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.

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  • 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.

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


    1. Check the No. 1 CAN junction connector.


      1. Connection diagram

        B004FBQC03
        *a

        Front view of wire harness connector

        (to No. 1 CAN Junction Connector)

        		 *b to No. 2 CAN Junction Connector
        *c to Combination Meter Assembly *d to Central Gateway ECU (Network Gateway ECU)
        *e to Air Conditioning Amplifier Assembly *f

        to Stereo Component Equalizer Assembly

        (w/ ASC System)
        *g to Certification ECU (Smart Key ECU Assembly) *h to Hybrid Vehicle Control ECU Assembly
        *i to Power Steering ECU Assembly - -

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

        Terminal No. (Symbol) Wiring Color Connected to
        O104-1 (CANH) L

        No. 2 CAN junction connector

        (for Bus 2)
        O104-11 (CANL) B
        O104-2 (CANH) LG

        Combination meter assembly

        (for Bus 2)
        O104-12 (CANL) B
        O104-4 (CANH) BE

        Central gateway ECU (network gateway ECU)

        (for Bus 2)
        O104-14 (CANL) B
        O104-5 (CANH) P

        Air conditioning amplifier assembly

        (for Bus 2)
        O104-15 (CANL) B
        O104-6 (CANH) V

        Stereo component equalizer assembly*

        (for Bus 2)
        O104-16 (CANL) B
        O104-7 (CANH) W

        Certification ECU (smart key ECU assembly)

        (for Bus 2)
        O104-17 (CANL) B
        O104-8 (CANH) SB

        Hybrid vehicle control ECU assembly

        (for Bus 2)
        O104-18 (CANL) B
        O104-9 (CANH) G

        Power steering ECU assembly

        (for Bus 2)
        O104-19 (CANL) B

        • *: w/ ASC System

  2. NO. 2 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 2 CAN junction connector.


      1. Connection diagram

        B004FBQC04
        *a

        Front view of wire harness connector

        (to No. 2 CAN Junction Connector)

        		 *b to No. 1 CAN Junction Connector
        *c to Main Body ECU (Multiplex Network Body ECU) *d to ECM
        *e

        to Headlight Leveling ECU Assembly

        (for Single Beam Headlight)

        		 *f to Airbag ECU Assembly
        *g to Yaw Rate Sensor *h to Steering Sensor
        *i to Skid Control ECU Assembly - -

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

        Terminal No. (Symbol) Wiring Color Connected to
        O105-1 (CANH) L

        No. 1 CAN junction connector

        (for Bus 2)
        O105-11 (CANL) B
        O105-2 (CANH) Y

        Main body ECU (multiplex network body ECU)

        (for Bus 2)
        O105-12 (CANL) B
        O105-3 (CANH) R

        ECM

        (for Bus 2)
        O105-13 (CANL) B
        O105-4 (CANH) LG

        Headlight leveling ECU assembly*

        (for Bus 2)
        O105-14 (CANL) B
        O105-5 (CANH) BE

        Airbag ECU assembly

        (for Bus 2)
        O105-15 (CANL) B
        O105-6 (CANH) G

        Yaw rate sensor

        (for Bus 2)
        O105-16 (CANL) B
        O105-9 (CANH) P

        Steering sensor

        (for Bus 2)
        O105-19 (CANL) B
        O105-10 (CANH) SB

        Skid control ECU assembly

        (for Bus 2)
        O105-20 (CANL) B

        • *: for Single Beam Headlight

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


    1. Check the No. 5 CAN junction connector.


      1. Connection diagram

        B004FJ4C69
        *a

        Front view of wire harness connector

        (to No. 5 CAN Junction Connector)

        		 *b

        to Multiplex Tilt and Telescopic ECU

        (w/ Power Tilt and Power Telescopic System)
        *c to No. 14 CAN Junction Connector *d to Main Body ECU (Multiplex Network Body ECU)
        *e

        to Outer Mirror Control ECU Assembly (for Driver side)

        (w/ Seat Position Memory System)

