GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Lighting Systems Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

Check the appropriate fuse in the rear fuse block for an open:

    • LH: LP PK L Fuse
    • RH: LP PK R Fuse

Is the fuse OK?

--

Go to Step 3

Go to Step 4

3

Replace the rear fuse block. Refer to Rear Electrical Center or Junction Block Replacement

Is the rear fuse block replacement complete?

--

Go to Step 6

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4

Repair the short to ground in the appropriate circuit:

    • LH: CKT 709 (PPL)
    • RH: CKT 309 (BRN/WHT)

Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 5

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5

Replace the appropriate fuse in the rear fuse block:

    • LH: LP PK L Fuse
    • RH: LP PK R Fuse

Is the fuse replacement complete?

--

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK.

Go to Step 2