GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Instrument Panel, Gages and Console

2

  1. Open the driver door.
  2. Turn the park lamps on.

Does the lights-on-chime sound?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Turn the headlamp switch to the ON position.
  2. Connect a test lamp between the body control module (BCM) connector C3 terminal D15 and ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

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Go to Step 4

Go to Step 6

4

Test for and repair a poor connection at the BCM connector C3 terminal D15. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 7

Go to Step 5

5

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

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Go to Step 7

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6

Repair the open in circuit 9 between the BCM and S226. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3