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.

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 LIGHT)

   
   

   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	TRC OFF indicator light	Indicator light ON/OFF	Observe combination meter assembly

   4. Check that the TRC OFF indicator light on the combination meter assembly turns on or off in accordance with the intelligent tester operation.

      OK
      The TRC OFF indicator light turns on or off in accordance with the Active Test 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 parts Click here.

   
   

   NG

   INSPECT COMBINATION METER ASSEMBLY Click here

   OK

   REPLACE BRAKE ACTUATOR ASSEMBLY Click here

3. INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Turn the ignition switch off.

   2. Perform an Active Test of the combination meter assembly (meter CPU) using the intelligent tester Click here.

   3. Check the combination meter assembly.

      OK
      The TRC OFF indicator light turns on or off in accordance with the Active Test 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 parts Click here.

   
   

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

   OK

   REPLACE BRAKE ACTUATOR ASSEMBLY Click here