For 1990-2009 cars

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Brake Warning System Circuit Description .

### Visual/Physical Inspection

• | Inspect for aftermarket devices which could affect the operation of the Brake Warning System. Refer to Checking Aftermarket Accessories in Wiring Systems.

• | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

• | Inspect the brake fluid reservoir for the proper fluid level.

• | Inspect the DRL and dome lamp for normal operations.

• | Inspect all other instrument cluster indicators for normal operation.

### Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

### Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

• | Brake Warning Indicator Always On

• | Brake Warning Indicator Inoperative