Low and High Beams Headlamps Inoperative Pontiac
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlights Schematics | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the headlamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are the high beam and the low beam inoperative on only one headlamp? | Go to Step 6 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 7 |
5 | Connect a fused jumper between the battery positive voltage circuit and the headlamp supply voltage circuit of the headlamp switch. Refer to Circuit Testing in Wiring Systems. Do the headlamps illuminate? | Go to Step 8 | Go to Step 12 |
6 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 10 |
7 | Test for an open or short to ground in the battery positive voltage circuit of the headlamp switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and complete the repair? | Go to Step 15 | Go to Step 11 |
8 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 13 |
9 | Inspect for poor connections at the harness connector of the inoperative headlamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 14 |
10 | Repair an open or a high resistance in the ground circuit of the inoperative headlamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
11 | Repair a short to ground in the headlamp supply voltage circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
12 | Repair an open or a high resistance in the headlamp supply voltage circuit of the headlamp switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
13 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 15 | -- |
14 | Replace the inoperative headlamp. Refer to Headlamp Replacement . Did you complete the replacement? | Go to Step 15 | -- |
15 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Low and High Beams Headlamps Inoperative Chevrolet Domestic, Chevrolet Exports
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlights Schematics | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the headlamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 6 |
4 | Install a fused jumper between the battery positive voltage circuit and the supply voltage circuit of the headlamp switch. Refer to Circuit Testing in Wiring Systems. Do the headlamps illuminate? | Go to Step 8 | Go to Step 5 |
5 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 9 |
6 | Test for an open or high resistance in the battery positive voltage circuit of the headlamp switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 10 |
7 | Inspect for poor connections at the harness connector of the headlamp dimmer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 11 |
8 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 12 |
9 | Repair an open or high resistance in the headlamp supply voltage circuit of the headlamp dimmer switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 13 | -- |
10 | Repair a short to ground in the headlamp supply voltage circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 13 | -- |
11 | Replace the headlamp dimmer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column. Did you complete the replacement? | Go to Step 13 | -- |
12 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 13 | -- |
13 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
