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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System (W/O Smart Key) (Diagnostic Codes & Circuit Tests) (Hybrid) >> CAN COMMUNICATION SYSTEM (w/o Smart Key System) >> Short to GND in CAN Bus Line >> Procedure

Short to GND in CAN Bus Line: Procedure

  1. 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 CAN branch wire.
      WARNING:

      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, refer to INITIALIZATION .

    NEXT: Go to next step 

  2. CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 CAN BRANCH WIRE) 
    1. Disconnect the D55 No. 2 junction connector.
      Fig 1: Identifying DLC3 Connector Terminals
      GTY301215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D47-6 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D47-14 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Front view of DLC3

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

    OK: Go to next step 

  3. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  4. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR SIDE) 
    1. Disconnect the D59 No. 1 junction connector.
      Fig 2: Identifying DLC3 Connector Terminals
      GTY301215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D47-6 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D47-14 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Front view of DLC3

    NG → See step   23 

    OK: Go to next step 

  5. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY306961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-1 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-12 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   11 

    OK: Go to next step 

  6. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - BUS BUFFER ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY297921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-2 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-13 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   13 

    OK: Go to next step 

  7. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 5: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY302223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-3 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-14 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   15 

    OK: Go to next step 

  8. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 6: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY302292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-4 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-15 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   17 

    OK: Go to next step 

  9. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NAVIGATION RECEIVER ASSEMBLY) 
    NOTE:

    For vehicles without a navigation system, go to "Check for Short to GND in CAN Bus Wire (No. 1 Junction Connector - Hybrid Vehicle Control ECU)".

    1. Measure the resistance according to the value(s) in the table below.
      Fig 7: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY307073Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-6 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-17 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   19 

    OK: Go to next step 

  10. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - HYBRID VEHICLE CONTROL ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 8: Identifying D59 No. 1 Junction Connector & View Of DLC3
      GTY302464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D59-7 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D59-18 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 1 Junction Connector)
      *b Front view of DLC3

    NG → See step   21 

    OK → REPLACE NO. 1 JUNCTION CONNECTOR 

  11. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  12. CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM) 
    1. Disconnect the A67 ECM connector.
      Fig 9: Identifying A67 ECM Connector & View Of DLC3
      GTY304788Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A67-12 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      A67-25 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to ECM)
      *b Front view of DLC3

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO ECM (CANH, CANL) 

    OK → See step   47 

  13. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  14. CHECK FOR SHORT TO GND IN CAN BUS WIRE (BUS BUFFER ECU) 
    1. Disconnect the D50 bus buffer ECU (accessory gateway) connector.
      Fig 10: Identifying D50 Bus Buffer ECU Accessory Gateway Connector & View Of DLC3
      GTY295776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D50-1 (CAN+) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D50-2 (CAN-) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Bus Buffer ECU [Accessory Gateway])
      *b Front view of DLC3

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BUS BUFFER ECU (CAN+, CAN-) 

    OK → REPLACE BUS BUFFER ECU (ACCESSORY GATEWAY) 

  15. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  16. CHECK FOR SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY) 
    1. Disconnect the D37 air conditioning amplifier assembly connector.
      Fig 11: Identifying D37 Air Conditioning Amplifier Assembly Connector & View Of DLC3
      GTY295464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D37-11 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D37-12 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Air Conditioning Amplifier Assembly)
      *b Front view of DLC3

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

    OK → See step   43 

  17. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  18. CHECK FOR SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU ASSEMBLY) 
    1. Disconnect the A44 skid control ECU assembly connector.
      Fig 12: Identifying A44 Skid Control ECU Assembly Connector & View Of DLC3
      GTY295904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A44-8 (CA1H) - D47-4 (CG) Ignition switch off 200 Ω or higher
      A44-9 (CA1L) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Skid Control ECU Assembly)
      *b Front view of DLC3

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SKID CONTROL ECU ASSEMBLY (CA1H, CA1L) 

    OK → See step   44 

  19. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  20. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NAVIGATION RECEIVER ASSEMBLY) 
    1. Disconnect the E25 navigation receiver assembly connector.
      Fig 13: Identifying E25 Navigation Receiver Assembly Connector & View Of DLC3
      GTY302258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E25-2 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      E25-3 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Navigation Receiver Assembly)
      *b Front view of DLC3

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO NAVIGATION RECEIVER ASSEMBLY (CANH, CANL) 

    OK → See step   45 

  21. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  22. CHECK FOR SHORT TO GND IN CAN BUS WIRE (HYBRID VEHICLE CONTROL ECU) 
    1. Disconnect the D73 hybrid vehicle control ECU connector.
      Fig 14: Identifying D73 Hybrid Vehicle Control ECU Connector & View Of DLC3
      GTY300401Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D73-25 (CA1H) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D73-24 (CA1L) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Hybrid Vehicle Control ECU)
      *b Front view of DLC3

