CAN COMMUNICATION SYSTEM TERMINALS OF ECU

Note


  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

  • Before measuring the resistance of the CAN bus, turn the power switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.

  • This section describes the standard values for all CAN related components.

Tech Tips


  • The systems (ECUs and sensors) that use CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed to the vehicle.

  • Operating the power switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.


  1. CAN NO. 1 JUNCTION CONNECTOR (for LHD)


    1. Check the CAN No. 1 junction connector (Engine room main wire side).

      Tech Tips

      The following tables contain information about the items and buses connected via junction connectors. The junction connector may be used for multiple separate buses. In this case, the name of the bus will be shown below the name of the item that terminals are connected to. The bus name will be shown in brackets (example: (for Sub bus 12)).


      1. Connection diagram

        B001MPCE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 1 Junction Connector)

        		 *b

        to ECM

        (for Bus 2)
        *c

        to Skid Control ECU

        (Brake Booster with Master Cylinder Assembly)

        (for Bus 2)

        		 *d

        to Skid Control ECU

        (Brake Booster with Master Cylinder Assembly)

        (for Sub Bus 12)
        *e

        to ECM

        (for Sub Bus 12)

        		 - -

      2. Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to (Applicable Bus)
        A57-1 (CANH) P

        ECM

        (for Bus 2)
        A57-7 (CANL) W
        A57-2 (CANH) LG

        Skid control ECU

        (brake booster with master cylinder assembly)

        (for Bus 2)
        A57-8 (CANL) W
        A57-3 (CANH) P

        Skid control ECU

        (brake booster with master cylinder assembly)

        (for Sub bus 12)
        A57-9 (CANL) W
        A57-4 (CANH) B

        ECM

        (for Sub bus 12)
        A57-10 (CANL) W

    2. Check the CAN No. 1 junction connector (Instrument panel wire side).


      1. Connection diagram

        B001M1KE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 1 Junction Connector)

        		 *b

        to CAN No. 5 Junction Connector

        (for Sub Bus 12)
        *c

        Main body ECU

        (Multiplex Network Body ECU)

        (for Bus 2)

        		 *d

        to CAN No. 2 Junction Connector

        (for Bus 2)

      2. Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to (Applicable Bus)
        H112-3 (CANH) B

        CAN No. 5 junction connector

        (for Sub bus 12)
        H112-9 (CANL) W
        H112-5 (CANH) L

        Main body ECU

        (multiplex network body ECU)

        (for Bus 2)
        H112-11 (CANL) W
        H112-6 (CANH) G

        CAN No. 2 junction connector

        (for Bus 2)
        H112-12 (CANL) W

  2. CAN NO. 1 JUNCTION CONNECTOR (for RHD)


    1. Check the CAN No. 1 junction connector (Engine room main wire side).


      1. Connection diagram

        B001MAHE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 1 Junction Connector)

        		 *b to ECM
        *c to Transmission Control ECU Assembly - -

      2. Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        A71-1 (CANH) P ECM
        A71-7 (CANL) W
        A71-2 (CANH) Y Transmission control ECU assembly
        A71-8 (CANL) W

    2. Check the CAN No. 1 junction connector (Instrument panel wire side).


      1. Connection diagram

        B001MK1E02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 1 Junction Connector)

        		 *b to Power Management Control ECU
        *c

        to Main body ECU

        (Multiplex Network Body ECU)

        		 *d to CAN No. 2 Junction Connector

      2. Check the connection diagram of the components which are connected to the CAN No. 1 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H141-4 (CANH) V Power management control ECU
        H141-10 (CANL) W
        H141-5 (CANH) L

        Main body ECU

        (multiplex network body ECU)
        H141-11 (CANL) W
        H141-6 (CANH) G CAN No. 2 junction connector
        H141-12 (CANL) W

  3. CAN NO. 2 JUNCTION CONNECTOR


    1. Check the CAN No. 2 junction connector (Instrument panel connector holder front side).


      1. Connection diagram

        B001LMOC30
        *a

        Front view of wire harness connector

        (to CAN No. 2 Junction Connector)

        		 *b

        to Steering Angle Sensor

        (Spiral Cable with Sensor Sub-assembly)
        *c

        to Certification ECU

        (Smart Key ECU Assembly)

        		 *d to Airbag Sensor Assembly
        *e to Yaw Rate and Acceleration Sensor - -

      2. Check the connection diagram of the components which are connected to the CAN No. 2 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H105-3 (CANH) LG

        Steering angle sensor

        (spiral cable with sensor sub-assembly)
        H105-2 (CANL) W
        H105-6 (CANH) V

