DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:P157800

DTC Code DTC Name
P157800 Brake System

DESCRIPTION

This DTC is stored when a malfunction is detected in the vehicle stability control system. Check the vehicle stability control system when DTC P157800 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
P157800 Brake System

    w/o Full-speed range following function:

  • While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a malfunction in the vehicle stability control system is detected for 0.2 seconds or more.


    w/ Full-speed range following function:

  • While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, a malfunction in the vehicle stability control system is detected for 0.2 seconds or more.

  • Vehicle stability control system

  • ECM

CAUTION / NOTICE / HINT

Note


  • Before replacing the ECM, refer to Service Bulletin.

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting

    Click here

PROCEDURE


  1. CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check for DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      Vehicle stability control system DTCs are output B

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    A

  2. CHECK FOR DTCs (RADAR CRUISE 1)


    1. Clear the DTCs.

      Click here


      Powertrain > Cruise Control > Clear DTCs

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Click here


      Powertrain > Cruise Control > Trouble Codes
      Result
      Result Proceed to
      DTC P157800 is not output A
      DTC P157800 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE ECM Click here