Diagnosis System

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (w/o VDIM): DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. DIAGNOSIS






(a) If the skid control ECU detects a malfunction, the ABS, BRAKE warning lights, and master caution, SLIP indicator lights will come on and the multi-information display shows warning messages, in order to warn the driver.
The table below indicates which lights will come on when there is a malfunction in a particular function.





o: Light ON
-: Light OFF
- The DTCs are simultaneously stored in the memory. The DTCs can be read by connecting SST between terminals TC and CG of the DLC3 and observing the blinking pattern of the ABS warning light or multi-information display, by reading the multi-information display, or by connecting Techstream.
- This system has a signal check function Test Mode Procedure.
The DTC can be read by connecting Techstream and observing the blinking pattern of the ABS warning light or by reading the multi-information display.

2. WARNING LIGHT AND INDICATOR LIGHT CHECK






(a) Release the parking brake.
NOTE: When releasing the parking brake, set chocks to hold the vehicle for safety.
HINT: When the parking brake is applied or the level of the brake fluid is low, the BRAKE warning light comes on.

(b) When the engine switch is turned on (IG). Check that the ABS, BRAKE warning lights, and master caution, SLIP and VSC OFF indicator lights come on for approximately 3 seconds. Make sure that the message on the multi-information display changes from "CHECK" to "COMPLETE" for 2 seconds.
HINT: If the warning light and indicator light check result is not normal, proceed to troubleshooting for the ABS, BRAKE and VSC warning light circuits and SLIP and VSC OFF indicator light circuits.
If the indicator remains on, proceed to troubleshooting for the light circuit below.