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 Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Do the low beam headlamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 15 |
4 | Connect a fused jumper wire between the switch side input circuit and the switch side output circuit of the lighting relay. Do the low beam headlamps illuminate? | Go to Step 5 | Go to Step 8 |
5 |
Does the test lamp illuminate? | Go to Step 6 | Go to Step 16 |
6 | Connect a test lamp between the coil side voltage supply circuit and the coil side control circuit of the lighting relay. Does the test lamp illuminate? | Go to Step 12 | Go to Step 7 |
7 |
Does the test lamp illuminate? | Go to Step 13 | Go to Step 17 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 18 |
9 | Probe the coil side voltage supply circuit of the lighting high low relay with a test lamp that is connected to ground. Does the test lamp illuminate? | Go to Step 10 | Go to Step 19 |
10 | Connect a test lamp between the coil side voltage supply circuit and the coil side control circuit of the lighting high low relay. Does the test lamp illuminate? | Go to Step 14 | Go to Step 11 |
11 |
Does the test lamp illuminate? | Go to Step 13 | Go to Step 20 |
12 | Inspect for poor connections at the lighting relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 21 |
13 | Inspect for poor connections at the multifunction switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 22 |
14 | Inspect for poor connections at the lighting high low relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 24 | Go to Step 23 |
15 | Repair an open or high resistance in the switch side input circuit of the lighting relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
16 | Repair an open or high resistance in the coil side voltage supply circuit of the lighting relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
17 | Repair an open or high resistance in the coil side control circuit of the lighting relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
18 | Repair an open or high resistance in the switch side low beam voltage supply circuit of the lighting high low relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
19 | Repair an open or high resistance in the coil side voltage supply circuit of the lighting high low relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
20 | Repair an open or high resistance in the coil side control circuit of the lighting high low relay. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 24 | -- |
21 | Replace the lighting relay. Did you complete the replacement? | Go to Step 24 | -- |
22 | Replace the multifunction switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 24 | -- |
23 | Replace the lighting high low relay. Did you complete the replacement? | Go to Step 24 | -- |
24 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
