GM Service Manual Online
For 1990-2009 cars only

Park, Tail and Side Marker Lamps Inoperative LH

Step

Action

Value(s)

Yes

No

1

Was the entire Exterior Lights System Check performed?

--

Go to Step 2

Go to Exterior Lights System Check

2

Check the rear junction block LP PK L Fuse for an open.

Is the LP PK L Fuse OK?

--

Go to Step 3

Go to Step 4

3

Replace the rear junction block. Refer to Rear Junction Block Replacement.

Is the rear junction block replacement complete?

--

Go to Exterior Lights System Check

--

4

Repair the short to ground in CKT 709 (PPL). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 5

--

5

Replace the LP PK L Fuse in the rear junction block. Refer to Wiring Repairs in Wiring Systems.

Is the fuse replacement complete?

--

Go to Exterior Lights System Check

--

Park, Tail and Side Marker Lamps Inoperative RH

Step

Action

Value(s)

Yes

No

1

Was the entire Exterior Lights System Check performed?

--

Go to Step 2

Go to Exterior Lights System Check

2

Check the rear junction block LP PK R Fuse for an open.

Is the LP PK R Fuse OK?

--

Go to Step 3

Go to Step 4

3

Replace the rear junction block. Refer to Rear Junction Block Replacement.

Is the rear junction block replacement complete?

--

Go to Exterior Lights System Check

--

4

Repair the short to ground in CKT 309 (BRN/WHT). Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Step 5

--

5

Replace the LP PK R Fuse in the rear junction block. Refer to Wiring Repairs in Wiring Systems.

Is the fuse replacement complete?

--

Go to Exterior Lights System Check

--