        		 *f

        to Headlight ECU Sub-assembly

        (for Triple Beam Headlight)
        *g to Position Control ECU and Switch Assembly LH *h to Central Gateway ECU (Network Gateway ECU)
        *i to Radio Receiver Assembly - -

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

        Terminal No. (Symbol) Wiring Color Connected to
        O106-1 (CANH) BE

        Multiplex tilt and telescopic ECU*1

        (for Sub bus 1)
        O106-12 (CANL) B
        O106-2 (CANH) LG

        No. 14 CAN junction connector

        (for Sub bus 1)
        O106-13 (CANL) B
        O106-3 (CANH) P

        Main body ECU (multiplex network body ECU)

        (for Sub bus 1)
        O106-14 (CANL) B
        O106-4 (CANH) W

        Outer mirror control ECU assembly (for driver side)*2

        (for Sub bus 1)
        O106-15 (CANL) B
        O106-5 (CANH) V

        Headlight ECU sub-assembly*3

        (for Sub bus 1)
        O106-16 (CANL) B
        O106-6 (CANH) R

        Position control ECU and switch assembly LH

        (for Sub bus 1)
        O106-17 (CANL) B
        O106-7 (CANH) R

        Central gateway ECU (network gateway ECU)

        (for Bus 3)
        O106-18 (CANL) B
        O106-9 (CANH) BE

        Radio receiver assembly

        (for Bus 3)
        O106-20 (CANL) B
        O106-11 (CANH) V

        Central gateway ECU (network gateway ECU)

        (for Bus 3)
        O106-22 (CANL) B

        • *1: w/ Power Tilt and Power Telescopic System

        • *2: w/ Seat Position Memory System

        • *3: for Triple Beam Headlight

  4. NO. 11 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 11 CAN junction connector.

      Tech Tips

      Connectors that connect to the CAN junction connector can be distinguished by the color of their CAN bus lines. When the connectors have been disconnected from the CAN junction connector, reconnecting the connectors to non-original positions on the CAN junction connector does not affect system performance. However, it is preferred to reconnect the connectors to their original positions to avoid negative effects on the wiring such as tension on the wire harnesses, and to make future maintenance easier.


      1. Connection diagram

        B004F89C01
        *a

        Component with harness connected

        (No. 11 CAN Junction Connector)

        		 *b to Hybrid Vehicle Control ECU Assembly
        *c to No. 17 CAN Junction Connector *d

        to Absorber Control ECU

        (w/ AVS System)
        *e

        to Driving Support ECU Assembly

        (w/ Lexus Safety System +)

        		 - -

      2. Check the connection diagram of the components which are connected to the No. 11 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        O153-1 (CANH) V

        Hybrid vehicle control ECU assembly

        (for Bus 5)
        O153-2 (CANL) B
        O154-1 (CANH) LG

        No. 17 CAN junction connector

        (for Bus 5)
        O154-2 (CANL) B
        O155-1 (CANH) SB

        Absorber control ECU*1

        (for Bus 5)
        O155-2 (CANL) B
        O156-1 (CANH) G

        Driving support ECU assembly*2

        (for Bus 5)
        O156-2 (CANL) B

        • *1: w/ AVS System

        • *2: w/ Lexus Safety System +

  5. NO. 13 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 13 CAN junction connector.


      1. Connection diagram

        B004FJ4C71
        *a

        Front view of wire harness connector

        (to No. 13 CAN Junction Connector)

        		 *b to Hybrid Vehicle Control ECU Assembly
        *c to Skid Control ECU Assembly *d to ECM

      2. Check the connection diagram of the components which are connected to the No. 13 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        O162-1 (CANH) R

        Hybrid vehicle control ECU assembly

        (for Sub bus 15)
        O162-12 (CANL) B
        O162-2 (CANH) W

        Skid control ECU assembly

        (for Sub bus 15)
        O162-13 (CANL) B
        O162-3 (CANH) P

        ECM

        (for Sub bus 15)
        O162-14 (CANL) B

  6. NO. 14 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 14 CAN junction connector.


      1. Connection diagram

        B004FJ4C70
        *a

        Front view of wire harness connector

        (to No. 14 CAN Junction Connector)

