CAN COMMUNICATION SYSTEM Short to GND in CAN Bus Line

DESCRIPTION

There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

Symptom Trouble Area
The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.

  • Short between CAN bus lines and GND

  • ECM

  • Brake actuator assembly (skid control ECU)

  • Parking brake with bracket actuator assembly (parking brake ECU)

  • Certification ECU (smart key ECU assembly)*1

  • Power steering ECU assembly

  • Air conditioning amplifier assembly*2

  • Spiral with sensor cable sub-assembly (steering angle sensor)

  • Yaw rate sensor

  • Main body ECU (instrument panel junction block assembly)

  • Radio and display receiver assembly*3

  • Headlight swivel ECU assembly*5

  • Headlight leveling ECU assembly*6

  • Power management control ECU*1

  • Center airbag sensor assembly

  • Pre-crash safety city sensor*4

  • Combination meter assembly

  • No. 1 junction connector

  • No. 2 junction connector

  • No. 3 junction connector

WIRING DIAGRAM

A0055OAE02
A0052XDE02
A0053OYE02
w/ Entry and Start System
*a Yaw Rate Sensor
*b Combination Meter Assembly
*c No. 3 Junction Connector
A0059LFE02
A0057KCE02
A0053ZAE02

CAUTION / NOTICE / HINT

Note


  • For vehicles with an entry and start system:

    Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) Click here.

  • As the door control battery is installed between the vehicle battery and main body ECU (instrument panel junction block assembly), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (instrument panel junction block assembly) before performing this troubleshooting procedure Click here.

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. PRECAUTION

    Note

    After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.


    NEXT

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


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

      CAUTION:

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

      Note

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


    NEXT

  3. CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 CAN BRAKE WIRE)


    1. A00559WE02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the D149 No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D8-6 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D8-14 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)

    OK

  4. CONNECT CONNECTOR


    1. Reconnect the D149 No. 1 junction connector.


    NEXT

  5. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR SIDE)


    1. A00559WE02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the D161 No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D8-6 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D8-14 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  6. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - RADIO AND DISPLAY RECEIVER ASSEMBLY)

    Note

    For vehicles without radio and display type, go to "Check for Short to GND in CAN Bus Wire (No. 3 Junction Connector - Air Conditioning Amplifier Assembly)".


    1. A0054LKE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D153-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D153-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  7. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

    Note

    For vehicles with an entry and start system, go to "Check for Short to GND in CAN Bus Wire (No. 3 Junction Connector - Center Airbag Sensor Assembly)".


    1. A00581AE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D154-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D154-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  8. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)


    1. A0052TUE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D155-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D155-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  9. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - CERTIFICATION ECU)

    Note

    For vehicles without an entry and start system, go to "Check for Short to GND in CAN Bus Wire (No. 3 Junction Connector - Yaw Rate Sensor)".


    1. A0055BSE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D156-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D156-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  10. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)


    1. A0054OTE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D157-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D157-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  11. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - YAW RATE SENSOR)


    1. A0056GHE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D159-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D159-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  12. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - HEADLIGHT ECU)

    Note

    For vehicles with an entry and start system or without an entry and start system and halogen headlight, go to "Check for Short to GND in CAN Bus Wire (No. 3 Junction Connector - Combination Meter Assembly)".


    1. A0052R0E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D160-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D160-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  13. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    1. A0053P2E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Junction Connector)
      *b Front view of DLC3

      Disconnect the No. 3 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D158-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D158-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 3 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTOR Click here

  14. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  15. CHECK FOR SHORT TO GND IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY)


    1. A0056WSE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)
      *b Front view of DLC3

      Disconnect the radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D124-9 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D124-10 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO RADIO AND DISPLAY RECEIVER ASSEMBLY (CANH, CANL)

  16. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  17. CHECK FOR SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY)


    1. A00589ZE02
      Text in Illustration
      *A for Automatic Air conditioning System
      *B for Manual Air Conditioning System and w/o Air Conditioning System
      *a

      Rear view of wire harness connector

      (to Air Conditioning Amplifier Assembly)
      *b Front view of DLC3

      Disconnect the air conditioning amplifier assembly connector.

