ○ ○ ○
      4WD ECU Assembly*1 U0100 ○ ○ ○
      U0126 ○ ○ ○
      U0129 ○ ○ ○
      Brake Actuator Assembly*1 U0100 ○ ○ ○
      U0123 ○ ○ ○
      U0124 ○ ○ ○
      U0126 ○ ○ ○
      U0142 ○ ○ ○
      U1103 ○ ○ ○
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - - -
      U0129 ○ ○ ○
      U0142 - - -
      Air Conditioning Amplifier Assembly U0100 - - -
      U0131 ○ ○ ○
      U0142 - - -
      U0155 - - -
      U0163 - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - -
      U0101 - - -
      U0120 - - -
      U0129 ○ ○ ○
      U0151 ○ ○ ○
      U0155 - - -
      U0182 - - -
      U023A - - -
      U0327 - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - -
      U0142 - - -
      U0155 - - -

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - -
      U0140 - - -
      U0155 - - -
      Combination Meter Assembly U0100 - - -
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 - - -
      U0151 ○ ○ ○
      U0163 - - -
      U0182 - - -
      U023A - - -
      U1104 - - -

  6. 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 branch line 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 branch line does not respond (the ECU or sensor name will not be displayed on the screen).

      • ○: DTC is output.

      • -: DTC is not output.

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

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

      • If an open occurs in just one of the wires of a CAN branch line, 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.

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

      Center Airbag Sensor Communication Stop Mode

      Click here

      Headlight ECU Communication Stop Mode

      Click here

      Main Body ECU Communication Stop Mode

      Click here

      Certification ECU Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 - - - -
      U0125 - - - -
      U0126 - - - -
      U0129 - - - -
      U0142 - - ○ -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Clearance Warning ECU Assembly*1 U0100 - - - -
      U0101 - - - -
      U0124 - - - -
      U0126 - - - -
      U0129 - - - -
      U0131 - - - -
      U0140 - - - -
      U0151 - - - -
      U0155 - - - -
      U0164 ○ - - -
      U1103 - - - -
      Forward Recognition Camera U0100 - - - -
      U0101 - - - -
      U0123 - - - -
      U0126 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - ○ -
      U0155 - - ○ -
      Millimeter Wave Radar Sensor Assembly U0100 - - - -
      U0125 - - - -
      U0126 - - - -
      U0129 - - - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Engine Stop and Start ECU U0100 - - - -
      U0121 - - - -
      U0124 - - - -
      U0126 - - - -
      U0151 - - - -
      U0164 ○ - - -
      U1110 - - - -
      ECM U0124 - - - -
      U012587 - - - -

      U0129

      U012987

      		 - - - -
      U110387 - - - -
      U110487 - - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - - -
      ECM (Radar Cruise Control System) U010087 - - - -
      U012287 - - - -
      U110487 - - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Radio and Display Receiver Assembly*1 U0100 - - - -
      U0129 - - - -
      U0140 - - ○ -
      U0155 - - - -
      U0164 ○ - - -
      U1110 - - - -
      Telematics Transceiver U0100 - - - -
      Bus 4 Airbag Sensor Assembly - - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Power Steering ECU Assembly U0100 - - - -
      U0129 - - - -
      U023A - - - -
      U1110 - - - -
      4WD ECU Assembly*1 U0100 - - - -
      U0126 - - - -
      U0129 - - - -
      Brake Actuator Assembly*1 U0100 - - - -
      U0123 - - - -
      U0124 - - - -
      U0126 - - - -
      U0142 - - ○ -
      U1103 - - - -
      Steering Sensor - - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 - ○ - -
      U0129 - ○ - -
      U0142 - ○ ○ -
      Air Conditioning Amplifier Assembly U0100 ○ - - -
      U0131 ○ - - -
      U0142 ○ - ○ -
      U0155 ○ - - -
      U0163 ○ - - -
      Main Body ECU (Multiplex Network Body ECU) U0100 - - ○ -
      U0101 - - ○ -
      U0120 - - ○ ○
      U0129 - - ○ -
      U0151 - - ○ -
      U0155 - - ○ -
      U0182 - - ○ -
      U023A - - ○ -
      U0327 - - ○ ○
      Central Gateway ECU (Network Gateway ECU)*2 - - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 - - - ○
      U0142 - - ○ ○
      U0155 - - - ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 - - - ○
      U0140 - - ○ ○
      U0155 - - - ○
      Combination Meter Assembly U0100 - - - -
      U0129 - - - -
      U0131 - - - -
      U0142 - - ○ -
      U0151 - - - -
      U0163 - - - -
      U0182 - ○ - -
      U023A - - - -
      U1104 - - - -
      - Trouble Mode
      Open in CAN main bus line(s)
      Output ECU Output DTC Central Gateway ECU (Network Gateway ECU)

      Combination Meter ECU Communication Stop Mode

      Click here

      Bus 1 Blind Spot Monitor Sensor LH U0100 - -
      U0125 - -
      U0126 - -
      U0129 ○ -
      U0142 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Clearance Warning ECU Assembly*1 U0100 - -
      U0101 - -
      U0124 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0140 ○ -
      U0151 - -
      U0155 ○ ○
      U0164 ○ -
      U1103 - -
      Forward Recognition Camera U0100 - -
      U0101 - -
      U0123 - -
      U0126 - -
      U0129 - -
      U0131 - -
      U0142 ○ -
      U0155 ○ ○
      Millimeter Wave Radar Sensor Assembly U0100 - -
      U0125 - -
      U0126 - -
      U0129 - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Engine Stop and Start ECU U0100 - -
      U0121 - -
      U0124 - -
      U0126 - -
      U0151 - -
      U0164 - -
      U1110 - -
      ECM U0124 - -
      U012587 - -