        		 *b to No. 5 CAN Junction Connector
        *c to Position Control ECU and Switch Assembly RH *d

        to Outer Mirror Control ECU Assembly (for Front Passenger Side)

        (w/ Seat Position Memory System)
        *e to No. 1 CAN Junction Terminal - -

      2. Check the connection diagram of the components which are connected to the No. 14 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        T50-8 (CANH) LG

        No. 5 CAN junction connector

        (for Sub bus 1)
        T50-19 (CANL) B
        T50-9 (CANH) R

        Position control ECU and switch assembly RH

        (for Sub bus 1)
        T50-20 (CANL) B
        T50-10 (CANH) W

        Outer mirror control ECU assembly (for front passenger side)*

        (for Sub bus 1)
        T50-21 (CANL) B
        T50-11 (CANH) P

        No. 1 CAN junction terminal

        (for Sub bus 1)
        T50-22 (CANL) B

        • *: w/ Seat Position Memory System

  7. NO. 15 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 15 CAN junction connector.


      1. Connection diagram

        B004E4UC12
        *a

        Front view of wire harness connector

        (to No. 15 CAN Junction Connector)

        		 *b

        to Rear Television Camera Assembly

        (w/ Parking Assist Monitor System)
        *c to No. 17 CAN Junction Connector *d to Central Gateway ECU (Network Gateway ECU)
        *e

        to Blind Spot Monitor Sensor LH

        (w/ Blind Spot Monitor System)

        		 - -

      2. Check the connection diagram of the components which are connected to the No. 15 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        U61-2 (CANH) W

        Rear television camera assembly*1

        (for Bus 5)
        U61-8 (CANL) B
        U61-3 (CANH) BE

        No. 17 CAN junction connector

        (for Bus 5)
        U61-9 (CANL) B
        U61-4 (CANH) V

        Central gateway ECU (network gateway ECU)

        (for Bus 5)
        U61-10 (CANL) B
        U61-5 (CANH) R

        Blind spot monitor sensor LH*2

        (for Bus 5)
        U61-11 (CANL) B

        • *1: w/ Parking Assist Monitor System

        • *2: w/ Blind Spot Monitor System

  8. NO. 17 CAN JUNCTION CONNECTOR (for LHD)


    1. Check the No. 17 CAN junction connector.


      1. Connection diagram

        B004E4UC18
        *a

        Front view of wire harness connector

        (No. 17 CAN Junction Connector)

        		 *b to No. 11 CAN Junction Connector
        *c

        to Forward Recognition Camera

        (w/ Lexus Safety System +)

        		 *d

        to Millimeter Wave Radar Sensor Assembly

        (w/ Lexus Safety System +)
        *e

        to Clearance Warning ECU Assembly

        (w/ LEXUS Parking Assist-sensor System)

        		 *f to No. 15 CAN Junction Connector

      2. Check the connection diagram of the components which are connected to the No. 17 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        O172-1 (CANH) LG

        No. 11 CAN junction connector

        (for Bus 5)
        O172-7 (CANL) B
        O172-2 (CANH) R

        Forward recognition camera*1

        (for Bus 5)
        O172-8 (CANL) B
        O172-3 (CANH) L

        Millimeter wave radar sensor assembly*1

        (for Bus 5)
        O172-9 (CANL) B
        O172-5 (CANH) P

        Clearance warning ECU assembly*2

        (for Bus 5)
        O172-11 (CANL) B
        O172-6 (CANH) BE

        No. 15 CAN junction connector

        (for Bus 5)
        O172-12 (CANL) B

        • *1: w/ Lexus Safety System +

        • *2: w/ LEXUS Parking Assist-sensor System

  9. NO. 1 CAN JUNCTION TERMINAL (for LHD)


    1. Check the No. 1 CAN junction terminal.


      1. Connection diagram

        B004FF9C47
        *a

        Front view of wire harness connector

        (to No. 1 CAN Junction Terminal)