        Certification ECU

        (smart key ECU assembly)
        H105-5 (CANL) W
        H105-9 (CANH) L Airbag sensor assembly
        H105-8 (CANL) W
        H105-12 (CANH) SB Yaw rate and acceleration sensor
        H105-11 (CANL) W

    2. Check the CAN No. 2 junction connector (Instrument panel connector holder rear side).


      1. Connection diagram

        B001LMOC29
        *a

        Front view of wire harness connector

        (to CAN No. 2 Junction Connector)

        		 *b to CAN No. 1 Junction Connector
        *c to CAN No. 3 Junction Connector *d to Central Gateway ECU (Network Gateway ECU)
        *e to Power Steering ECU Assembly - -

      2. Check the connection diagram of the components which are connected to the CAN No. 2 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H104-1 (CANH) G CAN No. 1 junction connector
        H104-2 (CANL) W
        H104-4 (CANH) R CAN No. 3 junction connector
        H104-5 (CANL) W
        H104-7 (CANH) GR Central gateway ECU (network gateway ECU)
        H104-8 (CANL) W
        H104-10 (CANH) P Power steering ECU assembly
        H104-11 (CANL) W

  4. CAN NO. 3 JUNCTION CONNECTOR (for LHD)


    1. Check the CAN No. 3 junction connector (Engine room main wire side).


      1. Connection diagram

        B001L4SE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 3 Junction Connector)

        		 *b to Transmission Control ECU Assembly

      2. Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        A58-1 (CANH) Y Transmission control ECU assembly
        A58-7 (CANL) W

    2. Check the CAN No. 3 junction connector (Instrument panel wire side).


      1. Connection diagram

        B001MYRE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 3 Junction Connector)

        		 *b to Power Management Control ECU
        *c to CAN No. 2 Junction Connector *d to Combination Meter Assembly

      2. Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H113-4 (CANH) V Power management control ECU
        H113-10 (CANL) W
        H113-5 (CANH) R CAN No. 2 junction connector
        H113-11 (CANL) W
        H113-6 (CANH) P Combination meter assembly
        H113-12 (CANL) W

  5. CAN NO. 3 JUNCTION CONNECTOR (for RHD)


    1. Check the CAN No. 3 junction connector (Engine room main wire side).

      Tech Tips

      The following tables contain information about the items and buses connected via junction connectors. The junction connector may be used for multiple separate buses. In this case, the name of the bus will be shown below the name of the item that terminals are connected to. The bus name will be shown in brackets (example: (for Sub bus 12)).


      1. Connection diagram

        B001KJOE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 3 Junction Connector)

        		 *b

        to Skid Control ECU

        (Brake Booster with Master Cylinder Assembly)

        (for Bus 2)
        *c

        to Skid Control ECU

        (Brake Booster with Master Cylinder Assembly)

        (for Sub Bus 12)

        		 *d

        to ECM

        (for Sub Bus 12)

      2. Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to (Applicable Bus)
        A72-1 (CANH) LG

        Skid control ECU

        (brake booster with master cylinder assembly)

        (for Bus 2)
        A72-7 (CANL) W
        A72-3 (CANH) P

        Skid control ECU

        (brake booster with master cylinder assembly)

        (for Sub bus 12)
        A72-9 (CANL) W
        A72-4 (CANH) B

        ECM

        (for Sub bus 12)
        A72-10 (CANL) W

    2. Check the CAN No. 3 junction connector (Instrument panel wire side).


      1. Connection diagram

        B001LRDE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 3 Junction Connector)

        		 *b

        to CAN No. 5 Junction Connector

        (for Sub Bus 12)
        *c

        to CAN No. 2 Junction Connector

        (for Bus 2)

        		 *d

        to Combination Meter Assembly

        (for Bus 2)

      2. Check the connection diagram of the components which are connected to the CAN No. 3 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to (Applicable Bus)
        H142-3 (CANH) B

        CAN No. 5 junction connector

        (for Sub bus 12)
        H142-9 (CANL) W
        H142-5 (CANH) R

        CAN No. 2 junction connector

        (for Bus 2)
        H142-11 (CANL) W
        H142-6 (CANH) P

        Combination meter assembly

        (for Bus 2)
        H142-12 (CANL) W

  6. CAN NO. 4 JUNCTION CONNECTOR (for Bus 5)


    1. Check the CAN No. 4 junction connector.


      1. Connection diagram

        B001N49C15
        *a

        Front view of wire harness connector

        (to CAN No. 4 Junction Connector)

        		 *b

        to Millimeter Wave Radar Sensor Assembly

        (w/ Lexus Safety System +)
        *c

        to Forward Recognition Camera

        (w/ Lexus Safety System +)

