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For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 LeSabre 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Fog Lamps Inoperative - All

Fog Lamps Inoperative - All Oldsmobile

Step

Action

Value(s)

Yes

No

1

Did you perform the entire Foglights System Check?

--

Go to Step 2

Go to Fog Lights System Check

2
  1. Place the headlamp switch in the PARK position.
  2. Disconnect the fog lamp switch connector.
  3. Connect a DMM from the fog lamp switch connector cavity A (BRN) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 3

Go to Step 9

3

Connect a DMM from the fog lamp switch connector cavity A (BRN) to cavity B (BLK)

Is the voltage within the specified range?

10-15V

Go to Step 4

Go to Step 10

4
  1. Remove the fog lamps relay from the RH IP fuse block.
  2. Reconnect the fog lamp switch connector.
  3. Turn the fog lamp switch to the ON position.
  4. Connect a DMM from the fog lamps relay connector cavity 85 (YEL) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 5

Go to Step 11

5

Connect a DMM from the fog lamps relay connector cavity 30 (ORN) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 6

Go to Step 13

6

Connect a fused jumper from the fog lamps relay connector cavity 30 (ORN) to cavity 87 (PPL)

Do the fog lamps turn on?

--

Go to Step 7

Go to Step 14

7
  1. Disconnect the lamp control module (LCM) connector C2.
  2. Reinstall the fog lamp relay.
  3. Turn the fog lamp switch to the ON position.
  4. Connect a fused jumper between the LCM connector C2 cavity A4 (DK GRN/WHT) and ground.

Do the fog lamps turn on?

--

Go to Step 8

Go to Step 15

8

Replace the LCM. Refer to Lamp Control Module Replacement .

Is the repair complete?

--

Go to Fog Lights System Check

--

9

Repair the open in CKT 9 (BRN) between S204 and the fog lamp switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

10

Repair the open in CKT 1250 (BLK) between S213 and the fog lamp switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

11

Inspect CKT 317 (YEL) for an open or short to ground. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems.

Is CKT 317 (YEL) OK?

--

Go to Step 12

Go to Step 16

12

Replace the fog lamp switch. Refer to Instrument Cluster Trim Panel Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Fog Lights System Check

--

13

Repair the open in CKT 1440 (ORN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

14

Repair the open or short to ground in CKT 34 (PPL). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

15

Inspect CKT 1317 (DK GRN/WHT) for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1317 (DK GRN/WHT) OK?

--

Go to Step 17

Go to Step 16

16

Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

17

Replace the fog lamps relay.

Is the repair complete?

--

Go to Fog Lights System Check

--

Fog Lamps Inoperative - All Pontiac

Step

Action

Value(s)

Yes

No

1

Did you perform the entire Foglights System Check?

--

Go to Step 2

Go to Fog Lights System Check

2
  1. Turn the headlamp switch to the PARK position.
  2. Disconnect the fog lamp switch connector.
  3. Connect a DMM from the fog lamp switch connector cavity 2 (BRN) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 3

Go to Step 8

3
  1. Remove the fog lamps relay from the RH IP fuse block.
  2. Reconnect the fog lamp switch connector.
  3. Turn the fog lamp switch to the ON position.
  4. Connect a DMM from the fog lamps relay connector cavity 85 (YEL) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 4

Go to Step 9

4

Connect a DMM from the fog lamps relay connector cavity 30 (ORN) to ground.

Is the voltage within the specified range?

10-15V

Go to Step 5

Go to Step 10

5

Connect a fused jumper between the fog lamps relay connector cavity 30 (ORN) and cavity 87 (PPL).

Do the fog lamps turn on?

--

Go to Step 6

Go to Step 11

6
  1. Disconnect the lamp control module (LCM) connector C2.
  2. Reinstall the fog lamps relay.
  3. Turn the fog lamp switch to the ON position.
  4. Connect a fused jumper between the LCM connector C2 cavity A4 (DK GRN/WHT) and ground.

Do the fog lamps turn on?

--

Go to Step 7

Go to Step 12

7

Replace the LCM. Refer to Lamp Control Module Replacement .

Is the repair complete?

--

Go to Fog Lights System Check

--

8

Repair the open in CKT 9 (BRN) between S204 and the fog lamp switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

9

Inspect CKT 317 (YEL) for an open or short to ground. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems.

Is CKT 317 (YEL) OK?

--

Go to Step 13

Go to Step 14

10

Repair the open or short to ground in CKT 1440 (ORN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

11

Repair the open or short to ground in CKT 34 (PPL). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

12

Inspect CKT 1317 (DK GRN/WHT) for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1317 (DK GRN/WHT) OK?

--

Go to Step 15

Go to Step 14

13

Replace the fog lamp switch. Refer to Instrument Cluster Trim Panel Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Fog Lights System Check

--

14

Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Fog Lights System Check

--

15

Replace the fog lamps relay.

Is the repair complete?

--

Go to Fog Lights System Check

--