CRUISE CONTROL SYSTEM DIAGNOSIS SYSTEM


  1. DESCRIPTION

    The ECM controls the cruise control system of the vehicle. The data and DTCs relating to the cruise control system can be read from the DLC3 of the vehicle. If either DTC or CRUISE OK is not displayed on the multi-information display on the combination meter assembly when checking for DTCs, there may be a problem with either the combination meter or the CAN communication system. Use the intelligent tester to check and solve the problem.

    Tech Tips

    If a vehicle speed sensor, stop light switch assembly or any other related part malfunctions, the power management control ECU cancels cruise control operation automatically.

  2. CHECK DLC3


    1. Check the DLC3 Click here.

  3. CHECK INDICATOR


    1. A01NG10E02
      Text in Illustration
      *1 Cruise Main Indicator Light

      Turn the power switch on (IG).

    2. Check that the CRUISE main indicator light turns on when the cruise control switch is turned on, and that the indicator light turns off when the control switch is turned off.

      Tech Tips


      • If the indicator check result is not normal, proceed to troubleshooting for the cruise main indicator light circuit Click here.

      • A01NH5IE42

        If a malfunction occurs in the speed sensor or stop light switch assembly, etc., during cruise control driving, the power management control ECU activates the AUTO CANCEL of the cruise control and turns on and off the CRUISE main indicator light to inform the driver of a malfunction. At the same time, the malfunction is stored in memory as a diagnostic trouble code.