        		 *d

        to Clearance Warning ECU Assembly

        (w/ LEXUS Parking Assist-sensor System)
        *e

        to Driving Support ECU Assembly

        (w/ Lexus Safety System +)

        		 *f

        • to CAN No. 7 Junction Connector

          (w/ Parking Assist Monitor System (w/o Parallel Parking Assist Function))

        • to Power Management Control ECU

          (w/o Parking Assist Monitor System or w/ Parking Assist Monitor System (w/ Parallel Parking Assist Function))
        *g to Central Gateway ECU (Network Gateway ECU) - -

      2. Check the connection diagram of the components which are connected to the CAN No. 4 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H191-1 (CANH) R Millimeter wave radar sensor assembly*1
        H191-7 (CANL) W
        H191-2 (CANH) SB Forward recognition camera*1
        H191-8 (CANL) W
        H191-3 (CANH) G Clearance warning ECU assembly*2
        H191-9 (CANL) W
        H191-4 (CANH) L Driving support ECU assembly*1
        H191-10 (CANL) B
        H191-5 (CANH) B

        • CAN No. 7 junction connector*3

        • Power management control ECU*4
        H191-11 (CANL) W
        H191-6 (CANH) GR Central gateway ECU (network gateway ECU)
        H191-12 (CANL) W

        *1: w/ Lexus Safety System +

        *2: w/ LEXUS Parking Assist-sensor System

        *3: w/ Parking Assist Monitor System (w/o Parallel Parking Assist Function)

        *4: w/o Parking Assist Monitor System or w/ Parking Assist Monitor System (w/ Parallel Parking Assist Function)

  7. CAN NO. 5 JUNCTION CONNECTOR (for Sub Bus 12)


    1. Check the CAN No. 5 junction connector (Instrument panel connector holder front side).


      1. Connection diagram

        B001LN9E02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 5 Junction Connector)

        		 *b

        to CAN No. 1 Junction Connector (for LHD)

        to CAN No. 3 Junction Connector (for RHD)

      2. Check the connection diagram of the components which are connected to the CAN No. 5 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H97-2 (CANH) B

        CAN No. 1 junction connector*1

        CAN No. 3 junction connector*2
        H97-3 (CANL) W

        *1: for LHD

        *2: for RHD

    2. Check the CAN No. 5 junction connector (Instrument panel connector holder rear side).


      1. Connection diagram

        B001M1VE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to CAN No. 5 Junction Connector)

        		 *b to Air Conditioning Amplifier Assembly
        *c to Power Management Control ECU - -

      2. Check the connection diagram of the components which are connected to the CAN No. 5 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H98-5 (CANH) R Air conditioning amplifier assembly
        H98-3 (CANL) W
        H98-6 (CANH) LG Power management control ECU
        H98-4 (CANL) W

  8. CAN NO. 6 JUNCTION CONNECTOR (for Sub Bus 1)


    1. Check the CAN No. 6 junction connector.


      1. Connection diagram

        B001LIRE02
        Text in Illustration
        *1 CAN No. 6 Junction Connector - -
        *a Junction Connector B Side *b Junction Connector A Side
        *c Ground Terminal *d

        Front view of wire harness connector

        (to CAN No. 6 Junction Connector)

      2. Check the connection diagram of the components which are connected to the CAN No. 6 junction connector.

        Junction Connector A Side
        Terminal No. (Symbol) Wiring Color Connected to
        H103-1 (GND) W-B Body ground
        H99-1 (CANH) R

        • Outer mirror control ECU assembly (front passenger side)*1

        • Outer mirror control ECU assembly (drive side)*2
        H99-2 (CANL) W
        H100-1 (CANH) G

        Main body ECU

        (multiplex network body ECU)
        H100-2 (CANL) W
        H101-1 (CANH)

        SB*1

        L*2

        		 Position control ECU and switch assembly
        H101-2 (CANL) W
        H102-1 (CANH) B

        • Outer mirror control ECU assembly (drive side)*1

        • Outer mirror control ECU assembly (front passenger side)*2
        H102-2 (CANL) W

        • *1: for LHD

        • *2: for RHD

  9. CAN NO. 7 JUNCTION CONNECTOR (for Bus 5)


    1. Check the CAN No. 7 junction connector.


      1. Connection diagram

        B001N49C17
        *a

        Front view of wire harness connector

        (to CAN No. 7 Junction Connector)

        		 *b to CAN No. 4 Junction Connector
        *c

        to Rear Television Camera Assembly

        (w/ Parking Assist Monitor System (w/o Parallel Parking Assist Function))

