Headlamps Inoperative - Low and High Beams (With Front Wipers On)

Step	Action	Yes	No
Schematic Reference: Headlights 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	Go to Diagnostic System Check - Lighting Systems
2	Turn ON the ignition, with the engine OFF. Place the headlamp switch in the AUTO position. Place the front windshield wipers in the low position. Do the headlamps operate as expected?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Install a scan tool. With a scan tool, observe the Front Wiper Switch parameter in the BCM data list. Does the scan tool indicate that the Front Wiper Switch parameter states Active?	Go to Step 5	Go to Step 4
4	Test the windshield wiper switch signal 2 circuit for high resistance, an open or a short to ground or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 6
5	Inspect for poor connections at the harness connector of the BCM. 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 9	Go to Step 7
6	Inspect for poor connections at the harness connector of the windshield wiper module. 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 9	Go to Step 8
7	IMPORTANT: Perform the setup procedure for the BCM. Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System.Did you complete the replacement?	Go to Step 9	-
8	Replace the windshield wiper module. Refer to Wiper Motor Replacement in Wipers/Washer Systems. Did you complete the replacement?	Go to Step 9	-
9	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3