Step | Action | Yes | No | ||||
---|---|---|---|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Lighting Systems Connector End Views | |||||||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |||||
2 | Verify that the low and high beam headlamps are inoperative. Do the headlamps operate normally? | 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 8 | Go to Step 4 | ||||
4 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 5 | ||||
5 |
Was a problem found? | Go to Step 13 | Go to Step 6 | ||||
6 | Test the headlamp power relay for an internal short to the ground terminal. Refer to Circuit Testing in Wiring Systems. Was a problem found? | Go to Step 14 | Go to Step 10 | ||||
7 | Connect a test lamp between the relay connector terminals of the headlamp relay coil supply voltage circuit and ground circuit in the underhood fuse block. Refer to Electrical Center Identification Views and Circuit Testing in Wiring Systems. Does the test lamp illuminate? | Go to Step 14 | Go to Step 11 | ||||
8 | Test the headlamp dimmer switch signal circuit for continuity to ground. Refer to Circuit Testing in Wiring Systems. Was a problem found? | Go to Step 9 | Go to Step 15 | ||||
9 | Test the following circuits for an open or high resistance. Refer to Circuit Testing in Wiring Systems:
Was a problem found? | Go to Step 12 | Go to Step 16 | ||||
10 | Repair the open, high resistance or short to ground in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 17 | -- | ||||
11 | Repair the open or high resistance in the headlamp power relay ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- | ||||
12 | Repair the open or high resistance in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 17 | -- | ||||
13 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 17 | -- | ||||
14 | Replace the headlamp power relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- | ||||
15 | Replace the multifunction headlamp dimmer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Did you complete the repair? | Go to Step 17 | -- | ||||
16 | Replace the headlamp grounding relay. Refer to Relay Replacement in Wiring Systems. 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 3 |
Step | Action | Yes | No | ||||
---|---|---|---|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Lighting Systems Connector End Views | |||||||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |||||
2 | Verify that the low and high beam headlamps are inoperative. Do the headlamps operate normally? | 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 9 | Go to Step 4 | ||||
4 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 5 | ||||
5 |
Was a problem found? | Go to Step 6 | Go to Step 15 | ||||
6 | Test the headlamp power relay for an internal short to the ground terminal. Refer to Circuit Testing in Wiring Systems. Was a problem found? | Go to Step 16 | Go to Step 11 | ||||
7 | Connect a test lamp between the relay connector terminals of the headlamp relay coil supply voltage circuit and ground circuit in the underhood fuse block. Refer to Electrical Center Identification Views and Circuit Testing in Wiring Systems. Does the test lamp illuminate? | Go to Step 8 | Go to Step 12 | ||||
8 | Test the following circuits for an open, high resistance or short to ground. Refer to Circuit Testing in Wiring Systems:
Was a problem found? | Go to Step 13 | Go to Step 16 | ||||
9 | Test the headlamp dimmer switch signal circuit for continuity to ground. Refer to Circuit Testing in Wiring Systems. Was a problem found? | Go to Step 10 | Go to Step 17 | ||||
10 | Test the following circuits for an open or high resistance. Refer to Circuit Testing in Wiring Systems:
Was a problem found? | Go to Step 14 | Go to Step 18 | ||||
11 | Repair the open, high resistance or short to ground in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 19 | -- | ||||
12 | Repair the open or high resistance in the headlamp power relay ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 19 | -- | ||||
13 | Repair the open, high resistance or short to ground in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 19 | -- | ||||
14 | Repair the open or high resistance in one of the following circuits. Refer to Wiring Repairs in Wiring Systems:
Did you complete the repair? | Go to Step 19 | -- | ||||
15 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 19 | -- | ||||
16 | Replace the headlamp power relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 19 | -- | ||||
17 | Replace the multifunction headlamp dimmer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Did you complete the repair? | Go to Step 19 | -- | ||||
18 | Replace the daytime running lamp (DRL) relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 19 | -- | ||||
19 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |