Step  | Action  | Yes  | No  | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Interior Lights Dimming Schematics  | |||||||||
1  | Did you perform the Lighting Systems Diagnostic System Check?  | Go to Step 2  | |||||||
2  | Verify that the memory/heated switch backlighting is inoperative. Does the memory/heated switch backlighting operate normally?  | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems  | Go to Step 3  | ||||||
3  | Are any other dimmable interior backlighting lamps inoperative?  | Go to Step 4  | |||||||
4  | 
 
 
 Did you find and correct a condition?  | Go to Step 10  | Go to Step 5  | ||||||
5  | Use a test lamp connected to B+ to backprobe the memory/heated seat switch illumination control circuit terminal at the driver door module (DDM) connector. Does the test lamp illuminate?  | Go to Step 7  | Go to Step 6  | ||||||
6  | Inspect for poor connections at the harness connector of the DDM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | Go to Step 10  | Go to Step 8  | ||||||
7  | Inspect for poor connections at the harness connector of the memory/heated seat switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | Go to Step 10  | Go to Step 9  | ||||||
8  | 
 Important: Perform the setup procedure for the driver door module (DDM). Replace the DDM. Refer to Door Lock and Side Window Switch Replacement - Driver Side in Doors. Did you complete the replacement?  | Go to Step 10  | --  | ||||||
9  | Replace the memory/heated seat switch. Refer to Driver Seat Adjuster Memory Switch Replacement in Seats. Did you complete the replacement?  | Go to Step 10  | --  | ||||||
10  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  | ||||||