Low and High Beams Headlamps Inoperative. Pontiac Sun Runner - 4WD (Canada) 1998

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Headlight System Check? | -- | Go to Step 2 | Go to Headlight System Check
2 | Are both headlights inoperative? | -- | Go to Step 3 | Go to Headlamps Inoperative - One Lamp

3

1. Disconnect the headlamp relay 1.
2. Turn the combination switch to the LO position.
3. Connect a fused jumper wire between cavity 2 of the headlamp relay 1 connector and ground.

Do the low beams operate?

--

Go to Step 4

Go to Step 8

4 | Connect a J 35616-200 unpowered test lamp between cavity 1 of the headlamp relay 1 connector and ground. Does the test lamp light? | -- | Go to Step 6 | Go to Step 5
5 | Using a J 35616-200 unpowered test lamp, backprobe cavity 2 of the daytime running lamps (DRL) diode to ground. Does the test lamp light? | -- | Go to Step 9 | Go to Step 14
6 | Test for continuity using a J 39200 between cavity 4 of the headlamp relay 1 and ground. Is there continuity in the BLK wire? | -- | Go to Step 7 | Go to Step 11

7

1. Disconnect the combination switch connector.
2. Test for continuity using a J 39200 between cavity 3 of the headlamp relay 1 connector and cavity 17 of the combination switch connector.

Is there continuity in the PNK/BLU wire?

--

Go to Step 13

Go to Step 12

8

1. Turn the combination switch to the LO position.
2. Backprobe cavity 11 of the combination switch connector with a J 36169-A fused jumper wire to ground.

Do the low beams operate?

--

Go to Step 10

Go to Step 15

9 | Repair the open PNK/WHT wire between cavity 1 of the headlamp relay 1 connector and cavity 2 of the daytime running lamps (DRL) diode connector. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | --
10 | Repair the open YEL/RED wire between cavity 2 of the headlamp relay 1 connector and cavity 11 of the combination switch connector. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | --
11 | Repair the open BLK wire between cavity 4 of the headlamp relay 1 connector and G201. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | --
12 | Repair the open PNK/BLU wire between cavity 3 of the headlamp relay 1 connector and cavity 17 of the combination switch connector. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | --
13 | Replace the headlamp relay 1. Is the replacement complete? | -- | Go to Headlight System Check | --
14 | Replace the daytime running lamps (DRL) diode. Is the replacement complete? | -- | Go to Headlight System Check | --
15 | Replace the combination switch. Is the replacement complete? | -- | Go to Headlight System Check | --