      U0129

      U012987

      		 - -
      U110387 - -
      U110487 - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - -
      ECM (Radar Cruise Control System) U010087 - -
      U012287 - -
      U110487 - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - -
      Radio and Display Receiver Assembly*1 U0100 - -
      U0129 - -
      U0140 ○ -
      U0155 ○ ○
      U0164 ○ -
      U1110 - -
      Telematics Transceiver U0100 - -
      Bus 4 Airbag Sensor Assembly - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Power Steering ECU Assembly U0100 - -
      U0129 - -
      U023A - -
      U1110 - -
      4WD ECU Assembly*1 U0100 - -
      U0126 - -
      U0129 - -
      Brake Actuator Assembly*1 U0100 - -
      U0123 - -
      U0124 - -
      U0126 - -
      U0142 ○ -
      U1103 - -
      Steering Sensor - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 ○ -
      U0129 ○ -
      U0142 - -
      Air Conditioning Amplifier Assembly U0100 ○ -
      U0131 ○ -
      U0142 - -
      U0155 - ○
      U0163 ○ -
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ -
      U0101 ○ -
      U0120 - -
      U0129 ○ -
      U0151 ○ -
      U0155 - ○
      U0182 - -
      U023A ○ -
      U0327 - -
      Central Gateway ECU (Network Gateway ECU)*2 - - -
      Certification ECU (Smart Key ECU Assembly) U0100 ○ -
      U0142 - -
      U0155 - ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 ○ -
      U0140 - -
      U0155 - ○
      Combination Meter Assembly U0100 ○ ○
      U0129 ○ ○
      U0131 ○ ○
      U0142 - ○
      U0151 ○ ○
      U0163 ○ ○
      U0182 - ○
      U023A ○ ○
      U1104 ○ ○
      - 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 1 Blind Spot Monitor Sensor LH U0100 - - -
      U0125 - - -
      U0126 - - -
      U0129 - - -
      U0142 ○ ○ ○
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Clearance Warning ECU Assembly*1 U0100 - - -
      U0101 - - -
      U0124 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0140 ○ ○ ○
      U0151 - - -
      U0155 ○ ○ ○
      U0164 ○ ○ ○
      U1103 - - -
      Forward Recognition Camera U0100 - - -
      U0101 - - -
      U0123 - - -
      U0126 - - -
      U0129 - - -
      U0131 - - -
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      Millimeter Wave Radar Sensor Assembly U0100 - - -
      U0125 - - -
      U0126 - - -
      U0129 - - -
      Bus 2 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Engine Stop and Start ECU U0100 - - -
      U0121 - - -
      U0124 - - -
      U0126 - - -
      U0151 - - -
      U0164 - - -
      U1110 - - -
      ECM U0124 - - -
      U012587 - - -

      U0129

      U012987

      		 - - -
      U110387 - - -
      U110487 - - -
      ECM (Cruise Control System)

      U0122

      U012287

      		 - - -
      ECM (Radar Cruise Control System) U010087 - - -
      U012287 - - -
      U110487 - - -
      Bus 3 Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Radio and Display Receiver Assembly*1 U0100 - - -
      U0129 - - -
      U0140 - - -
      U0155 - - -
      U0164 - - -
      U1110 - - -
      Telematics Transceiver U0100 - - -
      Bus 4 Airbag Sensor Assembly - - - -
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Power Steering ECU Assembly U0100 - - -
      U0129 - - -
      U023A - - -
      U1110 - - -
      4WD ECU Assembly*1 U0100 - - -
      U0126 - - -
      U0129 - - -
      Brake Actuator Assembly*1 U0100 - - -
      U0123 - - -
      U0124 - - -
      U0126 - - -
      U0142 ○ ○ ○
      U1103 - - -
      Steering Sensor - - - -
      Bus 5 Headlight ECU Sub-assembly LH*1 U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0142 ○ ○ ○
      Air Conditioning Amplifier Assembly U0100 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○
      U0163 ○ ○ ○
      Main Body ECU (Multiplex Network Body ECU) U0100 ○ ○ ○
      U0101 ○ ○ ○
      U0120 ○ ○ ○
      U0129 ○ ○ ○
      U0151 ○ ○ ○
      U0155 ○ ○ ○
      U0182 ○ ○ ○
      U023A ○ ○ ○
      U0327 ○ ○ ○
      Central Gateway ECU (Network Gateway ECU)*2 - - - -
      Certification ECU (Smart Key ECU Assembly) U0100 ○ ○ ○
      U0142 ○ ○ ○
      U0155 ○ ○ ○

      Certification ECU (Smart Key ECU Assembly)

      (Power Source Switching Function)

      		 U0100 ○ ○ ○
      U0140 ○ ○ ○
      U0155 ○ ○ ○
      Combination Meter Assembly U0100 ○ ○ ○
      U0129 ○ ○ ○
      U0131 ○ ○ ○
      U0142 ○ ○ ○
      U0151 ○ ○ ○
      U0163 ○ ○ ○
      U0182 ○ ○ ○
      U023A ○ ○ ○
      U1104 ○ ○ ○