        		 *d to Power Management Control ECU

      2. Check the connection diagram of the components which are connected to the CAN No. 7 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        P36-1 (CANH) B CAN No. 4 junction connector
        P36-7 (CANL) W
        P36-2 (CANH) B Rear television camera assembly*
        P36-8 (CANL) W
        P36-3 (CANH) B Power management control ECU
        P36-9 (CANL) W

        *: w/ Parking Assist Monitor System (w/o Parallel Parking Assist Function)

  10. CAN NO. 8 JUNCTION CONNECTOR (for Bus 3)


    1. Check the CAN No. 8 junction connector.


      1. Connection diagram

        B001KQZC05
        *a

        Front view of wire harness connector

        (to CAN No. 8 Junction Connector)

        		 *b to Central Gateway ECU (Network Gateway ECU)
        *c

        to Radio Receiver Assembly

        (for Navigation Receiver Type)

        (for Radio and Display Type)

        		 *d

        to DCM (Telematics Transceiver)

        (w/ Manual (SOS) Switch)

      2. Check the connection diagram of the components which are connected to the CAN No. 8 junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        H190-8 (CANH) P Central gateway ECU (network gateway ECU)
        H190-19 (CANL) W
        H190-9 (CANH) G Central gateway ECU (network gateway ECU)
        H190-20 (CANL) W
        H190-10 (CANH) R Radio receiver assembly*2*3
        H190-21 (CANL) W
        H190-11 (CANH) L DCM (telematics transceiver)*1
        H190-22 (CANL) W

        *1: w/ Manual (SOS) Switch

        *2: for Navigation Receiver Type

        *3: for Radio and Display Type

  11. CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

    B001LCAC44
    *a

    Component without harness connected

    (Central Gateway ECU (Network Gateway ECU))

    		 - -

    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H188 central gateway ECU (network gateway ECU) connector.

    3. Measure the resistance according to the value(s) in the table below.

      B001M0DC25
      *a

      Front view of wire harness connector

      (to Central Gateway ECU (Network Gateway ECU))

      		 - -

    4. DLC3


      1. Disconnect the cable from the negative (-) auxiliary battery terminal.

      2. Measure the resistance according to the value(s) in the table below.

        B001LZZE01
      5. Text in Illustration
      *1 DLC3 - -

    5. ECM

      Refer to Terminals of ECU.



      1. Disconnect the cable from the negative (-) auxiliary battery terminal.

      2. Disconnect the A60 and D27 ECM connectors.

        B001M9DE01
      6. Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

      		 - -

  12. Measure the resistance according to the value(s) in the table below.

  13. COMBINATION METER ASSEMBLY

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H19 combination meter assembly connector.

      B001LC9E01
    14. Text in Illustration
    *a

    Front view of wire harness connector

    (to Combination Meter Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • POWER MANAGEMENT CONTROL ECU

    Refer to Terminals of ECU.

    Click here


    1. Bus 2 Branch Lines


      1. Disconnect the cable from the negative (-) auxiliary battery terminal.

      2. B001KODE03
    • Text in Illustration
    *a

    Rear view of wire harness connector

    (to Power Management Control ECU)

    • Disconnect the H4 power management control ECU connector.

  • Measure the resistance according to the value(s) in the table below.

  • Bus 5 Main Lines


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001KNDE02
    • Text in Illustration
    *a

    Rear view of wire harness connector

    (to Power Management Control ECU)

    Disconnect the H3 power management control ECU connector.

  • Measure the resistance according to the value(s) in the table below.

  • Sub Bus 12 Main Lines


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001KCEE02
    • Text in Illustration
    *a

    Rear view of wire harness connector

    (to Power Management Control ECU)

    Disconnect the H4 power management control ECU connector.

  • Measure the resistance according to the value(s) in the table below.

  • MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H16 and H17 main body ECU (multiplex network body ECU) connectors.

      B001L49E02
    • Text in Illustration
    *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Main Body ECU (Multiplex Network Body ECU))

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001M55E02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Skid Control ECU (Brake Booster with Master Cylinder Assembly))

    Disconnect the A61 skid control ECU (brake booster with master cylinder assembly) connector.

  • Measure the resistance according to the value(s) in the table below.

  • STEERING ANGLE SENSOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY)


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001KR9E02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Steering Angle Sensor (Spiral Cable with Sensor Sub-assembly))

    Disconnect the H29 steering angle sensor (spiral cable with sensor sub-assembly) connector.

  • Measure the resistance according to the value(s) in the table below.

