Is the vehicle equipped with an Electronic Control Module (EBCM)?

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Go to Step 2

Go to Step 4

1. Disconnect the EBCM connector C1.
2. Turn the ignition switch to the RUN position.

Does the brake indicator still illuminate?

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Go to Step 3

Go to Step 12

1. Turn the ignition switch to the OFF position.
2. Disconnect the brake fluid level sensor.
3. Turn the ignition switch to the RUN position.

Does the brake indicator still illuminate?

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Go to Step 5

Go to Step 4

Replace the brake fluid level sensor. Refer to Brake Fluid Level Indicator Switch Replacement in Hydraulic Brakes.

Is the repair complete?

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System OK

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1. Turn the ignition switch to the OFF position.
2. Disconnect the park brake switch.
3. Turn the ignition to the RUN position.

Does the brake indicator still illuminate?

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Go to Step 7

Go to Step 6

Replace the park brake switch. Refer to Parking Brake Indicator Switch Replacement in Parking Brake.

Is the repair complete?

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System OK

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1. Turn the ignition switch to the OFF position.
2. Disconnect the Daytime Running Lamps (DRL) control module.
3. Turn the ignition switch to the RUN position.

Does the brake indicator still illuminate?

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Go to Step 9

Go to Step 8

1. Inspect for a short to ground in circuit 1134.
2. If OK, replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement in Lighting Systems.

Is the repair complete?

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System OK

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Disconnect the ignition switch.

Does the brake indicator still illuminate?

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Go to Step 11

Go to Step 10

Replace the ignition switch.

Is the repair complete?

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System OK

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1. Inspect for a short to ground in circuit 33.
2. If OK, replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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System OK

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Replace the EBCM. Refer to Electronic Brake Control Module Replacement in Antilock Brakes.

Is the repair complete?

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System OK

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