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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test M: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance >> Testing

Pinpoint Test M: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance: Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: All RKE transmitters must be present to begin diagnosis of the RKE system.
NOTE: Aftermarket or dealer-installed systems may adversely affect RKE system operation. These systems should be disconnected before diagnosing any RKE concerns.
  1. M1 CHECK FOR THE CORRECT RKE TRANSMITTERS 
    • Check that the correct RKE transmitters are used with the vehicle.
      • Make sure the RKE transmitters are those provided with the OEM system and not from an aftermarket system or a dealer-installed system.
    • Are all the correct RKE transmitters present? 
    • Yes  : GO to M2.
    • No  : The system cannot be tested without the correct RKE transmitters. INFORM the customer that all the correct RKE transmitters need to be present to proceed with diagnosis of the system.
  2. M2 CHECK ALL THE RKE TRANSMITTERS FOR POOR RANGE PERFORMANCE 
    NOTE: The 3 m (10 ft) measurement of range is not the standard but is a guideline that clearly indicates a vehicle is experiencing poor range performance.
    • Check all the RKE transmitters for poor range performance (less than 3 m or 10 ft).
    • Do all RKE transmitters experience poor range? 
    • Yes  : GO to M3.
    • No  : REPLACE the inoperative RKE transmitter and PROGRAM all the RKE transmitters, REFER to REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any RKE transmitters not present need to be programmed. CLEAR the DTCs. TEST the system for normal operation.
  3. M3 CHECK THE LOCATION OF THE VEHICLE AND THE APPROACH ANGLES AROUND THE VEHICLE 
    • Make sure the poor performance is consistent in nature and is not from one approaching angle.
    • The RKE transmitter range performance may be degraded in certain locations. For example, if the vehicle is within 0.8 km (0.5 miles) of high-power devices or radio/TV towers, the operating distance of the RKE transmitters may be reduced.
    • Is the poor range performance consistent around the vehicle? 
    • Yes  : GO to M4.
    • No  : The system is operating correctly at this time. TEST the system for normal operation.
  4. M4 CHECK THE SMART JUNCTION BOX (SJB) FOR CORRECT OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the SJB connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . PROGRAM all the RKE transmitters, REFER to REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any RKE transmitters not present need to be programmed. TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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