GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the ABS Diagnostic System Check performed?

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Go to Step 2

Go to Diagnostic System Check - ABS

2

  1. Turn the ignition switch to the OFF position.
  2. Install a Scan Tool .
  3. Turn the ignition switch to the ON position.
  4. Do not start the engine.

  5. Use the Scan Tool in order to clear the DTCs.
  6. Turn the ignition switch to the OFF position.
  7. Turn the ignition switch to the ON position.
  8. Do not start the engine

Does the undefined DTC(s) reset?

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Go to Step 3

Go to Step 4

3

Replace the EBCM. Refer to Electronic Brake Control Module Replacement .

Is the repair complete?

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Go to Diagnostic System Check - ABS

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4

The malfunction is not present at this time.

Is the action complete?

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System OK

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