Diagnostic Test
WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
- LOCK/UNLOCK FUNCTION NOTE:
For all RKE tests, the key must be out of the ignition.
Does the Lock/Unlock function with the interior door switches?
Yes
- Go To 2.
No
- Perform Power Lock/Unlock System diagnosis.
- RKE FUNCTION AT 20 FEET
Does the RKE Function at 20 feet?
Yes
- Go To 3.
No
- Go To 4.
- RKE FUNCTION AT 100 FEET
Does the RKE Function at 100 feet?
Yes
- Test complete.
No
- Replace the antenna in accordance with the Service Information.
- WCM/WIN DTCS
Does the WCM/WIN display any DTCs?
Yes
- Perform WCM/WIN diagnosis.
No
- Go To 5.
- RKE FUNCTION INSIDE VEHICLE
- ANTENNA COAX CABLE NOT PROPERLY CONNECTED
- VERIFY COAX CONNECTION AT WCM/WIN
- PINCHED WIRE
- Inspect the ANTENNA Lead COAX Cable for a pinched wire.
Has the COAX cable been pinched or damaged?
Yes
- Replace antenna.
- Go To 2.
No
- Perform WCM/WIN diagnostics.
- Inspect the ANTENNA Lead COAX Cable for a pinched wire.
- RKE FUNCTION INSIDE VEHICLE
- Disconnect the Antenna COAX Cable lead connector to WCM/WIN.
- Sit inside the vehicle. Push the RKE Key Fob Lock/Unlock buttons.
Does the RKE Lock/Unlock work?
Yes
- Replace the antenna.
No
- Go To 10.
- CHECK FOR 12 VOLTS AT WCM/WIN
- Connect the Antenna Lead to WCM/WIN.
- Disconnect the WCM/WIN harness connector.
- Using the appropriate wiring diagrams, check for Fused B+ at the WCM/WIN harness connector.
Is Fused B+ present?
Yes
- Perform WCM/WIN diagnostics.
No
- Repair the appropriate circuits.