Illuminated Entry Inoperative

SYMPTOM
* ILLUMINATED ENTRY INOPERATIVE

POSSIBLE CAUSES
- DRB displays bus error message
- Link to communication bus inoperative
- Power door lock switches inoperative
- RKE transmitter batteries defective-low voltage
- Door lock motor no operate w/jumper lock CTRL-GND
- Courtesy lamps driver circuit open
- Door lock control circuit open
- Door unlock control circuit open
- NO courtesy lamps from door JAMB & DASH switches
- RKE module defective-door lock CTRL function
- Fused B(+) circuit from IOD fuse open
- Passenger door module defective-lock CTRL function