CRUISE CONTROL SYSTEM DIAGNOSIS SYSTEM

  1. DESCRIPTION

    The power management control ECU 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. Use the Techstream to check and solve the problem.

    Tech Tips

    If a vehicle speed sensor, stop light switch 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. Turn the power switch on (IG).

      Text in Illustration
      *1 Multi-information Display
      *2 Cruise Control Indicator Light
      A011YJFE01

    2. Check that the cruise control indicator light illuminates when the cruise control system is turned on using the cruise control switch (ON-OFF button), and that the indicator light turns off when the cruise control system is turned off using the cruise control switch (ON-OFF button). If the results are not as specified, perform the Cruise Main Indicator Light Circuit inspection procedure Click here.

      Tech Tips

      While driving with the cruise control system controlling vehicle speed, the power management control ECU will automatically cancel cruise control system control of vehicle speed when a malfunction occurs in one of the following: vehicle speed sensors, stop light switch assembly, or other related parts. When control of vehicle speed by the cruise control system is automatically canceled, the cruise control indicator light goes out and a warning message is displayed. At the same time, a DTC is stored.