GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Does the Brake Warning indicator come on with the ignition switch in the RUN position?

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Go to Step 2

Go to Instrument Cluster System Check Instrument Panel, Gauges and Console

2

Check for a short to B+ on circuit 33.

Is there a short to B+ on circuit 33?

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Go to Step 3

Go to Step 4

3

Repair the short to B+ in circuit 33.

Has the repair been made and the system rechecked?

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System OK

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4

Check for a poor connection or an open in circuit 33, between S207 and the instrument cluster harness connector C1 terminal B.

Is there a poor connection or an open in circuit 33 between S207 and the instrument cluster harness connector C1 terminal B?

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Go to Step 5

Go to Step 6

5

Repair a poor connection or an open in circuit 33 between S207 and the instrument cluster harness connector C1 terminal B.

Has the repair been made and the system rechecked?

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System OK

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6

  1. Check the warning indicator bulb and bulb connection.
  2. If OK, replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Has the repair been made and the system rechecked?

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System OK

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