GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the headlamp switch to the PARK position.
  2. Turn the dimmer switch to the OFF position.
  3. Using a test light, backprobe between the inoperable VF display harness connector circuit 32 to ground.

Does the test light illuminate?

--

Go to Step 2

Go to Step 3

2

Using a test light, backprobe the inoperable VF display between circuit 32 and one of the following ground circuits:

    • Circuit 1450
    • Circuit 1750
    • Circuit 351

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

Repair a poor connection or an open in circuit 32 between S241 and the inoperable component.

Is the repair complete?

--

Go to Diagnostic System Check - Lighting Systems

--

4

Repair a poor connection or an open in ground (circuit 1450, 1750, or 351) between the inoperable VF display and G200, G201, or G203.

Is the repair complete?

--

Go to Diagnostic System Check - Lighting Systems

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