ABS Light: Description and Operation

ABS WARNING LIGHT





The ABS-ECU controls the power transistor in ABS-ECU to turn on and causes the ABS warning light to illuminate in the following cases:
- During initial check when the ignition switch is at the "ON" position (for approximately three minutes)
- When a problem develops in the ABS/EBD system
- Poor ABS-ECU connector connection

ABS WARNING LIGHT RELAY





The ABS warning light relay is located at the junction block inside the driver's side instrument panel under cover. The relay is a normally-closed type, and is controlled by the ABS-ECU. When the transistor inside the ABS-ECU turns off, the ABS warning light relay turns on and the ABS warning light illuminates.