Antilock Brake Diagnosis

1. Verify that parking brake is fully released. If parking brake is applied, the BRAKE indicator will be illuminated. Check battery.
2. Check brake fluid level.

NOTE: As the fluid level falls, the red Brake indicator will illuminate. If fluid level continues to fall, the amber CHECK ANTI-LOCK BRAKE indicator will illuminate and the anti-lock function will inhibit.

3. Verify that all of the following connectors are connected and terminals are secure in connectors:

- 7-pin connector of the solenoid valve block assembly
- 2-pin connector of the main valve
- 5-pin connector of the fluid level indicator
- 5-pin connector of the pressure warning switch
- 2-pin connector on all four sensors
- 4-pin connector on the pump motor
- 32-pin connector of the electronic controller
- 5-pin connector of the main relay
- 5-pin connector of the pump motor relay

4. Check that the fuses and diode are not damaged.
5. Make sure all battery connections are clean and tight.
6. Check ground connections on front end of hydraulic unit in luggage compartment and small black wire from negative post of battery to fender apron. Then, check two main wires plugged into harness connector.