Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Headlight Leveling Schematics Connector End View Reference: Lighting Systems Connector End Views or Body Control System Connector End Views in Body Control System. | |||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |
2 |
Does the system operate normally? | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
3 | Is a specific switch position inoperative while the others operate correctly? | Go to Step 11 | Go to Step 4 |
4 | Are both headlamp leveling motors inoperative? | Go to Step 5 | Go to Step 8 |
5 | Test the ignition 1 voltage circuit of the switch and motors for high resistance, an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 6 |
6 | Test the ground circuit of the switch for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 7 |
7 | Test the headlamp leveling motor supply voltage circuit of the switch for high resistance, an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 11 |
8 | Test the ignition 1 voltage circuit of the motor for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 9 |
9 | Test the ground circuit of the motor for high resistance or an open. 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 |
10 | Test the headlamp leveling motor supply voltage circuit of the motor for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 15 | Go to Step 12 |
11 | Inspect for poor connections at the headlamp leveling 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 |
12 | Inspect for poor connections at the headlamp leveling motor. 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 |
13 | Replace the headlamp leveling switch. Refer to Headlamp Leveling Switch Replacement . Did you complete the replacement? | Go to Step 15 | -- |
14 | Replace the headlamp leveling motor. Did you complete the replacement? | Go to Step 15 | -- |
15 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
