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July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  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 the branch wire.
      CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
  2. CHECK CAN BUS WIRE (MAIN WIRE FOR DISCONNECTION, BUS LINES FOR SHORT CIRCUIT) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition Resistance of Malfunction
      H37-22 (CANH) - H37-21 (CANL) Ignition switch off 54 to 69 n Below 53 Ω: Short in line
      70 Ω or higher: Open in CAN main bus line
      H37-22 (CANH) - H37-18 (B) Ignition switch off 6 kΩ higher Below 6 kΩ: +B short
      H37-21 (CANL) - H37-18 (B)
      H37-22 (CANH) - H37-40 (E1) Ignition switch off 200 Ω or higher Below 200 Ω: Ground short
      H37-21 (CANL) - H37-40 (E1)
      Fig 1: Identifying H37 Combination Meter ECU Connector Terminals
      G05652991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT CHART

      Result Proceed to
      NG
      • Open in CAN main wire
      		 A
      NG (w/ Power back door system)
      • Short in line
      • +B short
      • Ground short
      		 B
      NG (w/o Power back door system)
      • Short in line
      • +B short
      • Ground short
      		 C
      OK D

    B:  Go to step  15

    C:  Go to step  26

    D:  Go to step  45

    A: Go to Next Step 

  3. CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. With Power back door system:
      1. Disconnect the H104 No. 3 junction connector.
      2. Measure the resistance according to the value (s) in the table below.

        Standard Resistance 

        TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

        Tester Connection Switch Condition Specified Condition
        H104-1 (CANH) - H104-2 (CANL) Ignition switch off 108 to 132 Ω
        Fig 2: Identifying H104 No. 3 Junction Connector Terminals With Power Back Door System
        G05652992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Without Power back door system:
      1. Disconnect the H104 No. 3 junction connector.
      2. Measure the resistance according to the value (s) in the table below.

        Standard Resistance 

        TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

        Tester Connection Switch Condition Specified Condition
        H104-1 (CANH) - M 04-2 (CANL) Ignition switch off 108 to 132 Ω
        Fig 3: Identifying H104 No. 3 Junction Connector Terminals Without Power Back Door System
        G05652993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Result 

        RESULT CHART

        Result Proceed to
        OK A
        NG (w/o Power back door system) B
        NG (w/ Power back door system) C

    B:  Go to step  8

    C:  Go to step  10

    A: Go to Next Step 

  4. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  5. CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ECU) 
    1. Disconnect the H102 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H102-1 (CANH) - H102-2 (CANL) Ignition switch off 108 to 132 Ω

    NG: Go to step 6 

    Fig 4: Identifying H102 No. 3 Junction Connector Terminals
    G05652994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE NO. 3 JUNCTION CONNECTOR 

  6. CONNECT CONNECTOR 
    1. Reconnect the H102 No. 3 junction connector.
  7. CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ECU - NO. 3 JUNCTION CONNECTOR) 
    1. Disconnect the H102 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H37-22 (CANH) - H37-21 (CANL) Ignition switch off 108 to 132 Ω

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ECU (COMBINATION METER ECU - NO. 3 JUNCTION CONNECTOR) 

    Fig 5: Identifying H37 Combination Meter ECU Connector Terminals
    G05652995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

  8. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  9. CHECK FOR OPEN IN CAN BUS WIRE (MAIN BODY ECU - NO. 3 JUNCTION CONNECTOR) 
    1. Disconnect the H2 main body ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H2-16 (CANP) - H2-15 (CANN) Ignition switch off 108 to 132 Ω

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (MAIN BODY ECU - NO. 3 JUNCTION CONNECTOR) 

    Fig 6: Identifying H2 Main Body ECU Connector Terminals
    G05652996Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MAIN BODY ECU 

  10. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  11. CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the 041 No. 4 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O41-6 (CANH) - O41-12 (CANL) Ignition switch off 108 to 132 Ω

    NG: REPAIR OR REPLACE CAN MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 

    Fig 7: Identifying 041 No. 4 Junction Connector Terminals
    G05652997Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  12. CHECK FOR OPEN IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O41-5 (CANH) - O41-11 (CANL) Ignition switch off 108 to 132 Ω

    NG: Go to step 13 

    Fig 8: Identifying 041 No. 4 Junction Connector Terminals (Main Body ECU)
    G05652998Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE NO. 4 JUNCTION CONNECTOR 

  13. CONNECT CONNECTOR 
    1. Reconnect the 041 No. 4 junction connector.
  14. CHECK FOR OPEN IN CAN BUS WIRE (MAIN BODY ECU - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the H2 main body ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H2-16 (CANP) - H2-15 (CANN) Ignition switch off 108 to 132 Ω

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (MAIN BODY ECU - NO. 4 JUNCTION CONNECTOR) 

    Fig 9: Identifying H2 Main Body ECU Connector Terminals
    G05652999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MAIN BODY ECU 

