3: ABS Warning Light Does Not Illuminate When Key Is Turned On

INSPECTION PROCEDURE 3







NOTE: When power is supplied to the ABS-ECU, the ABS valve relay turns from "OFF" to "ON" by the initial check. Thus, even if there is a problem with the circuit between the ABS warning lamp and the ABS-ECU, the ABS warning lamp will illuminate once the ABS valve relay is "OFF."

Hint:
1. If the lamp does not illuminate when the ignition is turned "ON," the cause is probably an open circuit in the lamp power supply, a burnt out lamp bulb or an open circuit in both the circuits of the ABS-ECU and warning lamp and the ABS valve relay and warning lamp.
2. When other warning lamps do not illuminate, the cause is probably a blown fuse.

NOTE: If the ignition (IG2) terminals are shorted to another battery terminal, the power supply to the ABS-ECU will be normal.

Probable cause:
- Blown fuse.
- Burnt out ABS warning lamp bulb.
Malfunction of the wiring harness or connector.