VEHICLE STABILITY CONTROL SYSTEM DIAGNOSIS SYSTEM

DESCRIPTION

When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the intelligent tester to the vehicle and reading various data output from the vehicle's skid control ECU.

The skid control ECU records DTCs when it detects a malfunction in the ECU itself or in its circuits.

To check the DTCs, connect the intelligent tester to the DLC3 on the vehicle. The intelligent tester enables you to clear the DTCs, activate the various actuators, and check the Freeze Frame Data and Data List.

1. Check the battery voltage.

   If the voltage is below 11 V, recharge the battery before proceeding to the next step.

   Check the DLC3 Click here.

   DIAGNOSIS

   
   

   1. 

      If the skid control ECU detects a malfunction, the ABS warning, brake warning, slip indicator and master caution indicator lights will come on and the multi-information display will show warning message in order to warn the driver.

      The table below indicates which lights will come on when there is a malfunction in a particular function.

   Item / Trouble Area	ABS	EBD	BA	TRC	VSC	Skid Control ECU
   ABS warning light	○	○	○	-	-	○
   Brake warning light	-	○	-	-	-	○
   Slip indicator light	○	○	○	○	○	○
   Master caution indicator light	○	○	○	○	○	○
   Multi-information display	○	○	○	○	○	○