  15. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR SIDE) 
    1. Disconnect the H104 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H37-22 (CANH) - H37-21 (CANL) Ignition switch off 108 to 132 Ω
      H37-22 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H37-21 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H37-22 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H37-21 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  25

    Fig 10: Identifying H37 Combination Meter ECU And H19 DLC3 Connector Terminals
    G05653000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  16. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  17. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the 041 No. 4 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O41-6 (CANH) - O41-12 (CANL) Ignition switch off 108 to 132 Ω
      O41-6 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O41-12 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O41-6 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      O41-12 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 

    Fig 11: Identifying 041 No. 4 Junction Connector Terminals
    G05653001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  18. CONNECT CONNECTOR 
    1. Reconnect the 041 No. 4 junction connector.
  19. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - POWER BACK DOOR ECU) 
    1. Disconnect the 042 No. 4 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O42-1 (CANH) - O42-7 (CANL) Ignition switch off 1 Ω or higher
      O42-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O42-7 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O42-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      O42-7 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  21

    Fig 12: Identifying 042 No. 4 Junction Connector Terminals
    G05653002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  20. CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. Disconnect the 041 No. 4 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O41-5 (CANH) - O41-12 (CANL) Ignition switch off 108 to 132 Ω
      O41-5 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O41-11 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O41-5 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      O41-11 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  23

    Fig 13: Identifying 041 No. 4 Junction Connector Terminals
    G05653003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE NO. 4 JUNCTION CONNECTOR 

  21. CONNECT CONNECTOR 
    1. Reconnect the 042 No. 4 junction connector.
  22. CHECK FOR SHORT IN CAN BUS WIRES (POWER BACK DOOR ECU) 
    1. Disconnect the O30 power back door ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      O30-6 (CANP) - O30-5 (CANN) Ignition switch off 54 to 69 Ω
      O30-6 (CANP) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O30-5 (CANN) - H19-4 (CG) Ignition switch off 200 Ω or higher
      O30-6 (CANP) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      O30-5 (CANN) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER BACK DOOR ECU (NO. 4 JUNCTION CONNECTOR - POWER BACK DOOR ECU) 

    Fig 14: Identifying O30 Power Back Door ECU Connector Terminals
    G05653004Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE POWER BACK DOOR UNIT ASSEMBLY  (See REMOVAL )

  23. CONNECT CONNECTOR 
    1. Reconnect the 042 No. 4 junction connector.
  24. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU) 
    1. Disconnect the H2 main body ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H2-16 (CANP) - H2-15 (CANN) Ignition switch off 108 to 132 Ω
      H2-16 (CANP) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H2-15 (CANN) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H2-16 (CANP) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H2-15 (CANN) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (NO. 4 JUNCTION CONNECTOR - MAIN BODY ECU) 

    Fig 15: Identifying H2 Main Body ECU Connector Terminals
    G05653005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MAIN BODY ECU 

  25. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  26. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER SEAT CONTROL ECU) 
    1. Disconnect the H97 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H97-1 (CANH) - H97-2 (CANL) Ignition switch off 1 Ω or higher
      H97-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H97-2 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H97-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H97-2 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  35

    Fig 16: Identifying H97 No. 3 Junction Connector Terminals
    G05653006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  27. CONNECT CONNECTOR 
    1. Reconnect the H97 No. 3 junction connector.
  28. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Disconnect the H96 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H96-1 (CANH) - H96-2 (CANL) Ignition switch off 1 Ω or higher
      H96-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H96-2 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H96-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H96-2 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  37

    Fig 17: Identifying H96 No. 3 Junction Connector Terminals
    G05653007Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  29. CONNECT CONNECTOR 
    1. Reconnect the H96 No. 3 junction connector.
  30. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU) 
    1. Disconnect the H98 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H98-1 (CANH) - H98-2 (CANL) Ignition switch off 1 Ω or higher
      H98-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H98-2 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H98-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H98-2 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  39

    Fig 18: Identifying H98 No. 3 Junction Connector Terminals
    G05653008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  31. CONNECT CONNECTOR 
    1. Reconnect the H98 No. 3 junction connector.
  32. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR COMBINATION METER ECU) 
    1. Disconnect the H102 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H102-1 (CANH) - H102-2 (CANL) Ignition switch off 108 to 132 Ω
      H102-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H102-2 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H102-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H102-2 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

      Result 

      RESULT CHART

      Result Proceed to
      OK (w/o Power back door system) A
      NG B
      OK (w/ Power back door system) C

    B:  Go to step  41

    C: REPAIR OR REPLACE NO. 3 JUNCTION CONNECTOR 

    Fig 19: Identifying H10 No. 3 Junction Connector Terminals
    G05653009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    A: Go to Next Step 

