VEHICLE STABILITY CONTROL SYSTEM TRC OFF Indicator Light does not Come ON

DESCRIPTION

The skid control ECU is connected to the combination meter assembly via CAN communication.

WIRING DIAGRAM

Refer to TRC OFF Indicator Light Remains ON Click here.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if a CAN communication system DTC is output Click here.

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

   
   

   B

   INSPECT CAN COMMUNICATION SYSTEM Click here

   A

2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TRC OFF INDICATOR)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Start the engine.

   3. Select the Active Test on the intelligent tester Click here.

      ABS/VSC/TRC

      Tester Display	Test Part	Control Range	Diagnostic Note
      TRC(TRAC) OFF Indicator Light	Multi-information display (TRC OFF indicator)	Display ON/OFF	Observe combination meter assembly

   4. Check that the multi-information display (TRC OFF indicator) on the combination meter assembly turns on or off in accordance with the intelligent tester operation.

      OK
      The multi-information display (TRC OFF indicator) turns on or off in accordance with the intelligent tester operation.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part Click here.

   
   

   NG

   INSPECT COMBINATION METER ASSEMBLY Click here

   OK

   REPLACE BRAKE ACTUATOR ASSEMBLY Click here

3. INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Turn the engine switch off.

   2. Perform the Active Test of the combination meter assembly using the intelligent tester Click here.

   3. Check the combination meter assembly.

      OK
      The multi-information display turns on or off in accordance with the intelligent tester operation.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Click here.

   
   

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

   OK

   REPLACE BRAKE ACTUATOR ASSEMBLY Click here