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?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

Check the rear fuse block DIMR Fuse for an open.

Is the DIMR Fuse OK?

--

Go to Step 3

Go to Step 4

3

Replace the rear fuse block.

Is the rear fuse block replacement complete?

--

Go to Step 6

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4

Repair the short to ground in CKTs 32 (YEL). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 5

--

5

Replace the DIMR Fuse in the rear fuse block.

Is the fuse replacement complete?

--

Go to Step 6

--

6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK.

Go to Step 2