        		 *b

        to No. 14 CAN Junction Connector

        (for Sub Bus 1)

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

        Terminal No. (Symbol) Wiring Color Connected to
        O101-3 (CANH) P

        No. 14 CAN junction connector

        (for Sub bus 1)
        O101-2 (CANL) B

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


    1. Check the No. 1 CAN junction connector.


      1. Connection diagram

        B004FBQC05
        *a

        Front view of wire harness connector

        (to No. 1 CAN Junction Connector)

        		 *b to No. 2 CAN Junction Connector
        *c to Combination Meter Assembly *d to Airbag ECU Assembly
        *e to Yaw Rate Sensor *f to Skid Control ECU Assembly
        *g to Steering Sensor *h

        to Stereo Component Equalizer Assembly

        (w/ ASC System)

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

        Terminal No. (Symbol) Wiring Color Connected to
        O104-1 (CANH) L

        No. 2 CAN junction connector

        (for Bus 2)
        O104-11 (CANL) B
        O104-2 (CANH) LG

        Combination meter assembly

        (for Bus 2)
        O104-12 (CANL) B
        O104-4 (CANH) BE

        Airbag ECU assembly

        (for Bus 2)
        O104-14 (CANL) B
        O104-5 (CANH) G

        Yaw rate sensor

        (for Bus 2)
        O104-15 (CANL) B
        O104-6 (CANH) SB

        Skid control ECU assembly

        (for Bus 2)
        O104-16 (CANL) B
        O104-7 (CANH) P

        Steering sensor

        (for Bus 2)
        O104-17 (CANL) B
        O104-9 (CANH) V

        Stereo component equalizer assembly*

        (for Bus 2)
        O104-19 (CANL) B

        • *: w/ ASC System

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


    1. Check the No. 2 CAN junction connector.


      1. Connection diagram

        B004FBQC06
        *a

        Front view of wire harness connector

        (to No. 2 CAN Junction Connector)

        		 *b to No. 1 CAN Junction Connector
        *c to Main Body ECU (Multiplex Network Body ECU) *d to ECM
        *e

        to Headlight Leveling ECU Assembly

        (for Single Beam Headlight)

        		 *f to Central Gateway ECU (Network Gateway ECU)
        *g to Air Conditioning Amplifier Assembly *h to Hybrid Vehicle Control ECU Assembly
        *i to Certification ECU (Smart Key ECU Assembly) *j to Power Steering ECU Assembly

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

        Terminal No. (Symbol) Wiring Color Connected to
        O105-1 (CANH) L

        No. 1 CAN junction connector

        (for Bus 2)
        O105-11 (CANL) B
        O105-2 (CANH) Y

        Main body ECU (multiplex network body ECU)

        (for Bus 2)
        O105-12 (CANL) B
        O105-3 (CANH) R

        ECM

        (for Bus 2)
        O105-13 (CANL) B
        O105-4 (CANH) LG

        Headlight leveling ECU assembly*

        (for Bus 2)
        O105-14 (CANL) B
        O105-5 (CANH) BE

        Central gateway ECU (network gateway ECU)

        (for Bus 2)
        O105-15 (CANL) B
        O105-6 (CANH) P

        Air conditioning amplifier assembly

        (for Bus 2)
        O105-16 (CANL) B
        O105-7 (CANH) SB

        Hybrid vehicle control ECU assembly

        (for Bus 2)
        O105-17 (CANL) B
        O105-8 (CANH) W

        Certification ECU (smart key ECU assembly)

        (for Bus 2)
        O105-18 (CANL) B
        O105-10 (CANH) G

        Power steering ECU assembly

        (for Bus 2)
        O105-20 (CANL) B

        • *: for Single Beam Headlight

  12. NO. 6 CAN JUNCTION CONNECTOR (for RHD)


    1. Check the No. 6 CAN junction connector.


      1. Connection diagram

        B004FJ4C72
        *a

        Front view of wire harness connector

        (to No. 6 CAN Junction Connector)

