GM Service Manual Online
For 1990-2009 cars only

Park, Tail and Side Marker Lamps Inoperative Domestic

Step

Action

Value(s)

Yes

No

1

Did you perform the Lighting Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Disconnect the headlamp and panel dimmer switch.
  2. Connect a test lamp from CKT 240 (ORN) cavity B at the headlamp and panel dimmer switch to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect a fused jumper between CKT 240 (ORN) cavity B to CKT 9 (BRN) cavity H of the headlamp and panel dimmer switch.

Do the inoperative lamps light?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 240 (ORN) from the headlamp and panel dimmer switch to the instrument panel fuse block.

Is the repair complete?

--

Go to Step 7

--

5

Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement .

Is the replacement complete?

--

Go to Step 7

--

6

Repair the open in CKT 9 (BRN) between the headlamp and panel dimmer switch and the affected lamp(s).

Is the repair complete?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2

Park, Tail and Side Marker Lamps Inoperative VE1

Step

Action

Value(s)

Yes

No

1

Did the Lighting Diagnostic System Check bring you here?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

Check PK LPS Fuse 9 at the I/P Fuse Block.

Is the fuse functional?

--

Go to Step 4

Go to Step 3

3

Locate overload and replace PK LPS Fuse.

Is the repair complete?

--

Go to Step 9

--

4

  1. Disconnect the Headlamp annd Panel Dimmer Switch
  2. Connect a test lamp from CKT 240 (ORN) wire cavity B at the Headlamp and Panel Dimmer Switch to Ground.

Does Test lamp light?

--

Go to Step 5

Go to Step 6

5

Connect a fused Jumper between CKT 240 (ORN) wire cavity H to BRN (9) wire cavity H.

Do the park, tail, and side marker lamps operate?

--

Go to Step 7

Go to Step 8

6

Locate and repair open in CKT 240 (ORN) wire from Headlamp and panel Dimmer Switch to I/P Fuse Block.

Is the Repair complete?

--

Go to Step 9

--

7

Replace headlamp and Panel Dimmer Switch. Refer to Headlamp Switch Replacement .

Is the Repair complete?

--

Go to Step 9

--

8

Locate and repair open in CKT 9 (BRN) wire between Headlamp and Panel Dimmer Switch and S217.

Is the repair complete?

--

Go to Step 9

--

9

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2