CAN COMMUNICATION SYSTEM(w/o Toyota Safety Sense) TERMINALS OF ECU

Tech Tips

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note


      • Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or any doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

      • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

  2. JUNCTION CONNECTOR (except GRMN)


    1. NO. 1 JUNCTION CONNECTOR (for LHD)

      B0047MJE03
      Text in Illustration
      *a to ECM (V Bus) *b to Skid Control ECU (Brake Actuator Assembly) (V Bus)
      *c to Main Body ECU (Multiplex Network Body ECU) (V Bus) *d to Power Steering ECU Assembly (V Bus)
      *e to DLC3 (V Bus) *f to No. 2 Junction Connector (V Bus)
      *g to Engine Stop and Start ECU (V Bus)*1 - -
      Terminal No. (Symbol) Wiring Color Connect to
      A61-9 (CANH) L ECM (V Bus)
      A61-20 (CANL) W
      A61-10 (CANH) G Skid Control ECU (Brake Actuator Assembly) (V Bus)
      A61-21 (CANL) W
      F82-1 (CANH) R Main Body ECU (Multiplex Network Body ECU) (V Bus)
      F82-12 (CANL) W
      F82-2 (CANH) LG Power Steering ECU Assembly (V Bus)
      F82-13 (CANL) W
      F82-3 (CANH) GR DLC3 (V Bus)
      F82-14 (CANL) W
      F82-4 (CANH) SB No. 2 Junction Connector (V Bus)
      F82-15 (CANL) W
      F82-5 (CANH) BE Engine Stop and Start ECU (V Bus)*1
      F82-16 (CANL) W

      • *1: w/ Stop and Start System

    2. NO. 1 JUNCTION CONNECTOR (for RHD)

      B0047ZQE03
      Text in Illustration
      *a to ECM (V Bus) *b to Skid Control ECU (Brake Actuator Assembly) (V Bus)
      *c to Main Body ECU (Multiplex Network Body ECU) (V Bus) *d to No. 2 Junction Connector (V Bus)
      *e to Engine Stop and Start ECU (V Bus)*1 - -
      Terminal No. (Symbol) Wiring Color Connect to
      A61-9 (CANH) L ECM (V Bus)
      A61-20 (CANL) W
      A61-10 (CANH) G Skid Control ECU (Brake Actuator Assembly) (V Bus)
      A61-21 (CANL) W
      F82-1 (CANH) R Main Body ECU (Multiplex Network Body ECU) (V Bus)
      F82-12 (CANL) W
      F82-4 (CANH) SB No. 2 Junction Connector (V Bus)
      F82-15 (CANL) W
      F82-5 (CANH) BE Engine Stop and Start ECU (V Bus)*1
      F82-16 (CANL) W

      • *1: w/ Stop and Start System

    3. NO. 2 JUNCTION CONNECTOR (for LHD)

      B00473LE02
      Text in Illustration
      *a to Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)*1 *b to Certification ECU (smart key ECU assembly) (V Bus)*2
      *c to Center Airbag Sensor Assembly (V Bus) *d to Radio and Display Receiver Assembly (V Bus)*3
      *e to Combination Meter Assembly (V Bus) *f to Air Conditioning Amplifier Assembly (V Bus)*4
      *g to No. 1 Junction Connector (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      F83-1 (CANH) P Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)*1
      F83-12 (CANL) W
      F83-3 (CANH) L Certification ECU (smart key ECU assembly) (V Bus)*2
      F83-14 (CANL) W
      F83-4 (CANH) B Center Airbag Sensor Assembly (V Bus)
      F83-15 (CANL) W
      F83-5 (CANH) BE Radio and Display Receiver Assembly (V Bus)*3
      F83-16 (CANL) W
      F83-7 (CANH) G Combination Meter Assembly (V Bus)
      F83-18 (CANL) W
      F83-8 (CANH) V Air Conditioning Amplifier Assembly (V Bus)*4
      F83-19 (CANL) W
      F83-10 (CANH) SB No. 1 Junction Connector (V Bus)
      F83-21 (CANL) W

