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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check voltage between terminal CCS of ECM connector and body ground. 

    PREPARATION: 

    1. Remove the ECM with the connector still connected.
    2. Turn the ignition switch ON.

      CHECK: 

      Measure the voltage between terminal CCS of the ECM connector and body ground when each of the -/SET, +/RES and CANCEL is turned ON.

      Fig 1: Checking Voltage Between Terminal CCS Of ECM Connector And Body Ground
      G02913421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      IGNITION SWITCH POSITION CONDITION

      Switch Position Specified Condition
      Neutral 10 to 16V
      +/RES 2.3 to 4.5 V
      -/SET 4.5 to 8.1 V
      CANCEL 6.6 to 11.4V
    1. NG : Proceed to next circuit inspection shown in problem symptoms table (See  PROBLEM SYMPTOMS TABLE   ). 
    2. OK : Go to next step. 
  2. Check cruise control switch resistance. 

    PREPARATION: 

    1. Remove steering wheel center pad.
    2. Disconnect the cruise control switch connector.

      CHECK: 

      1. Measure the resistance between terminals 4 and 5 of the cruise control switch connector when the control switch is operated.

        OK: 

        CRUISE CONTROL SWITCH CONDITIONS

        Switch Position Specified Condition
        Neutral 1 kΩ or higher
        CRUISE Below 1 Ω
        +/RES 220 to 260 Ω
        -/SET 600 to 660 Ω
        CANCEL 1,500 to 1,600 Ω
      2. Measure the resistance between terminals 4 and 5 of the control switch connector when the main switch is held on and off.
        Fig 2: Checking Cruise Control Switch Resistance & Continuity
        G02913422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK: 

        CRUISE CONTROL SWITCH CONDITIONS

        Switch Position Tester Connection Specified Condition
        OFF 4 - 5 1 kΩ or higher
        ON 4 - 5 Below 1 Ω
      1. NG : Replace control switch. 
      2. OK : Go to next step. 
    3. Check harness and connector between ECM and cruise control switch, and cruise control switch and body ground (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
      1. NG : Repair or replace harness or connector. 
      2. OK : Go to next step. 
    4. Check cruise control indicator light (See combination meter). 
      1. NG : Replace combination meter. 
      2. OK : Check and replace ECM (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
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