  • YAW RATE AND ACCELERATION SENSOR


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001L5EE02
    • Text in Illustration
    *1 DLC3
    *a

    Front view of wire harness connector

    (to Yaw Rate and Acceleration Sensor)

    Disconnect the H87 yaw rate and acceleration sensor connector.

  • Measure the resistance according to the value(s) in the table below.

  • POWER STEERING ECU ASSEMBLY

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H25 and A26 power steering ECU assembly connectors.

      B001NESE01
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Power Steering ECU Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • AIRBAG SENSOR ASSEMBLY

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H84 airbag sensor assembly connector.

      B001L76E01
    • Text in Illustration
    *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Airbag Sensor Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H1 certification ECU (smart key ECU assembly) connector.

      B001N1AE02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Certification ECU (Smart Key ECU Assembly))

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • TRANSMISSION CONTROL ECU ASSEMBLY

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001LACE02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Transmission Control ECU Assembly)

    Disconnect the A21 and A22 transmission control ECU assembly connectors.

  • Measure the resistance according to the value(s) in the table below.

  • RADIO RECEIVER ASSEMBLY (for Navigation receiver type)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001L71E01
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Radio Receiver Assembly)

    Disconnect the H147 radio receiver assembly connector.

  • Measure the resistance according to the value(s) in the table below.

  • RADIO RECEIVER ASSEMBLY (for Radio and Display Type)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H164 and H162 radio receiver assembly connectors.

      B001L18E02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Radio Receiver Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • AIR CONDITIONING AMPLIFIER ASSEMBLY

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H85 air conditioning amplifier assembly connector.

      B001LCVE01
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Air Conditioning Amplifier Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • DRIVING SUPPORT ECU ASSEMBLY (w/ Lexus Safety System +)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the H185 driving support ECU assembly connector.

      B001LRTC08
    • *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Driving Support ECU Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Lexus Safety System +)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the k1 millimeter wave radar sensor assembly connector.

      B001MKKC17
    • *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Millimeter Wave Radar Sensor Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • OUTER MIRROR CONTROL ECU ASSEMBLY (Driver side)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001NFME02
    • Text in Illustration
    *A for LHD
    *B for RHD
    *a

    Front view of wire harness connector

    (to Outer Mirror Control ECU Assembly)

    Disconnect the K7 or J8 outer mirror control ECU assembly connector.

  • Measure the resistance according to the value(s) in the table below.

  • OUTER MIRROR CONTROL ECU ASSEMBLY (Front passenger side)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001NF9E02
    • Text in Illustration
    *A for RHD
    *B for LHD
    *a

    Front view of wire harness connector

    (to Outer Mirror Control ECU Assembly)

    Disconnect the K7 or J8 outer mirror control ECU assembly connector.

  • Measure the resistance according to the value(s) in the table below.

  • POSITION CONTROL ECU AND SWITCH ASSEMBLY (w/ Seat Position Memory for LHD)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the X4 and X5 position control ECU and switch assembly connectors.

      B001KHME02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Position Control ECU and Switch Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • POSITION CONTROL ECU AND SWITCH ASSEMBLY (w/ Seat Position Memory for RHD)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the W3 and W4 position control ECU and switch assembly connectors.

      B001MJBE02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to Position Control ECU and Switch Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • CLEARANCE WARNING ECU ASSEMBLY (w/ LEXUS Parking Assist-sensor System)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the A78 clearance warning ECU assembly connector.

      B001N09E02
    • Text in Illustration
    *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Clearance Warning ECU Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • DCM (TELEMATICS TRANSCEIVER) (w/ Manual (SOS) Switch)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001KVAE02
    • Text in Illustration
    *a

    Front view of wire harness connector

    (to DCM (Telematics Transceiver))

    Disconnect the H145 DCM (telematics transceiver) connector.

  • Measure the resistance according to the value(s) in the table below.

  • REAR TELEVISION CAMERA ASSEMBLY (w/ Parking Assist Monitor System (w/o Parallel Parking Assist Function))

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. Disconnect the V13 rear television camera assembly connector.

      B001N8UE02
    • Text in Illustration
    *1 DLC3 - -
    *a

    Front view of wire harness connector

    (to Rear Television Camera Assembly)

    		 - -

  • Measure the resistance according to the value(s) in the table below.

  • FORWARD RECOGNITION CAMERA (w/ Lexus Safety System +)

    Refer to Terminals of ECU.

    Click here


    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

    2. B001LP4C16
    • *1 DLC3
    *a

    Front view of wire harness connector

    (to Forward Recognition Camera)

    Disconnect the T13 forward recognition camera connector.

  • Measure the resistance according to the value(s) in the table below.