      • *1: w/ VSC

      • *2: w/ Entry and Start System

      • *3: w/ Display

      • *4: w/ Air Conditioning System or PTC Heater

    4. NO. 2 JUNCTION CONNECTOR (for RHD)

      B0047OUE02
      Text in Illustration
      *a to Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)*1 *b to Certification ECU (Smart Key ECU) (V Bus)*2
      *c to Center Airbag Sensor Assembly (V1 Bus) *d to Radio and Display Receiver Assembly (V Bus)*3
      *e to Power Steering ECU Assembly (V Bus) *f to Combination Meter Assembly (V Bus)
      *g to Air Conditioning Amplifier Assembly (V Bus)*4 *h to No. 1 Junction Connector (V Bus)
      *i to DLC3 (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      F83-1 (CANH) P Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)*1
      F83-12 (CANL) W
      F83-3 (CANH) L Certification ECU (Smart Key ECU) (V Bus)*2
      F83-14 (CANL) W
      F83-4 (CANH) B Center Airbag Sensor Assembly (V Bus)
      F83-15 (CANL) W
      F83-5 (CANH) BE Radio and Display Receiver Assembly (V Bus)*3
      F83-16 (CANL) W
      F83-6 (CANH) LG Power Steering ECU Assembly (V Bus)
      F83-17 (CANL) W
      F83-7 (CANH) G Combination Meter Assembly (V Bus)
      F83-18 (CANL) W
      F83-8 (CANH) V Air Conditioning Amplifier Assembly (V Bus)*4
      F83-19 (CANL) W
      F83-10 (CANH) SB No. 1 Junction Connector (V Bus)
      F83-21 (CANL) W
      F83-11 (CANH) GR DLC3 (V Bus)
      F83-22 (CANL) W

      • *1: w/ VSC

      • *2: w/ Entry and Start System

      • *3: w/ Display

      • *4: w/ Air Conditioning System

  3. JUNCTION CONNECTOR (for GRMN)


    1. NO. 1 JUNCTION CONNECTOR (for LHD)

      B0047MJE03
      Text in Illustration
      *a to Network Gateway ECU (V Bus) *b to Skid Control ECU (Brake Actuator Assembly) (V Bus)
      *c to Main Body ECU (Multiplex Network Body ECU) (V Bus) *d to Power Steering ECU Assembly (V Bus)
      *e to DLC3 (V Bus) *f to No. 2 Junction Connector (V Bus)
      *g to Option connector (bus buffer ECU) (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      A61-9 (CANH) L Network Gateway ECU (V Bus)
      A61-20 (CANL) W
      A61-10 (CANH) G Skid Control ECU (Brake Actuator Assembly) (V Bus)
      A61-21 (CANL) W
      F82-1 (CANH) R Main Body ECU (Multiplex Network Body ECU) (V Bus)
      F82-12 (CANL) W
      F82-2 (CANH) LG Power Steering ECU Assembly (V Bus)
      F82-13 (CANL) W
      F82-3 (CANH) GR DLC3 (V Bus)
      F82-14 (CANL) W
      F82-4 (CANH) SB No. 2 Junction Connector (V Bus)
      F82-15 (CANL) W
      F82-5 (CANH) BE Option connector (bus buffer ECU) (V Bus)
      F82-16 (CANL) W
    2. NO. 1 JUNCTION CONNECTOR (for RHD)

      B0047ZQE03
      Text in Illustration
      *a to Network Gateway ECU (V Bus) *b to Skid Control ECU (Brake Actuator Assembly) (V Bus)
      *c to Main Body ECU (Multiplex Network Body ECU) (V Bus) *d to No. 2 Junction Connector (V Bus)
      *e to Option connector (bus buffer ECU) (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      A61-9 (CANH) L Network Gateway ECU (V Bus)
      A61-20 (CANL) W
      A61-10 (CANH) G Skid Control ECU (Brake Actuator Assembly) (V Bus)
      A61-21 (CANL) W
      F82-1 (CANH) R Main Body ECU (Multiplex Network Body ECU) (V Bus)
      F82-12 (CANL) W
      F82-4 (CANH) SB No. 2 Junction Connector (V Bus)
      F82-15 (CANL) W
      F82-5 (CANH) BE Option connector (bus buffer ECU) (V Bus)
      F82-16 (CANL) W
    3. NO. 2 JUNCTION CONNECTOR (for LHD)

