Abs Warning Light Remains Illuminated

Check for ABS DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES under DIAGNOSIS & TESTING. If no DTCs are present, go to next step.
Check ABS control module connectors for poor connection. Repair as necessary. If connectors are okay, go to next step.
Ensure battery is fully charged. Charge or replace as necessary. If battery is fully charged, go to next step.
Check wiring harness between the following:
- ABS control module and ABS relay.
- ABS warning light and ABS control module.
- ABS warning light and ABS relay.
Repair or replace as necessary. If wiring harnesses are okay, go to next step.
Ground ABS control module harness connector terminal No. 2J. See WIRING DIAGRAMS . Turn ignition on. Check the following:
- Listen for operation (click noise) of ABS relay.
- ABS warning light does not illuminate.
- Battery voltage is present at terminal No. 1D of ABS control module connector.
If above checks are okay, go to next step. If above checks are not okay, check the following:
- ABS (fail-safe) relay.
- Wiring harness between ABS (fail-safe) relay, ABS control module and battery.
- Wiring harness between ABS (fail-safe) relay and hydraulic unit.
Repair or replace as necessary. If wiring harnesses and ABS relay are okay, go to next step.
Check voltage at ABS control module connector terminals No. 1E, 1F, 1H, 2B and 2L. See ABS CONTROL MODULE under COMPONENT TESTING . If voltage readings are as specified, replace ABS control module. If voltage readings are not as specified, check wiring harness between the following:
- ABS control module and ground.
- Ignition switch and ABS control module.
- Data Link Connector (DLC) and ABS control module.
- ABS warning light and ABS control module.
Repair or replace as necessary.