Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference: Lighting Systems Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems or Wiper/Washer Connector End Views in Wiper/Washer Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify that the low beam headlamps are inoperative. Do the low beam headlamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only one low beam headlamp inoperative? | Go to Step 4 | Go to Step 5 |
4 |
Did you complete the repair? | Go to Step 19 | -- |
5 | Does the wiper activated headlamp (WAH) function of the wiper system operate normally? | Go to Step 8 | Go to Step 6 |
6 |
Does the scan tool display Yes after approximately 3 cycles of the wiper blades? | Go to Step 14 | Go to Step 7 |
7 | Test the windshield wiper switch signal 2 circuit for an open, high resistance, or short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 19 | Go to Step 13 |
8 | Test the headlamp switch signal and ground circuits for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 19 | Go to Step 9 |
9 |
Do the low beam headlamps illuminate? | Go to Step 12 | Go to Step 10 |
10 | Connect a fused jumper from ground to the headlamp low beam relay control circuit terminal at the headlamp low beam relay (HDM) in the underhood fuse block. Do the low beam headlamps illuminate? | Go to Step 14 | Go to Step 11 |
11 | Test the headlamp low beam relay ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 19 | Go to Step 17 |
12 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 18 |
13 | Inspect for poor connections at the harness connector of the wiper motor cover. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 15 |
14 | Inspect for poor connections at the harness connector of the BCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 19 | Go to Step 16 |
15 | Replace the wiper motor. Refer to Windshield Wiper Motor Replacement in Wipers/Washers Systems. Did you complete the repair? | Go to Step 19 | -- |
16 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 19 | -- |
17 | Replace the headlamp low beam relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 19 | -- |
18 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 19 | -- |
19 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |