FixVault

Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH) 
    1. Check the DATA LIST for proper functioning of the cruise control switch.

      ECM 

      ECM - DATA LIST

      Item Measurement Item / Display (Range) Normal Condition Diagnostic Note
      MAIN SW (MAIN) Main switch (Main CPU) / ON or OFF ON: Main switch (Main CPU) is ON
      OFF: Main switch (Main CPU) is OFF
      -
      CANCEL SW CANCEL switch / ON or OFF ON: CANCEL switch is ON
      OFF: CANCEL switch is OFF
      -
      SET/COAST SW - / SET switch / ON or OFF ON: - / SET switch is ON
      OFF: - / SET switch is OFF
      -
      RES/ACC SW + / RES switch / ON or OFF ON: + / RES switch is ON
      OFF: + / RES switch is OFF
      -

      OK: When cruise control switch operation is performed, the results will be same as above. 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    NG: Go TO NEXT STEP. 

  2. INSPECT CRUISE CONTROL SWITCH 
    1. Disconnect the cruise control switch connector.
    2. Measure the resistance of the switch.
      Fig 1: Identifying Cruise Control Switch Connector Terminals
      G04490709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Switch Condition Specified Condition
      3 - 4 cruise control switch ON 10 kΩ or higher
      cruise control switch OFF Below 1 Ω
      +/RES 216 to 264 Ω
      -/SET 567 to 693 Ω
      CANCEL 1,386 to 1,694 Ω

    NG: REPLACE CRUISE CONTROL MAIN SWITCH 

    OK: Go TO NEXT STEP. 

  3. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    1. Disconnect the cruise control switch connector.
    2. Disconnect the E7 cable connector.
    3. Measure the resistance of the spiral cable.
      Fig 2: Inspecting Spiral Cable Sub-Assembly
      G04490710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      A-3 (CCS) - E7-1 (CCS) Below 1 Ω
      A-2 (ECC) - E7-2 (ECC)

    NG: REPLACE SPIRAL CABLE SUB-ASSEMBLY 

    OK: Go TO NEXT STEP. 

  4. CHECK WIRE HARNESS (SPIRAL CABLE - ECM AND BODY GROUND) 
    1. Disconnect the E7 cable connector.
    2. Disconnect the A9 ECM connector.
    3. Measure the resistance of the wire harness side connectors.
      Fig 3: Identifying A7 Spiral Cable & A9 ECM Harness Connector Terminals
      G04490711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Specified Condition
      E7-1 (CCS) - A9-40 (CCS) Below 1 Ω
      E7-2 (ECC) - Body ground

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE