GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the instrument cluster diagnostic system check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

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

Does the BRAKE indicator still light?

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Go to Step 4

Go to Step 3

3

  1. Replace the brake fluid level indicator switch. Refer to Brake Fluid Level Indicator Switch Replacement in Hydraulic Brakes.
  2. Inspect the system.

Is the repair complete?

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System OK

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4

  1. Turn the ignition switch to the OFF position.
  2. Disconnect the Electronic Brake Control/Electronic Brake Traction Control Module (EBCM/EBTCM).
  3. Turn the ignition switch to the RUN position.

Does the BRAKE indicator still light?

--

Go to Step 6

Go to Step 5

5

  1. Replace the Electronic Brake Control/Electronic Brake Traction Control Module (EBCM/EBTCM). Refer to Electronic Brake and Traction Control Module Replacement in Antilock Brake System (ABS) and Enhanced Traction System (ETS).
  2. Inspect the system.

Is the repair complete?

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System OK

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6

  1. Inspect for a short to ground on CKT 209.
  2. Inspect the system.

Is the repair complete?

--

System OK

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