Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that the headlight leveling is inoperative. Does the headlight leveling operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Inspect the IGN E fuse in the underhood fuse block. Is the fuse good? | -- | Go to Step 5 | Go to Step 4 |
4 | Repair short to ground in CKT 639 (PNK) or one of the other circuits fed off the IGN E fuse. Refer to Wiring Repairs in Wiring Systems and Power Distribution Schematics in Wiring Systems. Is the repair complete? | -- | Go to Step 18 | -- |
5 | With ignition switch in RUN, connect a test lamp from ground to terminal 3 of the headlamp leveling actuator connector (RH/LH). Refer to Circuit Testing in Wiring Systems. Does the lamp light? | -- | Go to Step 7 | Go to Step 6 |
6 | Locate and repair open or high resistance in CKT 639 (PNK) from the headlamp leveling actuator to the underhood fuse block. Refer to Wiring Repairs in Wiring Systems. Is repair complete? | -- | Go to Step 18 | -- |
7 | Connect a J 39200 Digital Multimeter (DMM) from ground to terminal 1 of the headlamp actuator connector (RH/LH) and check for continuity. Refer to Circuit Testing in Wiring Systems. Is there continuity? | -- | Go to Step 9 | Go to Step 8 |
8 | Locate and repair open or high resistance in CKT 1050 (BLK). Refer to Wiring Repairs in Wiring Systems. Is repair complete? | -- | Go to Step 18 | -- |
9 | Connect a DMM from ground to terminal 2 of the headlamp leveling actuator connector (RH/LH) and adjust the headlamp leveling switch from highest to lowest setting. Refer to Circuit Testing in Wiring Systems. Does the DMM indicate within the specified range? | 2.0 V-8.0 V | Go to Step 10 | Go to Step 11 |
10 | Replace the headlamp leveling actuator (RH/LH) as applicable. Is repair complete? | -- | Go to Step 18 | -- |
11 | Connect a J 39200 DMM from ground to terminal 31A of the headlamp leveling switch and check for continuity. Refer to Circuit Testing in Wiring Systems. Is there continuity? | -- | Go to Step 13 | Go to Step 12 |
12 | Locate and repair open or high resistance in CKT 1050. Refer to Wiring Repairs in Wiring Systems. Is repair complete? | -- | Go to Step 18 | -- |
13 | Connect a test lamp from ground to terminal 56B of the headlamp leveling switch connector. Refer to Circuit Testing in Wiring Systems. Does the lamp light? | -- | Go to Step 15 | Go to Step 14 |
14 | Locate and repair the open, high resistance or short to ground in CKT 639 (PNK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 18 | -- |
15 | Connect a test lamp from ground to terminal G of the headlamp leveling switch connector and adjust the headlamp leveling switch from highest to lowest setting. Refer to Circuit Testing in Wiring Systems. Does the lamp go from bright dimming down to off? | -- | Go to Step 17 | Go to Step 16 |
16 | Replace headlamp leveling switch. Is the repair complete? | -- | Go to Step 18 | -- |
17 | Locate and repair the open or high resistance in CKT 189 (DK GRN) between the switch and the headlamp leveling actuator (RH/LH). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
