Headlamps Inoperative - High Beams
Headlamps Inoperative - High Beams
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems |
|||
| 1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Is only one high beam headlamp inoperative? | Go to Step 7 | Go to Step 4 |
| 4 | Place the headlamp dimmer switch in the flash to pass position. Do the high beam headlamps operate in the flash to pass position? |
Go to Step 13 | Go to Step 5 |
| 5 | Place the headlamp dimmer switch in the high beam position. Does the high beam indicator illuminate? |
Go to Step 12 | Go to Step 6 |
| 6 | Test for a high resistance, an open or a short to battery positive voltage in the high beam signal circuit of the headlamp dimmer switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 17 | Go to Step 13 |
| 7 |
|
Go to Step 8 | Go to Step 9 |
| 8 | Connect a test lamp between the headlamp high beam signal circuit and the battery positive voltage circuit of the inoperative high beam headlamp. Does the test lamp illuminate? |
Go to Step 11 | Go to Step 10 |
| 9 | Test for a high resistance or an open in the battery positive voltage circuit of the inoperative headlamp. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 17 | Go to Step 12 |
| 10 | Test for a high resistance or an open in the headlamp high beam signal 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 17 | Go to Step 12 |
| 11 | 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 17 | Go to Step 14 |
| 12 | Inspect for poor connections at the harness connector of the fuse block - underhood. 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 17 | Go to Step 15 |
| 13 | 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 17 | Go to Step 16 |
| 14 | Replace the inoperative headlamp. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement . Did you complete the repair? |
Go to Step 17 | - |
| 15 | Replace the fuse block - underhood. Refer to Underhood Electrical Center or Junction Block Replacement
in Wiring Systems. Did you complete the repair? |
Go to Step 17 | - |
| 16 | Replace the headlamp dimmer switch. Refer to Multifunction, Turn Signal Switch Replacement
in Steering Wheel and Column. Did you complete the repair? |
Go to Step 17 | - |
| 17 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |