Dodge Durango

 Service Manual

Instrument Panel Systems » Diagnosis and testing » Instrument cluster
Brake warning lamp

The diagnosis found here addresses an inoperative brake warning lamp condition. If the brake warning lamp stays on with the ignition switch in the On position and the park brake released, or comes on while driving, refer to Rear Wheel Antilock for vehicles equipped with a rear wheel anti-lock brake system, or refer to Antilock Brakes for vehicles equipped with a four wheel anti-lock brake system in the Diagnosis and Testing section of Group 5 - Brakes for further diagnosis. If no brake system problem is found, the following procedure will help locate a faulty park brake switch or park brake switch sense circuit. For complete circuit diagrams, refer to Instrument Cluster in the Contents of Group 8W - Wiring Diagrams.

(1) Check the fused ignition switch output (run/ start) fuse in the junction block. If OK, go to Step 2.

If not OK, repair the shorted circuit or component as required and replace the faulty fuse.

(2) Turn the ignition switch to the On position.

Check for battery voltage at the fused ignition switch output (run/start) fuse in the junction block. If OK, go to Step 3. If not OK, repair the open fused ignition switch output (run/start) circuit to the ignition switch as required.

(3) Turn the ignition switch to the Off position.

Disconnect and isolate the battery negative cable.

Disconnect the wire harness connector at the park brake switch. With the park brake released, check for continuity between the park brake switch terminal and a good ground. There should be no continuity. If OK, go to Step 4. If not OK, adjust or replace the faulty park brake switch.

(4) Remove the instrument cluster. With the park brake switch wire harness connector still disconnected, check for continuity between the park brake switch sense circuit cavity of the park brake switch wire harness connector and a good ground. There should be no continuity. If OK, go to Step 5. If not OK, repair the shorted park brake switch sense circuit as required.

(5) Check for continuity between the park brake switch sense circuit cavities of the instrument cluster wire harness connector A and the park brake switch wire harness connector. There should be continuity. If OK, refer to Instrument Cluster - Preliminary Diagnosis in the Diagnosis and Testing section of this group for further testing of the brake warning lamp and the instrument cluster circuitry. If not OK, repair the open park brake switch sense circuit as required.

Preliminary diagnosis

Self-diagnostic test

Brake warning lamp

Cluster illumination lamp

Four-wheel drive lock indicator lamp

Headlamp high beam indicator lamp

Low washer fluid warning lamp

Security lamp

Turn signal indicator lamp