      B00473LE02
      Text in Illustration
      *a to Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus) *b to Certification ECU (smart key ECU assembly) (V Bus)
      *c to Center Airbag Sensor Assembly (V Bus) *d to Radio and Display Receiver Assembly (V Bus)
      *e to Combination Meter Assembly (V Bus) *f to Air Conditioning Amplifier Assembly (V Bus)
      *g to No. 1 Junction Connector (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      F83-1 (CANH) P Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)
      F83-12 (CANL) W
      F83-3 (CANH) L Certification ECU (smart key ECU assembly) (V Bus)
      F83-14 (CANL) W
      F83-4 (CANH) B Center Airbag Sensor Assembly (V Bus)
      F83-15 (CANL) W
      F83-5 (CANH) BE Radio and Display Receiver Assembly (V Bus)
      F83-16 (CANL) W
      F83-7 (CANH) G Combination Meter Assembly (V Bus)
      F83-18 (CANL) W
      F83-8 (CANH) V Air Conditioning Amplifier Assembly (V Bus)
      F83-19 (CANL) W
      F83-10 (CANH) SB No. 1 Junction Connector (V Bus)
      F83-21 (CANL) W
    4. NO. 2 JUNCTION CONNECTOR (for RHD)

      B0047OUE02
      Text in Illustration
      *a to Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus) *b to Certification ECU (Smart Key ECU) (V Bus)
      *c to Center Airbag Sensor Assembly (V Bus) *d to Radio and Display Receiver Assembly (V Bus)
      *e to Power Steering ECU Assembly (V Bus) *f to Combination Meter Assembly (V Bus)
      *g to Air Conditioning Amplifier Assembly (V Bus) *h to No. 1 Junction Connector (V Bus)
      *i to DLC3 (V Bus) - -
      Terminal No. (Symbol) Wiring Color Connect to
      F83-1 (CANH) P Steering Angle Sensor (Spiral Cable Sub-assembly) (V Bus)
      F83-12 (CANL) W
      F83-3 (CANH) L Certification ECU (Smart Key ECU) (V Bus)
      F83-14 (CANL) W
      F83-4 (CANH) B Center Airbag Sensor Assembly (V Bus)
      F83-15 (CANL) W
      F83-5 (CANH) BE Radio and Display Receiver Assembly (V Bus)
      F83-16 (CANL) W
      F83-6 (CANH) LG Power Steering ECU Assembly (V Bus)
      F83-17 (CANL) W
      F83-7 (CANH) G Combination Meter Assembly (V Bus)
      F83-18 (CANL) W
      F83-8 (CANH) V Air Conditioning Amplifier Assembly (V Bus)
      F83-19 (CANL) W
      F83-10 (CANH) SB No. 1 Junction Connector (V Bus)
      F83-21 (CANL) W
      F83-11 (CANH) GR DLC3 (V Bus)
      F83-22 (CANL) W
  4. CHECK DLC3

    B0045QJE03

    1. Turn the ignition switch off.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F4-6 (CANH) - F4-14 (CANL) GR - W Ignition switch off 54 to 69 Ω
      F4-6 (CANH) - F4-16 (BAT) GR - BE Ignition switch off 6 kΩ or higher
      F4-14 (CANL) - F4-16 (BAT) W - BE Ignition switch off 6 kΩ or higher
      F4-6 (CANH) - F4-4 (CG) GR - W-B Ignition switch off 200 Ω or higher
      F4-14 (CANL) - F4-4 (CG) W - W-B Ignition switch off 200 Ω or higher
  5. CHECK ECM (for 1KR-FE)

    B004828E02

    1. Disconnect the A93 ECM connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A93-26 (CANH) - A93-25 (CANL) L - W Ignition switch off 108 to 132 Ω
      A93-26 (CANH) - A93-2 (+B) L - B Ignition switch off 6 kΩ or higher
      A93-25 (CANL) - A93-2 (+B) W - B Ignition switch off 6 kΩ or higher
      A93-26 (CANH) - A93-4 (E1) L - W-B Ignition switch off 200 Ω or higher
      A93-25 (CANL) - A93-4 (E1) W - W-B Ignition switch off 200 Ω or higher
  6. CHECK ECM (for 2NR-FKE)

    B0047ERE01
    Text in Illustration
    *A for RHD *B for LHD

    1. Disconnect the A58 ECM and B118*1 or B112*2 ECM connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A58-13 (CANH) - A58-26 (CANL) L - W Ignition switch off 108 to 132 Ω
      A58-13 (CANH) - A58-2 (+B) L - B Ignition switch off 6 kΩ or higher
      A58-26 (CANL) - A58-2 (+B) W - B Ignition switch off 6 kΩ or higher