        		 *b

        to Multiplex Tilt and Telescopic ECU

        (w/ Power Tilt and Power Telescopic System)
        *c to No. 14 CAN Junction Connector *d to Main Body ECU (Multiplex Network Body ECU)
        *e

        to Outer Mirror Control ECU Assembly (for Front Passenger Side)

        (w/ Seat Position Memory System)

        		 *f

        to Headlight ECU Sub-assembly

        (for Triple Beam Headlight)
        *g to Position Control ECU and Switch Assembly LH *h to Central Gateway ECU (Network Gateway ECU)
        *i to Radio Receiver Assembly - -

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

        Terminal No. (Symbol) Wiring Color Connected to
        O107-1 (CANH) BE

        Multiplex tilt and telescopic ECU*1

        (for Sub bus 1)
        O107-12 (CANL) B
        O107-2 (CANH) LG

        No. 14 CAN junction connector

        (for Sub bus 1)
        O107-13 (CANL) B
        O107-3 (CANH) P

        Main body ECU (multiplex network body ECU)

        (for Sub bus 1)
        O107-14 (CANL) B
        O107-4 (CANH) W

        Outer mirror control ECU assembly (for front passenger side)*2

        (for Sub bus 1)
        O107-15 (CANL) B
        O107-5 (CANH) V

        Headlight ECU sub-assembly*3

        (for Sub bus 1)
        O107-16 (CANL) B
        O107-6 (CANH) R

        Position control ECU and switch assembly LH

        (for Sub bus 1)
        O107-17 (CANL) B
        O107-7 (CANH) R

        Central gateway ECU (network gateway ECU)

        (for Bus 3)
        O107-18 (CANL) B
        O107-9 (CANH) BE

        Radio receiver assembly

        (for Bus 3)
        O107-20 (CANL) B
        O107-11 (CANH) V

        Central gateway ECU (network gateway ECU)

        (for Bus 3)
        O107-22 (CANL) B

        • *1: w/ Power Tilt and Power Telescopic System

        • *2: w/ Seat Position Memory System

        • *3: for Triple Beam Headlight

  13. NO. 12 CAN JUNCTION CONNECTOR (for RHD)


    1. Check the No. 12 CAN junction connector.

      Tech Tips

      Connectors that connect to the CAN junction connector can be distinguished by the color of their CAN bus lines. When the connectors have been disconnected from the CAN junction connector, reconnecting the connectors to non-original positions on the CAN junction connector does not affect system performance. However, it is preferred to reconnect the connectors to their original positions to avoid negative effects on the wiring such as tension on the wire harnesses, and to make future maintenance easier.


      1. Connection diagram

        B004G95C01
        *a

        Component with harness connected

        (No. 12 CAN Junction Connector)

        		 *b to No. 16 CAN Junction Connector
        *c

        to Forward Recognition Camera

        (w/ Lexus Safety System +)

        		 *d

        to Millimeter Wave Radar Sensor Assembly

        (w/ Lexus Safety System +)
        *e

        to Clearance Warning ECU Assembly

        (w/ LEXUS Parking Assist-sensor System)

        		 *f to No. 15 CAN Junction Connector

      2. Check the connection diagram of the components which are connected to the No. 12 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        O157-1 (CANH) LG

        No. 16 CAN junction connector

        (for Bus 5)
        O157-2 (CANL) B
        O158-1 (CANH) R

        Forward recognition camera*1

        (for Bus 5)
        O158-2 (CANL) B
        O159-1 (CANH) L

        Millimeter wave radar sensor assembly*1

        (for Bus 5)
        O159-2 (CANL) B
        O160-1 (CANH) P

        Clearance warning ECU assembly*2

        (for Bus 5)
        O160-2 (CANL) B
        O161-1 (CANH) BE

        No. 15 CAN junction connector

        (for Bus 5)
        O161-2 (CANL) B

        • *1: w/ Lexus Safety System +

        • *2: w/ LEXUS Parking Assist-sensor System

  14. NO. 14 CAN JUNCTION CONNECTOR (for RHD)


    1. Check the No. 14 CAN junction connector.


      1. Connection diagram

        B004FJ4C73
        *a

        Front view of wire harness connector

        (to No. 14 CAN Junction Connector)

