1. Disconnect the park brake warning switch connector.
2. Turn the ignition switch to the RUN position.

Does the brake indicator remain lit?

-

Go to Step 2

Go to Step 3

Disconnect the brake pressure warning switch connector.

Does the brake indicator remain lit?

-

Go to Step 4

Go to Step 5

Is the park brake warning switch properly adjusted?

-

Go to Step 10

Go to Step 11

Disconnect the electronic brake control module (EBCM) connector C1.

Does the brake indicator remain lit?

-

Go to Step 7

Go to Step 

Refer to Brake System Testing for the diagnosis of the hydraulic brake system.

Does the brake indicator run correctly?

-

System OK

-

Refer to Diagnostic System Check - ABS in Antilock Brake System in Brakes.

Does the brake indicator run correctly?

-

System OK

-

1. Disconnect the instrument cluster connector.
2. Connect a test lamp from the instrument cluster connector cavity 17 to B+.
3. Test for a short to ground.

Does the test lamp light?

-

Go to Step 8

Go to Step 9

Repair the short to ground in CKT 33 (TAN/WHT) between the instrument cluster and the EBCM or the park brake warning switch.

Does the brake indicator turn off?

-

System OK

-

Replace the instrument cluster printed circuit.

Does the brake indicator turn off?

-

System OK

-

Replace the park brake warning switch.

Does the brake indicator run correctly?

-

System OK

-

Properly adjust the park brake warning switch.

Does the brake indicator run correctly?

-

System OK

-