      A58-13 (CANH) - B118-59 (E1)*1

      A58-13 (CANH) - B112-59 (E1)*2

      L - W-B Ignition switch off 200 Ω or higher

      A58-26 (CANL) - B118-59 (E1)*1

      A58-26 (CANL) - B112-59 (E1)*2

      W - W-B Ignition switch off 200 Ω or higher

      • *1: for RHD

      • *2: for LHD

  7. CHECK ECM (for 1ND-TV without DPF)

    B0045DFE02

    1. Disconnect the A59 ECM connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A59-3 (CANH) - A59-4 (CANL) L - W Ignition switch off 108 to 132 Ω
      A59-3 (CANH) - A59-1 (+B) L - B Ignition switch off 6 kΩ or higher
      A59-4(CANL) - A59-1 (+B) W - B Ignition switch off 6 kΩ or higher
      A59-3 (CANH) - A59-2 (E1) L - W-B Ignition switch off 200 Ω or higher
      A59-4 (CANL) - A59-2 (E1) W - W-B Ignition switch off 200 Ω or higher
  8. CHECK ECM (for 1ND-TV with DPF)

    B0045FLE02
    Text in Illustration
    *A for RHD *B for LHD

    1. Disconnect the A108 ECM connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring color Switch Condition Specified Condition
      A108-26 (CANH) - A108-25 (CANL) L - W Ignition switch off 108 to 132 Ω
      A108-26 (CANH) - A108-2 (+B) L - B Ignition switch off 6 kΩ or higher
      A108-25 (CANL) - A108-2 (+B) W - B Ignition switch off 6 kΩ or higher
      A108-26 (CANH) - A108-4 (E1) L - W-B Ignition switch off 200 Ω or higher
      A108-25 (CANL) - A108-4 (E1) W - W-B Ignition switch off 200 Ω or higher
  9. CHECK ECM (for 2ZR-FE)

    B0046PDE03

    1. Disconnect the A116 ECM connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A116-21 (CANN) - A116-9 (CANP) L - W Ignition switch off 108 to 132 Ω
      A116-21 (CANN) - A116-36 (+B) L - B Ignition switch off 6 kΩ or higher
      A116-9(CANP) - A116-36 (+B) W - B Ignition switch off 6 kΩ or higher
      A116-21 (CANN) - A116-35 (E1) L - W-B Ignition switch off 200 Ω or higher
      A116-9 (CANP) - A116-35 (E1) W - W-B Ignition switch off 200 Ω or higher
  10. CHECK NETWORK GATEWAY ECU (for 2ZR-FE)

    B004569E02

    1. Disconnect the A118 network gateway ECU connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A118-9 (CANH) - A118-8 (CANL) L - W Ignition switch off 108 to 132 Ω
      A118-9 (CANH) - A118-1 (BATT) L - Y Ignition switch off 6 kΩ or higher
      A118-8(CANL) - A118-1 (BATT) W - Y Ignition switch off 6 kΩ or higher
      A118-9 (CANH) - A118-12 (GND) L - BR Ignition switch off 200 Ω or higher
      A118-8 (CANL) - A118-12 (GND) W - BR Ignition switch off 200 Ω or higher
      for Local Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A118-6 (CA1H) - A118-7 (CA1L) W - L Ignition switch off 108 to 132 Ω
      A118-6 (CA1H) - A118-1 (BATT) W - Y Ignition switch off 6 kΩ or higher
      A118-7(CA1L) - A118-1 (BATT) L - Y Ignition switch off 6 kΩ or higher
      A118-6 (CA1H) - A118-12 (GND) W - BR Ignition switch off 200 Ω or higher
      A118-7 (CA1L) - A118-12 (GND) L - BR Ignition switch off 200 Ω or higher
  11. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (2 Connector Type)

    B004893E04
    Text in Illustration
    *A for LHD *B for RHD
    *1 Instrument Panel Junction Block Assembly *2 Main Body ECU (Multiplex Network Body ECU)

    1. Disconnect the F76 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the 3B and 3C instrument panel junction block assembly connectors.

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

      for Bus 2
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F76-14 (CANH) - F76-13 (CANL) R - W Ignition switch off 54 to 69 Ω
      F76-14 (CANH) - 3C-21 (BECU) R - L Ignition switch off 6 kΩ or higher
      F76-13 (CANL) - 3C-21 (BECU) W - L Ignition switch off 6 kΩ or higher
      F76-14 (CANH) - 3B-8 (GND1) R - W-B Ignition switch off 200 Ω or higher
      F76-13 (CANL) - 3B-8 (GND1) W - W-B Ignition switch off 200 Ω or higher
  12. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (1 Connector Type)

    B00462UE03
    Text in Illustration
    *A for LHD *B for RHD
    *1 Instrument Panel Junction Block Assembly *2 Main Body ECU (Multiplex Network Body ECU)

