Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
SCHEMATIC REFERENCE: Headlights Schematics | ||||
1 | Did you perform the Lighting System Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the test lamp illuminate? | -- | Go to Step 3 | Go to Step 9 |
3 | Connect a test lamp between the switch side feed circuit of the low beam headlamp relay and a good ground. Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 10 |
4 |
Does the test lamp turn ON and OFF with each command? | -- | Go to Step 5 | Go to Step 8 |
5 |
Did the low beam headlamps illuminate? | -- | Go to Step 6 | Go to Step 11 |
6 | Inspect for poor connections at the low beam relay. 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 14 | Go to Step 7 |
7 | Replace the low beam headlamp relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the replacement? | -- | Go to Step 14 | -- |
8 | Test the control circuit of the low beam headlamp relay for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 12 |
9 | Repair the open or high resistance in the coil side feed circuit of the low beam headlamp relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- |
10 | Repair the open or high resistance in the switch side feed circuit of the low beam headlamp relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- |
11 | Repair the open or high resistance in the low beam headlamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 14 | -- |
12 | Inspect for poor connections at the dash integration module (DIM). 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 14 | Go to Step 13 |
13 | Replace the DIM. Refer Dash Integration Module Replacement in Body Control System. Did you complete the replacement? | -- | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 2 |