        		 *b to Hybrid Vehicle Control ECU Assembly
        *c to Skid Control ECU Assembly *d to ECM
        *e to No. 6 CAN Junction Connector *f to Position Control ECU and Switch Assembly RH
        *g

        to Outer Mirror Control ECU Assembly (for Driver side)

        (w/ Seat Position Memory System)

        		 *h to No. 1 CAN Junction Terminal

      2. Check the connection diagram of the components which are connected to the No. 14 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        T50-1 (CANH) R

        Hybrid vehicle control ECU assembly

        (for Sub bus 15)
        T50-12 (CANL) B
        T50-2 (CANH) W

        Skid control ECU assembly

        (for Sub bus 15)
        T50-13 (CANL) B
        T50-3 (CANH) P

        ECM

        (for Sub bus 15)
        T50-14 (CANL) B
        T50-8 (CANH) LG

        No. 6 CAN junction connector

        (for Sub bus 1)
        T50-19 (CANL) B
        T50-9 (CANH) R

        Position control ECU and switch assembly RH

        (for Sub bus 1)
        T50-20 (CANL) B
        T50-10 (CANH) W

        Outer mirror control ECU assembly (for driver side)*

        (for Sub bus 1)
        T50-21 (CANL) B
        T50-11 (CANH) P

        No. 1 CAN junction terminal

        (for Sub bus 1)
        T50-22 (CANL) B

        • *: w/ Seat Position Memory System

  15. NO. 15 CAN JUNCTION CONNECTOR (for RHD)


    1. Check the No. 15 CAN junction connector.


      1. Connection diagram

        B004E4UC13
        *a

        Front view of wire harness connector

        (to No. 15 CAN Junction Connector)

        		 *b

        to Rear Television Camera Assembly

        (w/ Parking Assist Monitor System)
        *c to No. 12 CAN Junction Connector *d to Hybrid Vehicle Control ECU Assembly
        *e

        to Blind Spot Monitor Sensor LH

        (w/ Blind Spot Monitor System)

        		 - -

      2. Check the connection diagram of the components which are connected to the No. 15 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        U61-2 (CANH) W

        Rear television camera assembly*1

        (for Bus 5)
        U61-8 (CANL) B
        U61-3 (CANH) BE

        No. 12 CAN junction connector

        (for Bus 5)
        U61-9 (CANL) B
        U61-4 (CANH) V

        Hybrid vehicle control ECU assembly

        (for Bus 5)
        U61-10 (CANL) B
        U61-5 (CANH) R

        Blind spot monitor sensor LH*2

        (for Bus 5)
        U61-11 (CANL) B

        • *1: w/ Parking Assist Monitor System

        • *2: w/ Blind Spot Monitor System

  16. NO. 16 CAN JUNCTION CONNECTOR (for RHD)


    1. Check the No. 16 CAN junction connector.


      1. Connection diagram

        B004E4UC19
        *a

        Front view of wire harness connector

        (No. 16 CAN Junction Connector)

        		 *b

        to Absorber Control ECU

        (w/ AVS System)
        *c

        to Driving Support ECU Assembly

        (w/ Lexus Safety System +)

        		 *d to Central Gateway ECU (Network Gateway ECU)
        *e to No. 12 CAN Junction Connector - -

      2. Check the connection diagram of the components which are connected to the No. 16 CAN junction connector.

        Terminal No. (Symbol) Wiring Color Connected to
        O171-1 (CANH) SB

        Absorber control ECU*1

        (for Bus 5)
        O171-7 (CANL) B
        O171-2 (CANH) G

        Driving support ECU assembly*2

        (for Bus 5)
        O171-8 (CANL) B
        O171-3 (CANH) GR

        Central gateway ECU (network gateway ECU)