    NG → REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO HYBRID VEHICLE CONTROL ECU (CA1H, CA1L) 

    OK → See step   46 

  23. CONNECT CONNECTOR 
    1. Reconnect the D59 No. 1 junction connector.

    NEXT: Go to next step 

  24. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR) 
    1. Disconnect the D55 No. 2 junction connector.
      Fig 15: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY301982Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-1 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-12 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

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

    OK: Go to next step 

  25. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - YAW RATE SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 16: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY302059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-2 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-13 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   31 

    OK: Go to next step 

  26. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 17: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY302110Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-3 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-14 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   33 

    OK: Go to next step 

  27. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - STEERING ANGLE SENSOR) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 18: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY307023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-5 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-16 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   35 

    OK: Go to next step 

  28. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 19: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY301519Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-7 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-18 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   37 

    OK: Go to next step 

  29. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 20: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY306483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-8 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-19 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   39 

    OK: Go to next step 

  30. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 21: Identifying D55 No. 2 Junction Connector & View Of DLC3
      GTY306542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D55-6 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D55-17 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to No. 2 Junction Connector)
      *b Front view of DLC3

    NG → See step   41 

    OK → REPLACE NO. 2 JUNCTION CONNECTOR 

  31. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  32. CHECK FOR SHORT TO GND IN CAN BUS WIRE (YAW RATE SENSOR ASSEMBLY) 
    1. Disconnect the O6 yaw rate sensor assembly connector.
      Fig 22: Identifying O6 Yaw Rate Sensor Assembly Connector & View Of DLC3
      GTY299928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      O6-3 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      O6-2 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Yaw Rate Sensor Assembly)
      *b Front view of DLC3

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

    OK → See step   48 

  33. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  34. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY) 
    1. Disconnect the D30 center airbag sensor assembly connector.
      Fig 23: Identifying D30 Center Airbag Sensor Assembly Connector & View Of DLC3
      GTY296092Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D30-13 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D30-22 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Center Airbag Sensor Assembly)
      *b Front view of DLC3

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

    OK → See step   49 

  35. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  36. CHECK FOR SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR) 
    1. Disconnect the D14 steering angle sensor connector.
      Fig 24: Identifying D14 Steering Angle Sensor Connector & View Of DLC3
      GTY300710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D14-3 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D14-2 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Steering Angle Sensor)
      *b Front view of DLC3

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

    OK → See step   50 

  37. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  38. CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY) 
    1. Disconnect the D6 power steering ECU assembly connector.
      Fig 25: Identifying D6 Power Steering ECU Assembly Connector & View Of DLC3
      GTY298107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D6-2 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D6-8 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Power Steering ECU Assembly)
      *b Front view of DLC3

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

    OK → See step   51 

  39. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  40. CHECK FOR SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU) 
    1. Disconnect the D9 main body ECU (instrument panel junction block assembly) connector.
      Fig 26: Identifying D9 Main Body ECU Instrument Panel Junction Block Assembly Connector & View Of DLC3
      GTY303609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      D9-5 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      D9-6 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Main Body ECU [Instrument Panel Junction Block Assembly])
      *b Front view of DLC3

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

    OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) 

  41. CONNECT CONNECTOR 
    1. Reconnect the D55 No. 2 junction connector.

    NEXT: Go to next step 

  42. CHECK FOR SHORT TO GND IN CAN BUS WIRE (COMBINATION METER ASSEMBLY) 
    1. Disconnect the E1 combination meter assembly connector.
      Fig 27: Identifying E1 Combination Meter Assembly Connector & View Of DLC3
      GTY295295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E1-25 (CANH) - D47-4 (CG) Ignition switch off 200 Ω or higher
      E1-26 (CANL) - D47-4 (CG) Ignition switch off 200 Ω or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Combination Meter Assembly)
      *b Front view of DLC3

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

    OK → See step   52 

  43. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL 
  44. REPLACE SKID CONTROL ECU ASSEMBLY. Refer to  REMOVAL 
  45. REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL 
  46. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL 
  47. REPLACE ECM. Refer to  REMOVAL 
  48. REPLACE YAW RATE SENSOR ASSEMBLY. Refer to  REMOVAL 
  49. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  50. REPLACE STEERING ANGLE SENSOR. Refer to  REMOVAL 
  51. REPLACE POWER STEERING ECU ASSEMBLY. Refer to  REMOVAL 
  52. REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL 
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