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

      Standard Resistance
      for Automatic Air conditioning System
      Tester Connection Switch Condition Specified Condition
      D47-11 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D47-12 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      for Manual Air Conditioning System and w/o Air Conditioning System
      Tester Connection Switch Condition Specified Condition
      D101-11 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D101-12 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AIR CONDITIONING AMPLIFIER ASSEMBLY (CANH, CANL)

  18. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  19. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY)


    1. A00597SE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Center Airbag Sensor Assembly)
      *b Front view of DLC3

      Disconnect the center airbag sensor assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D10-13 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D10-22 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CENTER AIRBAG SENSOR ASSEMBLY (CANH, CANL)

  20. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  21. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CERTIFICATION ECU)


    1. A0058CVE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Certification ECU [Smart Key ECU Assembly])
      *b Front view of DLC3

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

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D54-9 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D54-10 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CERTIFICATION ECU (CANH, CANL)

  22. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  23. CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER MANAGEMENT CONTROL ECU)


    1. A0055SIE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b Front view of DLC3

      Disconnect the power management control ECU connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D109-14 (CA1H) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D109-13 (CA1L) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (CA1H, CA1L)

  24. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  25. CHECK FOR SHORT TO GND IN CAN BUS WIRE (YAW RATE SENSOR)


    1. A0058E7E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Yaw Rate Sensor)
      *b Front view of DLC3

      Disconnect the yaw rate sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D69-2 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D69-3 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE YAW RATE SENSOR Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO YAW RATE SENSOR (CANH, CANL)

  26. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  27. CHECK FOR SHORT TO GND IN CAN BUS WIRE (HEADLIGHT ECU)


    1. Disconnect the headlight swivel ECU assembly*1 or headlight leveling ECU assembly*2 connector.


      • *1: w/ Adaptive Front-lighting System

      • *2: w/o Adaptive Front-lighting System

      A00582SE02
      Text in Illustration
      *A w/ Adaptive Front-lighting System *B w/o Adaptive Front-lighting System
      *a

      Rear view of wire harness connector

      (to Headlight Swivel ECU Assembly)

      		 *b

      Front view of wire harness connector

      (to Headlight Leveling ECU Assembly)
      *c Front view of DLC3 - -

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

      Standard Resistance
      w/ Adaptive Front-lighting System
      Tester Connection Switch Condition Specified Condition
      A38-12 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      A38-13 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      w/o Adaptive Front-lighting System
      Tester Connection Switch Condition Specified Condition
      A66-6 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      A66-7 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      Result
      Result Proceed to
      OK (w/ Adaptive Front-lighting System) A
      OK (for LHD, w/o Adaptive Front-lighting System) B
      OK (for RHD, w/o Adaptive Front-lighting System) C
      NG D

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    D

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO HEADLIGHT ECU (CANH, CANL)

  28. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  29. CHECK FOR SHORT TO GND IN CAN BUS WIRE (COMBINATION METER ASSEMBLY)


    1. A0055T1E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Combination Meter Assembly)
      *b Front view of DLC3

      Disconnect the combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D66-32 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D66-31 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (CANH, CANL)

  30. CONNECT CONNECTOR


    1. Reconnect the No. 3 junction connectors.


    NEXT

  31. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)


    1. A0058DGE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G68-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      G68-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

    OK

  32. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR SIDE)


    1. A00559WE02
      Text in Illustration
      *a Front view of DLC3

      Disconnect the G69 No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D8-6 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D8-14 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  33. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - PARKING BRAKE ECU)


    1. A0056BDE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 2 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      G67-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      G67-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 2 JUNCTION CONNECTOR

    NG

  34. CONNECT CONNECTOR


    1. Reconnect the No. 2 junction connectors.


    NEXT

  35. CHECK FOR SHORT TO GND IN CAN BUS WIRE (PARKING BRAKE ECU)


    1. A0052D6E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Parking Brake with Bracket Actuator Assembly [Parking Brake ECU])
      *b Front view of DLC3

      Disconnect the parking brake with bracket actuator assembly (parking brake ECU) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      I1-11 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      I1-23 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY (PARKING BRAKE ECU) Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING BRAKE ECU (CANH, CANL)

  36. CONNECT CONNECTOR


    1. Reconnect the No. 2 junction connectors.


    NEXT

  37. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    1. A0058RHE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D152-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D152-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

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

    OK

  38. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU)


    1. A0059JNE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D146-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D146-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  39. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)


    1. A0057C7E02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D147-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D147-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  40. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)


    1. A005752E02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D148-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D148-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  41. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)


    1. A005353E02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D150-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D150-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  42. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - PRE-CRASH SAFETY CITY SENSOR)

    Note

    For vehicles without a pre-crash safety system, go to "Check for Short to GND in CAN Bus Wire (No. 1 Junction Connector - ECM)".


