Headlamps Inoperative - High Beams Domestic
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics DEFINITION: The high beam headlamps are inoperative, low beam headlamps operate properly. | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the high beam headlamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are both high beam headlamps inoperative? | Go to Step 4 | Go to Step 6 |
4 | Backprobe the high beam supply voltage circuit of connector C201 with a test lamp that is connected to a good ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 9 |
5 | Backprobe the high beam supply voltage circuit of the underhood junction block connector with a test lamp that is connected to a good ground. Does the test lamp illuminate? | Go to Step 10 | Go to Step 11 |
6 | Probe the high beam supply voltage circuit of the inoperative headlamp with a test lamp that is connected to a good ground. Does the test lamp illuminate? | Go to Step 8 | Go to Step 7 |
7 | Test for an open or high resistance in the supply voltage circuit of the inoperative high beam headlamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 10 |
8 | 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 12 |
9 | Inspect for poor connections at the harness connector of the turn signal 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 |
10 | Inspect for poor connections at the harness connector of the underhood junction block. 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 |
11 | Repair an open or high resistance in the high beam supply voltage circuit of the underhood junction block. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
12 | Replace the inoperative headlamp. Refer to Headlamp Assembly or Headlamp Bulb Replacement . Did you complete the repair? | Go to Step 15 | -- |
13 | Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column. Did you complete the repair? | Go to Step 15 | -- |
14 | Replace the underhood junction block. Refer to Underhood Electrical Center or Junction Block Replacement in Wiring Systems. Did you complete the repair? | 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 |
Headlamps Inoperative - High Beams Export
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics DEFINITION: The high beam headlamps are inoperative, low beam headlamps operate properly. | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the high beam headlamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are both high beam headlamps inoperative? | Go to Step 5 | Go to Step 4 |
4 | Inspect the corresponding fuse of the inoperative high beam headlamp for an open. Is the RH or LH HEAD LP high fuse open? | Go to Step 12 | Go to Step 7 |
5 | Place the headlamp dimmer switch in the flash to pass position. Does the flash to pass feature operate? | Go to Step 9 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 10 | Go to Step 9 |
7 | Probe the high beam supply voltage circuit of the inoperative headlamp with a test lamp that is connected to a good ground. Does the test lamp illuminate? | Go to Step 8 | Go to Step 11 |
8 | 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 13 |
9 | Inspect for poor connections at the harness connector of the turn signal 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 14 |
10 | Repair an open or high resistance in the high beam supply voltage circuit of the headlamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
11 | Repair an open or high resistance in the supply voltage circuit of the inoperative high beam headlamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
12 | Repair a short to ground in the high beam supply voltage circuit of the inoperative headlamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 15 | -- |
13 | Replace the inoperative headlamp. Refer to Headlamp Assembly or Headlamp Bulb Replacement . Did you complete the repair? | Go to Step 15 | -- |
14 | Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column. Did you complete the repair? | 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 |
