CAN COMMUNICATION SYSTEM Check CAN Bus Line for Short to +B (LHD Models)

DESCRIPTION

There may be a short circuit between the CAN bus lines and +B when the resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kΩ.

Symptom Trouble Area
The resistance between terminals 6 (CANH) and 16 (BAT) or terminals 14 (CANL) and 16 (BAT) of the DLC3 is below 6 kΩ.

  • Short between CAN bus lines and +B

  • ECM

  • Combination meter assembly

  • Airbag sensor assembly

  • Skid control ECU (brake actuator assembly)

  • Main body ECU (multiplex network body ECU)

  • Power steering ECU assembly

  • Certification ECU (smart key ECU assembly)*1

  • Steering angle sensor (spiral cable sub-assembly)*2

  • Radio receiver assembly*3

  • Air conditioning amplifier assembly*4

  • Engine stop and start ECU*5

  • No. 1 junction connector

  • No. 2 junction connector

WIRING DIAGRAM

A005HGWE06
A005JJPE08

CAUTION / NOTICE / HINT

Note


  • Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.

  • After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.

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

Tech Tips

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

PROCEDURE


  1. CHECK SHORT TO B+ IN CAN BUS WIRE (DLC3 BRANCH WIRE)


    1. Turn the ignition switch off.

    2. Disconnect the A61 and F82 No. 1 junction connectors.

    3. A005IBOE01
      Text in Illustration
      *a Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F4-6 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F4-14 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (DLC3 BRANCH WIRE)

    OK

  2. CONNECT CONNECTOR


    1. Reconnect the A61 and F82 No. 1 junction connectors.


    NEXT

  3. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR)


    1. Disconnect the F83 No. 2 junction connector.

    2. A005IBOE01
      Text in Illustration
      *a Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F4-6 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F4-14 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR) Click here

    OK

  4. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. A005GKYE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-7 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-18 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE) Click here

    OK

  5. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

    Tech Tips

    For vehicles without air conditioning system or electrical type power heater system, go to step 6.


    1. A005KDJE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-8 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-19 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE) Click here

    OK

  6. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY))

    Tech Tips

    For vehicles without VSC, go to step 7.


    1. A005KGNE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-1 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-12 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE) Click here

    OK

  7. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

    Tech Tips

    For vehicles without entry and start system, go to step 8.


    1. A005JDQE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-3 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-14 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE) Click here

    OK

  8. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)

    Tech Tips

    For vehicles without radio and display system, go to step 9.


    1. A005L81E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-5 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-16 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (RADIO RECEIVER ASSEMBLY BRANCH WIRE) Click here

    OK

  9. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY)


    1. A005HTHE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-4 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-15 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE NO. 2 JUNCTION CONNECTOR

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (AIRBAG SENSOR ASSEMBLY BRANCH WIRE) Click here

  10. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    1. A005JBTE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

      Disconnect the A61 and F82 No. 1 junction connectors.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-4 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-15 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

    OK

  11. CONNECT CONNECTOR


    1. Reconnect the F83 No. 2 junction connector.


    NEXT

  12. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)


    1. A005HIEE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      A61-20 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (ECM MAIN WIRE) Click here

    OK

  13. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)


    1. A005M7LE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-10 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      A61-21 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE) Click here

    OK

  14. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ENGINE STOP AND START ECU)

    Tech Tips

    For vehicles without stop and start system, go to step 15.


    1. A005H6IE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-16 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE) Click here

    OK

  15. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)


    1. A005GDOE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-2 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-13 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY) Click here

    OK

  16. CHECK SHORT TO B+ IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. A005MGSE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-1 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-12 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE NO. 1 JUNCTION CONNECTOR

    NG

    CHECK SHORT TO B+ IN CAN BUS WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE) Click here

  17. CHECK SHORT TO B+ IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE)


    1. Disconnect the F1 combination meter assembly connector.

    2. A005GKYE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-7 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-18 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (COMBINATION METER ASSEMBLY MAIN WIRE)

  18. CHECK SHORT TO B+ IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)


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

      *1 : w/ Automatic Air Conditioning System

      *2 : w/ Manual Air Conditioning System or Electrical Type Power Heater System

    2. A005KDJE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-8 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-19 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)

  19. CHECK SHORT TO B+ IN CAN BUS WIRE (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)


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

    2. A005KGNE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-1 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-12 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)

  20. CHECK SHORT TO B+ IN CAN BUS WIRE (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)


    1. Disconnect the F63 certification ECU (smart key ECU assembly) connector.

    2. A005JDQE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-3 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-14 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)

  21. CHECK SHORT TO B+ IN CAN BUS WIRE (RADIO RECEIVER ASSEMBLY BRANCH WIRE)


    1. Disconnect the F47 radio receiver assembly connector.

    2. A005L81E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-5 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-16 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (RADIO RECEIVER ASSEMBLY BRANCH WIRE)

  22. CHECK SHORT TO B+ IN CAN BUS WIRE (AIRBAG SENSOR ASSEMBLY BRANCH WIRE)


    1. Disconnect the F16 airbag sensor assembly connector.

    2. A005HTHE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F83-4 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F83-15 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

  23. CHECK SHORT TO B+ IN CAN BUS WIRE (ECM MAIN WIRE)


    1. Disconnect the A58*1 or A59*2 ECM connector.

      *1 : for 1NR-FE

      *2 : for 1ND-TV

    2. A005HIEE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-9 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      A61-20 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK (for 1ND-TV) B
      OK (for 1NR-FE) C

    A

    REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (ECM MAIN WIRE)

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

  24. CHECK SHORT TO B+ IN CAN BUS WIRE (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)


    1. Disconnect the A54*1, A55*2, A56*3 or A57*4 skid control ECU (brake actuator assembly) connector.

      *1 : except CVT with VSC

      *2 : except CVT without VSC

      *3 : for CVT with VSC

      *4 : for CVT without VSC

    2. A005M7LE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A61-10 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      A61-21 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)

  25. CHECK SHORT TO B+ IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE)


    1. Disconnect the F75 engine stop and start ECU connector.

    2. A005H6IE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-5 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-16 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE ENGINE STOP AND START ECU Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (ENGINE STOP AND START ECU BRANCH WIRE)

  26. CHECK SHORT TO B+ IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY)


    1. Disconnect the F6 power steering ECU assembly connector.

    2. A005GDOE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-2 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-13 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (POWER STEERING ECU ASSEMBLY BRANCH WIRE)

  27. CHECK SHORT TO B+ IN CAN BUS WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)


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

    2. A005MGSE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to No. 1 Junction Connector)
      *b Front view of DLC3

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F82-1 (CANH) - F4-16 (BAT) Ignition switch off 6 kΩ or higher
      F82-12 (CANL) - F4-16 (BAT) Ignition switch off 6 kΩ or higher

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)