    1. Disconnect the F76 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the 3B and 3C instrument panel junction block assembly connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F76-14 (CANH) - F76-13 (CANL) R - W Ignition switch off 54 to 69 Ω
      F76-14 (CANH) - 3C-21 (BECU) R - L Ignition switch off 6 kΩ or higher
      F76-13 (CANL) - 3C-21 (BECU) W - L Ignition switch off 6 kΩ or higher
      F76-14 (CANH) - 3B-8 (GND1) R - W-B Ignition switch off 200 Ω or higher
      F76-13 (CANL) - 3B-8 (GND1) W - W-B Ignition switch off 200 Ω or higher
  13. CHECK COMBINATION METER ASSEMBLY

    B004680E06

    1. Disconnect the F1 combination meter assembly connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F1-32 (CANH) - F1-31 (CANL) G - W Ignition switch off 108 to 132 Ω
      F1-32 (CANH) - F1-40 (B) G - L Ignition switch off 6 kΩ or higher
      F1-31 (CANL) - F1-40 (B) W - L Ignition switch off 6 kΩ or higher
      F1-32 (CANH) - F1-21 (ET) G - W-B Ignition switch off 200 Ω or higher
      F1-31 (CANL) - F1-21 (ET) W - W-B Ignition switch off 200 Ω or higher
  14. CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

    B004577E03
    Text in Illustration
    *A for LHD with CVT and RHD *B for LHD with Manual Transaxle

    1. Disconnect the A78*1 or A79*2 skid control ECU (brake actuator assembly) connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition

      A78-23 (CANH) - A78-21 (CANL)*1

      A79-23 (CANH) - A79-21 (CANL)*2

      G - W Ignition switch off 54 to 69 Ω

      A78-23 (CANH) - A78-1 (+BS)*1

      A79-23 (CANH) - A79-1 (+BS)*2

      G - W Ignition switch off 6 kΩ or higher

      A78-21 (CANL) - A78-1 (+BS)*1

      A79-21 (CANL) - A79-1 (+BS)*2

      W - W Ignition switch off 6 kΩ or higher

      A78-23 (CANH) - A78-13 (GND1)*1

      A79-23 (CANH) - A79-13 (GND1)*2

      G - W-B Ignition switch off 200 Ω or higher

      A78-21 (CANL) - A78-13 (GND1)*1

      A79-21 (CANL) - A79-13 (GND1)*2

      W - W-B Ignition switch off 200 Ω or higher

      • *1: for LHD with CVT and RHD

      • *2: for LHD with Manual Transaxle

  15. CHECK CENTER AIRBAG SENSOR ASSEMBLY

    B0047BUE02
    Text in Illustration
    *A w/o VSC *B w/ VSC

    1. Disconnect the F16 center airbag sensor assembly connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F16-13 (CANH) - F16-22 (CANL) B - W Ignition switch off 54 to 69 Ω
      F16-13 (CANH) - F4-16 (BAT) B - BE Ignition switch off 6 kΩ or higher
      F16-22 (CANL) - F4-16 (BAT) W - BE Ignition switch off 6 kΩ or higher
      F16-13 (CANH) - F4-4 (CG) B - W-B Ignition switch off 200 Ω or higher
      F16-22 (CANL) - F4-4 (CG) W - W-B Ignition switch off 200 Ω or higher
  16. CHECK STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (w/ VSC)

    B00466HE06

    1. Disconnect the F30 steering angle sensor (spiral cable sub-assembly) connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F30-4 (CANH) - F30-3 (CANL) P - W Ignition switch off 54 to 69 Ω
      F30-4 (CANH) - F30-6 (BAT) P - SB Ignition switch off 6 kΩ or higher
      F30-3 (CANL) - F30-6 (BAT) W - SB Ignition switch off 6 kΩ or higher
      F30-4 (CANH) - F30-2 (ESS) P - BR Ignition switch off 200 Ω or higher
      F30-3 (CANL) - F30-2 (ESS) W - BR Ignition switch off 200 Ω or higher
  17. CHECK POWER STEERING ECU ASSEMBLY

    B0047B5E05

    1. Disconnect the A42 and F6 power steering ECU assembly connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F6-7 (CANH) - F6-8 (CANL) LG - W Ignition switch off 54 to 69 Ω
      F6-7 (CANH) - A42-1 (PIG) LG - W Ignition switch off 6 kΩ or higher
      F6-8 (CANL) - A42-1 (PIG) W - W Ignition switch off 6 kΩ or higher
      F6-7 (CANH) - A42-2 (PGND) LG - W-B Ignition switch off 200 Ω or higher
      F6-8 (CANL) - A42-2 (PGND) W - W-B Ignition switch off 200 Ω or higher
  18. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

