Symptom Related Diagnostic Procedures

REMOTE START INOPERATIVE-ANTENNA

For a complete wiring diagram Refer to Diagrams/Electrical.

Theory of Operation


The customer may notice that the signal range of the Remote Keyless Entry (RKE) system is reduced. The RKE key fob may need to be closer than 3 meters (10 feet) before the functions available on the key fob will operate. This condition may be due to the RKE antenna. The diagnostic flow chart is provide as a diagnostic aid for dealer technician.


Diagnostic Test


1. 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.



2. RKE FUNCTION AT 20 FEET
Does the RKE Function at 20 feet?

Yes


- Go To 3


No


- Go To 5
-



3. RKE FUNCTION AT 100 FEET
Does the RKE Function at 100 feet?

Yes


- Test complete.


No


- Go To 4



4. COAX CABLE DAMAGED
Has the antenna COAX cable been pinched or damaged?

Yes


- Replace the antenna.


No


- Contact STAR Center for assistance.



5. WCM DTCS
Does the WCM display any DTCs?

Yes


- Perform WCM diagnosis.


No


- Go To 6



6. RKE FUNCTION INSIDE VEHICLE
Sit inside the vehicle.
Push the Key Fob RKE Lock/Unlock buttons.
Does the RKE Lock/Unlock work?

Yes


- Go To 7


No


- Go To 10



7. ANTENNA COAX CABLE NOT PROPERLY CONNECTED
Pull on the Antenna COAX cable connector at the WCM.
Did the connector come off without releasing the lock tab (not properly seated)?

Yes


- Connect Antenna
- Go To 2


No


- Go To 8



8. VERIFY COAX CONNECTION AT WCM
Pull Antenna connector off WCM. Verify no bent pins.
Are there any bent pins?

Yes


- Replace antenna.
- Go To 2


No


- Go To 9



9. 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 diagnostics.



10. RKE FUNCTION INSIDE VEHICLE
Disconnect the Antenna COAX Cable lead connector to WCM.
Sit inside the vehicle. Push the RKE Key Fob Lock/Unlock buttons.
Does the RKE Lock/Unlock work?

Yes


- Replace the antenna.


No


- Go To11



11. CHECK FOR 12 VOLTS AT WCM
Connect the Antenna Lead to WCM.
Disconnect the WCM harness connector.
Using the appropriate wiring diagrams, check for Fused B+ at the WCM harness connector.
Is Fused B+ present?

Yes


- Perform WCM diagnostics.


No


- Repair the appropriate circuits.