Troubleshooting Hints
1. Check GAUGES, RADIO, CTSY Fuses for open If fuse(s) is open, LOCATE and REPAIR source of overload. Replace fuse(s). Check that the PWR ACCY Circuit Breaker is resetting. IF Circuit Breaker will not reset, replace breaker.2. Always check terminal contact before replacing any component.
3. Ensure power door lock functions before beginning Remote Keyless Entry diagnosis. refer Power Door Locks. Testing and Inspection
4. Ensure Rear Endgate Window Release functions before beginning Keyless Entry diagnosis. Refer to Endgate Window Release. Doors, Hood and Trunk
5. If door locks operate from the transmitter, but not from the door lock switches, check continuity of door lock switch and associated wiring for an open or a short. Repair/relace as necessary.
6. If a second transmitter is available, try it. If it works, remove the batteries and install them in the first transmitter. If the first transmitter still doesn't work, it is defective.
7. Check transmitter battery terminals. They should be clean and make good contact with the battery.
8. If in doubt as to the condition of the transmitter batteries, replace them with new ones. Measuring battery voltage with a DMM may show a weak battery as being good.