    B0046Z1E02

    1. Disconnect the F63 and F65 certification ECU (smart key ECU assembly) connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F63-14 (CANH) - F63-15 (CANL) L - W Ignition switch off 54 to 69 Ω
      F63-14 (CANH) - F65-2 (+B) L - W Ignition switch off 6 kΩ or higher
      F63-15 (CANL) - F65-2 (+B) W - W Ignition switch off 6 kΩ or higher
      F63-14 (CANH) - F65-11 (E) L - BR Ignition switch off 200 Ω or higher
      F63-15 (CANL) - F65-11 (E) W - BR Ignition switch off 200 Ω or higher
  19. RADIO AND DISPLAY RECEIVER ASSEMBLY (w/ Display)

    B0047Z6E04

    1. Disconnect the F113 and F115 radio and display receiver assembly connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F115-9 (CANH) - F115-10 (CANL) BE - W Ignition switch off 54 to 69 Ω
      F115-9 (CANH) - F113-4 (+B1) BE - SB Ignition switch off 6 kΩ or higher
      F115-10 (CANL) - F113-4 (+B1) W - SB Ignition switch off 6 kΩ or higher
      F115-9 (CANH) - F113-7 (GND1) BE - BR Ignition switch off 200 Ω or higher
      F115-10 (CANL) - F113-7 (GND1) W - BR Ignition switch off 200 Ω or higher
  20. CHECK ENGINE STOP AND START ECU (w/ Stop and Start System)

    B0048ACE02

    1. Disconnect the A91 and F131 engine stop and start ECU connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F131-15 (CANH) - F131-16 (CANL) BE - W Ignition switch off 54 to 69 Ω
      F131-15 (CANH) - A91-7 (BIN) BE - B Ignition switch off 6 kΩ or higher
      F131-16 (CANL) - A91-7 (BIN) W - B Ignition switch off 6 kΩ or higher
      F131-15 (CANH) - A91-8 (GND) BE - W-B Ignition switch off 200 Ω or higher
      F131-16 (CANL) - A91-8 (GND) W - W-B Ignition switch off 200 Ω or higher
  21. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Air Conditioning System or PTC Heater)

    B0045EZE07
    Text in Illustration
    *A w/ Automatic Air Conditioning System *B w/ Manual Air Conditioning System or PTC Heater

    1. Disconnect the F42*1 or F41*2 air conditioning amplifier assembly connector.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition

      F42-11 (TX+) - F42-12 (TX-)*1

      F41-8 (TX+) - F41-9 (TX-)*2

      V - W Ignition switch off 54 to 69 Ω

      F42-11 (TX+) - F42-21 (B)*1

      F41-8 (TX+) - F4-16 (BAT)*2

      V - BE Ignition switch off 6 kΩ or higher

      F42-12 (TX-) - F42-21 (B)*1

      F41-9 (TX-) - F4-16 (BAT)*2

      W - BE Ignition switch off 6 kΩ or higher

      F42-11 (TX+) - F42-14 (GND)*1

      F41-8 (TX+) - F41-23 (GND)*2

      V - W-B Ignition switch off 200 Ω or higher

      F42-12 (TX-) - F42-14 (GND)*1

      F41-9 (TX-) - F41-23 (GND)*2

      W - W-B Ignition switch off 200 Ω or higher

      • *1: w/ Automatic Air Conditioning System

      • *2: w/ Manual Air Conditioning System or PTC Heater

  22. OPTION CONNECTOR (BUS BUFFER ECU) (for GRMN)


    1. B0046HIE01

      Disconnect the F143 Option connector (bus buffer ECU) connectors.

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

      for V Bus
      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F143-4 (CANH) - F143-5 (CANL) BE - W Ignition switch off 54 to 69 Ω
      F143-4 (CANH) - F143-1 (+B) BE - L Ignition switch off 6 kΩ or higher
      F143-5 (CANL) - F143-1 (+B) W - L Ignition switch off 6 kΩ or higher
      F143-4 (CANH) - F143-2 (GND) BE - W-B Ignition switch off 200 Ω or higher
      F143-5 (CANL) - F143-2 (GND) W - W-B Ignition switch off 200 Ω or higher