Keyless Entry - Transmitter Range Too Short
NUMBER: 08-047-06GROUP: Electrical
DATE: November 04, 2006
SUBJECT:
Severe Reduction In RKE Signal Range On Vehicles Equipped With Remote Start
OVERVIEW:
This bulletin involves verifying the electrical connection between the Wireless Control Module (WCM) and the antenna lead for the remote start I keyless entry system.
MODELS:
2007 (ND) Dakota
NOTE:
This bulletin applies to vehicles equipped with the Remote Start System (sales code XBM) and built prior to February 01, 2007 (MDH 0201XX).
SYMPTOM/CONDITION:
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 a damaged or loose antenna lead connector at the Wireless Control Module (WCM).
DIAGNOSIS:
1. Using the vehicle key fob and standing outside of the vehicle, verify that the RKE system operates properly when standing 6 meters (20 feet) away from the left front (drivers) door. Does the RKE system operate properly?
a. If YES >> then proceed to the next step.
b. If NO >> then proceed to step 3.
2. Using the vehicle key fob and standing outside of the vehicle, verify that the RKE system operates properly when standing 30 meters (100 feet) away from the left front (drivers) door. Does the RKE system operate properly?
a. If YES >> then STOP. The RKE system is operating correctly.
b. If NO >> then perform the Repair Procedure.
3. Sit in the driver seat. Using the key fob, do the RKE system functions operate properly?
a. If YES >> then perform the Repair Procedure.
b. If NO >> then this bulletin does not apply. Further diagnosis is required of the vehicle key fob(s) and/or WCM.
PARTS REQUIRED:
REPAIR PROCEDURE:
1. Remove instrument panel / steering column trim components to obtain access to the WCM.
2. Located on the body of the WCM is a coax connection for the antenna electrical lead. Pull on the antenna lead to determine if the coax connection is properly connected to the WCM.
3. If the coax connection is loose, then attempt to connect the coax connector to the WCM. Verify that coax connection can be made and that the RKE system operates properly at 30 meters (100 feet). Is the coax connection secure and does the RKE system operate properly?
a. If YES >> then STOP. Repair is complete.
b. If NO >> then proceed to the next step.
4. Disconnect the antenna lead coax connector from the WCM. Carefully inspect the antenna lead coax connector for damage (bent pins). Look closely and carefully. Is the antenna lead coax connector damaged?
a. If YES >> then replace the antenna. Verify that the RKE system operates properly at 30 meters (100 feet).
b. If NO >> then proceed to the next step.
NOTE:
The antenna is located on top of the instrument panel (I/P), beneath the top cover / defroster outlet unit. Replacement of the antenna will require removal of the I/P top cover, steering column opening cover, cluster bezel, instrument cluster, and steering column shrouds.
5. Inspect the antenna lead coax cable for being pinched.
a. If YES >> then replace the antenna. Verify that the RKE system operates properly at 30 meters (100 feet).
b. If NO >> then proceed to the next step.
6. Replace the antenna. Does the RKE system operate properly at 30 meters (100 feet).
a. If YES >> then STOP. Repair is complete.
b. If NO >> then obtain additional technical assistance.
7. Install the previously removed instrument panel / steering column body trim components.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.