GM Service Manual Online
For 1990-2009 cars only

Fog Lamp Indicator Inoperative Oldsmobile

Step

Action

Value(s)

Yes

No

DEFINITION: This table diagnoses inoperative fog lamp indicator. It assumes that the fog lamps operate properly.

1

Did you perform the entire Fog Lights System Check?

--

Got to Step 2

Go to Fog Lights System Check

2

With the fog lamps on, backprobe with a DMM from the fog lamp switch connector cavity 5 (YEL) to ground.

Is the voltage within the specified range?

10-15V

Got to Step 3

Got to Step 4

3

Backprobe with a DMM from the fog lamp switch connector cavity 5 (YEL) to cavity 6 (BLK).

Is the voltage within the specified range?

10-15V

Got to Step 6

Got to Step 5

4

Repair the open in CKT 317 (YEL) between the fog lamp switch and S124. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

5

Repair the open in CKT 150 (BLK) between the fog lamp switch and S298. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

6

Replace the fog lamp switch.

Is the repair complete?

--

Go to Fog Lights System Check

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