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 high or low beam headlamps are always ON. Do the high and low beam headlamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||
3 | Does the wiper activated headlamp (WAH) function of the wiper system operate normally? | Go to Step 6 | Go to Step 4 | ||||
4 | With the key in RUN and the wiper switch in the OFF position, use the scan tool to monitor the Front Wipers Active input parameter. Does the scan tool parameter display NO? | Go to Step 14 | Go to Step 5 | ||||
5 | Test the windshield wiper switch signal 2 circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | Go to Step 17 | ||||
6 | Are only the high beam headlamps always ON? | Go to Step 7 | Go to Step 11 | ||||
7 | Disconnect the headlamp dimmer switch. Do the high beam headlamps remain always ON? | Go to Step 8 | Go to Step 13 | ||||
8 | Test the following circuits for a short to ground as applicable. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct a condition? | Go to Step 22 | Go to Step 9 | ||||
9 | Remove the high beam relay. Do the high beam headlamps remain always ON? | Go to Step 15 | Go to Step 10 | ||||
10 | Test for a ground signal at the high beam relay control circuit connector terminal. Refer to Circuit Testing in Wiring Systems. Is a ground control signal present? | Go to Step 14 | Go to Step 19 | ||||
11 | Remove the headlamp low beam relay (HDM). Do the low beam headlamps remain always ON? | Go to Step 16 | Go to Step 12 | ||||
12 | Test for a voltage signal at the headlamp low beam relay control circuit connector terminal. Refer to Circuit Testing in Wiring Systems. Is a voltage control signal present? | Go to Step 14 | Go to Step 20 | ||||
13 | Inspect for poor connections at the harness connector of the headlamp dimmer switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | Go to Step 21 | ||||
14 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 22 | Go to Step 18 | ||||
15 | Repair the short to voltage in the right or left high beam headlamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 22 | -- | ||||
16 | Repair the short to voltage in the right or left low beam headlamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 22 | -- | ||||
17 | Replace the wiper motor. Refer to Windshield Wiper Motor Replacement in Wipers/Washers Systems. Did you complete the repair? | Go to Step 22 | -- | ||||
18 | 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 22 | -- | ||||
19 | Replace the high beam headlamp relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- | ||||
20 | Replace the headlamp low beam relay (HDM). Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 22 | -- | ||||
21 | Replace the headlamp dimmer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column. Did you complete the repair? | Go to Step 22 | -- | ||||
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |