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Inspection Procedure

  1. INSPECT CRUISE CONTROL MAIN SWITCH 
    1. Disconnect the cruise control main switch connector.
    2. Measure resistance between terminal 4 and 5 of the cruise control switch connector when cruise control main switch is operated.

      Standard: 

      CRUISE CONTROL MAIN SWITCH - RESISTANCE SPECIFICATION

      Switch condition Resistance (Ω)
      Neutral infin (No continuity)
      RES 210 - 270
      SET 560 - 700
      CANCEL 1,380 - 1,700
    3. Check continuity between terminals 4 and 5 of cruise control main switch connector when main switch button is held on and off.

      Standard: 

      CRUISE CONTROL MAIN SWITCH - CONTINUITY SPECIFICATION

      Switch condition Tester connection Specification
      OFF 4 - 5 No continuity
      ON 4 - 5 Continuity
      Fig 1: Inspecting Cruise Control Main Switch
      G02964865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE CRUISE CONTROL MAIN SWITCH 
    2. OK: Go to next step. 
  2. CHECK HARNESS AND CONNECTOR (CRUISE CONTROL MAIN SWITCH, BODY GROUND - ECM) 
    1. Check for open and short circuit in harness and connector between cruise control main switch and ECM (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    2. Check for open and short circuit in harness and connector between cruise control main switch and body ground (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
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