        (for Bus 5)
        O171-9 (CANL) B
        O171-4 (CANH) LG

        No. 12 CAN junction connector

        (for Bus 5)
        O171-10 (CANL) B

        • *1: w/ AVS System

        • *2: w/ Lexus Safety System +

  17. NO. 1 CAN JUNCTION TERMINAL (for RHD)


    1. Check the No. 1 CAN junction terminal.


      1. Connection diagram

        B004FF9C47
        *a

        Front view of wire harness connector

        (to No. 1 CAN Junction Terminal)

        		 *b

        to No. 14 CAN Junction Connector

        (for Sub Bus 1)

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

        Terminal No. (Symbol) Wiring Color Connected to
        O101-3 (CANH) P

        No. 14 CAN junction connector

        (for Sub bus 1)
        O101-2 (CANL) B

  18. DLC3


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

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

      B004F7BC11
      *1 DLC3 - -

    3. CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

      B004GS3C52
      4. *a

      Component without harness connected

      (Central Gateway ECU (Network Gateway ECU))

      		 - -

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

  2. Disconnect the O145 central gateway ECU (network gateway ECU) connector.

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

    B004EO3C33
    *a

    Front view of wire harness connector

    (to Central Gateway ECU (Network Gateway ECU))

    		 - -

    • *1: for LHD

    • *2: for RHD

  4. ECM

    Refer to Terminals of ECU.

    Click here


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

    2. Disconnect the A72 and F6 ECM connectors.

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

      B004GUWC98
    5. *a

    Front view of wire harness connector

    (to ECM)

    		 - -

  • HYBRID VEHICLE CONTROL ECU ASSEMBLY

    Refer to Terminals of ECU.

    Click here


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

    2. Disconnect the O142 hybrid vehicle control ECU assembly connector.

    3. B004EV4C97
    • *a

    Rear view of wire harness connector

    (to Hybrid Vehicle Control ECU Assembly)

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

  • Disconnect the O141 hybrid vehicle control ECU assembly connector.

  • B004G18C57
    • *a

    Rear view of wire harness connector

    (to Hybrid Vehicle Control ECU Assembly)

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

  • COMBINATION METER ASSEMBLY

    Refer to Terminals of ECU.

    Click here


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

    2. Disconnect the O3 combination meter assembly connector.

    3. B004EYKC74
    • *a

    Front view of wire harness connector

    (to Combination Meter Assembly)

    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 O1 and O2 main body ECU (multiplex network body ECU) connectors.

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

      B004GFLC24
    • *1 DLC3 - -
    *a

    Front view of wire harness connector

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

    		 - -

  • SKID CONTROL ECU ASSEMBLY

    Refer to Terminals of ECU.

    Click here


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

    2. Disconnect the A23 skid control ECU assembly connector.

    3. B004GDMC05
    • *a

    Front view of wire harness connector

    (to Skid Control ECU Assembly)

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

  • STEERING SENSOR


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

    2. Disconnect the O28 steering sensor connector.

    3. B004EE6C13
    • *a

    Front view of wire harness connector

    (to Steering Sensor)

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

  • YAW RATE SENSOR

    B004EDYC11
    • *a

    Component without harness connected

    (Yaw Rate Sensor)

    		 - -

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

    2. Disconnect the O81 yaw rate sensor connector.

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

      B004FMQC03
      *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      		 - -

    4. POWER STEERING ECU ASSEMBLY

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the A18 power steering ECU assembly connector.

      3. B004GIAC69
      5. *a

      Front view of wire harness connector

      (to Power Steering ECU Assembly)

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

    5. AIRBAG ECU ASSEMBLY

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the O50 airbag ECU assembly connector.

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

        B004GGMC12
      6. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Airbag ECU Assembly)

      		 - -

    6. 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 O6 certification ECU (smart key ECU assembly) connector.

      3. B004GTDC27
      7. *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.

    7. RADIO RECEIVER ASSEMBLY

      Refer to Terminals of ECU.



