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DYNAMIC RADAR CRUISE CONTROL SYSTEM(except 2AR-FE), Diagnostic DTC:P157800

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DTC Code DTC Name
P157800 Brake System
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DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
P157800 Brake System While the engine switch is on (IG) 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
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CAUTION / NOTICE / HINT

Note:

  • 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.

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  • Before replacing the ECM, refer to Service Bulletin.

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PROCEDURE


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    CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check for DTCs.


      1. Chassis > ABS/VSC/TRC > Trouble Codes


      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

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    CHECK FOR DTCs (CRUISE CONTROL SYSTEM)


    1. Clear the DTCs.


      1. Powertrain > Cruise Control > Clear DTCs


    2. Perform the following procedure.

      Tip:

      If the following procedure is not performed, the previously output DTC cannot be detected.


      1. Turn the engine switch on (IG).

      2. Turn the dynamic radar cruise control system on using the cruise control main switch.

      3. Wait for 1 second or more.

    3. Check for DTCs.


      1. Powertrain > Cruise Control > Trouble Codes


      Result
      Result Proceed to
      DTC P157800 is not output A
      DTC P157800 is output B