Step | Action | Value | Yes | No |
|---|---|---|---|---|
Schematic Reference: Headlight Leveling Schematics | ||||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Does the headlamp leveling feature operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only one of the headlamp leveling actuators inoperative? | -- | Go to Step 9 | Go to Step 4 |
4 | Is the headlamp leveling switch backlighting inoperative? | -- | Go to Step 7 | Go to Step 5 |
5 |
Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 17 |
6 |
Does the resistance measure near the specified value? | 732 ohms --Coupe 649 ohms --Convertible | Go to Step 13 | Go to Step 12 |
7 |
Does the test lamp illuminate? | -- | Go to Step 8 | Go to Step 19 |
8 | Probe the backlighting ground circuit of the headlamp leveling switch connector with a test lamp that is connected to battery voltage. Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 20 |
9 |
Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 17 |
10 | Probe the ground circuit of the inoperative headlamp leveling actuator motor with a test lamp that is connected to battery voltage. Does the test lamp illuminate? | -- | Go to Step 11 | Go to Step 18 |
11 | Test the for an open or high resistance in the bit 2 signal 869 circuit of the inoperative headlamp leveling actuator motor . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 15 |
12 | Test the for an open, short to ground or short to battery positive voltage in the bit 3 signal 870 circuit of the headlamp leveling switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 14 |
13 | Test the for an open, short to ground or short to battery positive voltage in the bit 2 signal 869 circuit of the headlamp leveling switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 24 | Go to Step 16 |
14 | Inspect for poor connections at the harness connector of the headlamp leveling resister. 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 24 | Go to Step 21 |
15 | Inspect for poor connections at the harness connector of the headlamp leveling actuator 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 24 | Go to Step 22 |
16 | Inspect for poor connections at the harness connector of 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 24 | Go to Step 23 |
17 | Repair an open or high resistance in the inoperative headlamp supply voltage circuit of the headlamp leveling actuator motors. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
18 | Repair an open or high resistance in the ground circuit of the inoperative headlamp leveling actuator motor. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
19 | Repair an open or high resistance in the headlamp supply voltage circuit of the headlamp leveling switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
20 | Repair an open or high resistance in the backlighting ground circuit of the headlamp leveling switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
21 | Replace the headlamp leveling resister. Did you complete the replacement? | -- | Go to Step 24 | -- |
22 | Replace the headlamp leveling actuator motor. Refer to Headlamp Motor/Actuator Replacement . Did you complete the replacement? | -- | Go to Step 24 | -- |
23 | Replace the headlamp leveling switch. Refer to Headlamp Leveling Switch Replacement . 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 2 |
