Diagnosis System
DIAGNOSIS SYSTEM1. DIAGNOSIS
a. If the skid control ECU detects a malfunction, it will warn the driver by turning on the ABS warning light, brake warning light / red (malfunction) and brake warning light / yellow (minor malfunction) and slip and brake hold standby indicator light. It also warns the driver with the indication on the multi-information display.
The table indicates which lights will come on when there is a malfunction in a particular function.
- The DTCs are simultaneously stored in the memory. The DTCs can be read by connecting SST between terminals 13 (TC) and 4 (CG) of the DLC3 and observing the blinking pattern of the ABS warning light and brake warning light / yellow (minor malfunction), or indication on the multi-information display, or by connecting the intelligent tester.
- This system has a signal check function. The DTC can be read by connecting the intelligent tester and observing the blinking pattern of the the ABS warning light and brake warning light / yellow (minor malfunction) or by reading the multi-information display.
2. WARNING LIGHT AND INDICATOR LIGHT BULB CHECK
a. Release the parking brake.
CAUTION: When releasing the parking brake, set chocks to hold the vehicle for safety.
b. When the engine switch is on (IG), check that the ABS warning light, brake warning light / red (malfunction) and brake warning light / yellow (minor malfunction), and slip, brake hold standby, brake hold operated indicator lights illuminate and then turn off after the engine starts.
If a light remains on, proceed to troubleshooting for the light circuit.
Trouble area
ABS warning light circuit
Brake warning light / red (malfunction) circuit
Brake warning light / yellow (minor malfunction) circuit
Slip indicator light circuit
Brake hold standby indicator light circuit
Brake hold operated indicator light circuit