  33. CONNECT CONNECTOR 
    1. Reconnect the H102 No. 3 junction connector.
  34. CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. Disconnect the H104 No. 3 junction connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H104-1 (CANH) - H104-2 (CANL) Ignition switch off 108 to 132 Ω
      H104-1 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H104-2 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H104-1 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H104-2 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG:  Go to step  43

    Fig 20: Identifying H102 No. 3 Junction Connector Terminals
    G05653010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE NO. 3 JUNCTION CONNECTOR 

  35. CONNECT CONNECTOR 
    1. Reconnect the H97 No. 3 junction connector.
  36. CHECK FOR SHORT IN CAN BUS WIRES (POWER SEAT CONTROL ECU) 
    1. Disconnect the X11 power seat control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      X11-5 (CANH) - X11-1 (CANL) Ignition switch off 54 to 69 Ω
      X11-5 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      X11-1 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      X11-5 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      X11-1 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER SEAT CONTROL ECU (NO. 3 JUNCTION CONNECTOR - POWER SEAT CONTROL ECU) 

    Fig 21: Identifying X11 Power Seat Control ECU Connector Terminals
    G05653011Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE FRONT POWER SEAT SWITCH LH  (See REMOVAL )

  37. CONNECT CONNECTOR 
    1. Reconnect the H96 No. 3 junction connector.
  38. CHECK FOR SHORT IN CAN BUS WIRES (MULTIPLEX TILT AND TELESCOPIC ECU) 
    1. Disconnect the H57 multiplex tilt and telescopic ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H57-5 (CANH) - H57-14 (CANL) Ignition switch off 54 to 69 Ω
      H57-5 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H57-14 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H57-5 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H57-14 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MULTIPLEX TILT AND TELESCOPIC ECU (NO. 3 JUNCTION CONNECTOR - MULTIPLEX TILT AND TELESCOPIC ECU) 

    Fig 22: Identifying H57 Multiplex Tilt And Telescopic ECU Connector Terminals
    G05653012Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MULTIPLEX TILT AND TELESCOPIC ECU  (See REMOVAL )

  39. CONNECT CONNECTOR 
    1. Reconnect the H98 No. 3 junction connector.
  40. CHECK FOR SHORT IN CAN BUS WIRES (OUTER MIRROR CONTROL ECU) 
    1. Disconnect the M8 outer mirror control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      M8-1 (CAN) - M8- 21 (CGND) Ignition switch off 54 to 69 Ω
      M8-1 (CAN) - H19-4 (CG) Ignition switch off 200 Ω or higher
      M8-21 (CGND) - H19-4 (CG) Ignition switch off 200 Ω or higher
      M8-1 (CAN) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      M8-21 (CGND) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO OUTER MIRROR CONTROL ECU (NO. 3 JUNCTION CONNECTOR - OUTER MIRROR CONTROL ECU) 

    Fig 23: Identifying M8 Outer Mirror Control ECU Connector Terminals
    G05653013Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE OUTER MIRROR CONTROL ECU  (See DISASSEMBLY )

  41. CONNECT CONNECTOR 
    1. Reconnect the H102 No. 3 junction connector.
  42. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ECU) 
    1. Disconnect the H37 combination meter ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H37-22 (CANH) - H37-21 (CANL) Ignition switch off 108 to 132 Ω
      H37-22 (CANH) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H37-21 (CANL) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H37-22 (CANH) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H37-21 (CANL) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ECU (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ECU) 

    Fig 24: Identifying H37 Combination Meter ECU Connector Terminals
    G05653014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

  43. CONNECT CONNECTOR 
    1. Reconnect the H104 No. 3 junction connector.
  44. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU) 
    1. Disconnect the H2 main body ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      H2-16 (CANP) - H2-15 (CANN) Ignition switch off 108 to 132 Ω
      H2-16 (CANP) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H2-15 (CANN) - H19-4 (CG) Ignition switch off 200 Ω or higher
      H2-16 (CANP) - H19-16 (BAT) Ignition switch off 6 kΩ or higher
      H2-16 (CANP) - H19-16 (BAT) Ignition switch off 6 kΩ or higher

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO MAIN BODY ECU (NO. 3 JUNCTION CONNECTOR - MAIN BODY ECU) 

    Fig 25: Identifying H2 Main Body ECU Connector Terminals
    G05653005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MAIN BODY ECU 

  45. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND) 
    1. Reconnect the cable to the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
    2. Disconnect the DA, DB and DD main body ECU connectors.
    3. Measure the resistance according to the value (s) in the table below.
      Fig 26: Identifying DA, DB And DD Main Body ECU Connector Terminals
      G05163432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Condition Specified Condition
      DD-62 (GND1) - Body ground Always Below 1 Ω
    4. Measure the voltage according to the value (s) in the table below.

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

      Tester Connection Condition Specified Condition
      DA-1 (ALTB) - Body ground Always 11 to 14 V
      DB-13 (BECU) - Body ground

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE MAIN BODY ECU 

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