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

      2. Disconnect the O147 radio receiver assembly connector.

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

        B004FX2C05
      8. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      		 - -

    8. AIR CONDITIONING AMPLIFIER ASSEMBLY

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the O9 and O10 air conditioning amplifier assembly connectors.

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

        B004FVMC05
      9. *a

      Front view of wire harness connector

      (to Air Conditioning Amplifier Assembly)

      		 - -

    9. HEADLIGHT LEVELING ECU ASSEMBLY (for Single Beam Headlight)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the A61 headlight leveling ECU assembly connector.

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

        B004ER7C08
      10. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Headlight Leveling ECU Assembly)

      		 - -

    10. HEADLIGHT ECU SUB-ASSEMBLY (for Triple Beam Headlight)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the A36 headlight ECU sub-assembly connector.

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

        B004E8VC02
      11. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Headlight ECU Sub-assembly)

      		 - -

    11. OUTER MIRROR CONTROL ECU ASSEMBLY (for Driver Side) (w/ Seat Position Memory System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the R12 or S12 outer mirror control ECU assembly (for driver side) connector.

      3. B004GB7C32
      12. *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Outer Mirror Control ECU Assembly (for Driver Side))

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

    12. OUTER MIRROR CONTROL ECU ASSEMBLY (for Front Passenger Side) (w/ Seat Position Memory System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the R12 or S12 outer mirror control ECU assembly (for front passenger side) connector.

      3. B004GB7C33
      13. *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Outer Mirror Control ECU Assembly (for Front Passenger Side))

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

    13. POSITION CONTROL ECU AND SWITCH ASSEMBLY LH

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the b4 and b5 position control ECU and switch assembly LH connectors.

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

        B004E40C31
      14. *a

      Front view of wire harness connector

      (to Position Control ECU and Switch Assembly LH)

      		 - -

    14. POSITION CONTROL ECU AND SWITCH ASSEMBLY RH

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the a4 and a5 position control ECU and switch assembly RH connectors.

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

        B004E40C32
      15. *a

      Front view of wire harness connector

      (to Position Control ECU and Switch Assembly RH)

      		 - -

    15. MULTIPLEX TILT AND TELESCOPIC ECU (w/ Power Tilt and Power Telescopic System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the O18 multiplex tilt and telescopic ECU connector.

      3. B004GMNC52
      16. *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

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

    16. BLIND SPOT MONITOR SENSOR LH (w/ Blind Spot Monitor System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the U47 blind spot monitor sensor LH connector.

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

        B004EC2C15
      17. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor LH)

      		 - -

    17. 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 Q2 driving support ECU assembly connector.

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

        B004ESOC11
      18. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Driving Support ECU Assembly)

      		 - -

    18. 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 B9 millimeter wave radar sensor assembly connector.

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

        B004ENZC20
      19. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Millimeter Wave Radar Sensor Assembly)

      		 - -

    19. 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 O43 clearance warning ECU assembly connector.

      3. B004GDUC07
      20. *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.

    20. 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. Disconnect the W18 forward recognition camera connector.

      3. B004FY2C19
      21. *1 DLC3
      *a

      Front view of wire harness connector

      (to Forward Recognition Camera)

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

    21. ABSORBER CONTROL ECU (w/ AVS System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the O38 absorber control ECU connector.

      3. B004EQDC07
      22. *1 DLC3
      *a

      Front view of wire harness connector

      (to Absorber Control ECU)

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

    22. STEREO COMPONENT EQUALIZER ASSEMBLY (w/ ASC System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the O35 stereo component equalizer assembly connector.

      3. B004FDTC21
      23. *a

      Front view of wire harness connector

      (to Stereo Component Equalizer Assembly)

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

    23. REAR TELEVISION CAMERA ASSEMBLY (w/ Parking Assist Monitor System)

      Refer to Terminals of ECU.

      Click here


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

      2. Disconnect the z22 rear television camera assembly connector.

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

        B004EHQC09
      24. *1 DLC3 - -
      *a

      Front view of wire harness connector

      (to Rear Television Camera Assembly)

      		 - -