    1. A0052PTE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D151-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D151-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    NG

    CONNECT CONNECTOR Click here

    OK

  43. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)


    1. A0057QGE02
      Text in Illustration
      *a

      Front view of wire harness connector

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

      Disconnect the No. 1 junction connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D145-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D145-2 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE NO. 1 JUNCTION CONNECTOR

    NG

    CONNECT CONNECTOR Click here

  44. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  45. CHECK FOR SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU)


    1. Disconnect the brake actuator assembly (skid control ECU) connector.

      A0055RFE02
      Text in Illustration
      *A for CVT *B except CVT
      *a

      Front view of wire harness connector

      (to Brake Actuator Assembly [Skid Control ECU])

      		 *b Front view of DLC3

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

      Standard Resistance
      for CVT
      Tester Connection Switch Condition Specified Condition
      A68-26 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      A68-14 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      except CVT
      Tester Connection Switch Condition Specified Condition
      A69-2 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      A69-16 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SKID CONTROL ECU (CANH, CANL)

  46. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  47. CHECK FOR SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR)


    1. A0053JCE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Spiral with Sensor Cable Sub-assembly [Steering Angle Sensor])
      *b Front view of DLC3

      Disconnect the spiral with sensor cable subassembly (steering angle sensor) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D166-4 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D166-3 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

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

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING ANGLE SENSOR (CANH, CANL)

  48. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  49. CHECK FOR SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU)


    1. A0057EPE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Main Body ECU [Instrument Panel Junction Block Assembly])
      *b Front view of DLC3

      Disconnect the main body ECU (instrument panel junction block assembly) connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D81-15 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D81-16 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MAIN BODY ECU (CANH, CANL)

  50. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  51. CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY)


    1. A0057M4E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Steering ECU Assembly)
      *b Front view of DLC3

      Disconnect the power steering ECU assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D50-1 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
      D50-7 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    B

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    C

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER STEERING ECU ASSEMBLY (CANH, CANL)

  52. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  53. CHECK FOR SHORT TO GND IN CAN BUS WIRE (PRE-CRASH SAFETY CITY SENSOR)


    1. A00555VE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Pre-crash Safety City Sensor)
      *b Front view of DLC3

      Disconnect the pre-crash safety city sensor connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      K14-5 (CA1P) - D8-4 (CG) Ignition switch off 200 Ω or higher
      K14-11 (CA1N) - D8-4 (CG) Ignition switch off 200 Ω or higher

    OK

    REPLACE PRE-CRASH SAFETY CITY SENSOR Click here

    NG

    REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PRE-CRASH SAFETY CITY SENSOR (CA1P, CA1N)

  54. CONNECT CONNECTOR


    1. Reconnect the No. 1 junction connectors.


    NEXT

  55. CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM)


    1. A00575ME02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
      *b Front view of DLC3

      for 3ZR-FE:


      1. Disconnect the ECM assembly connector.

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A40-8 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
        A40-9 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
    2. A0059L8E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
      *b Front view of DLC3

      except 3ZR-FE:


      1. Disconnect the ECM assembly connector.

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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        A67-13 (CANH) - D8-4 (CG) Ignition switch off 200 Ω or higher
        A67-26 (CANL) - D8-4 (CG) Ignition switch off 200 Ω or higher
      Result
      Result Proceed to
      OK (for 1ZR-FAE) A
      OK (for 2ZR-FAE) B
      OK (for 3ZR-FE) C
      OK (for 3ZR-FAE) D
      NG E

    A

    REPLACE ECM Click here

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE ECM Click here

    E

    REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)