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Home >> Ford >> 2011 >> Edge SEL, FWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Anti-Theft - Passive Anti-Theft System (Pats) >> Diagnosis And Testing >> Anti-Theft - With Intelligent Access (IA) >> Normal Operation >> Pinpoint Test I: The Vehicle Does Not Start With The IA Key In Certain Areas Within The Vehicle

Pinpoint Test I: The Vehicle Does Not Start With The IA Key In Certain Areas Within The Vehicle

  1. I1 CHECK THE IA KEY LOCATION 
    • Check the location of the IA  key and if it is placed in the far corners of the interior of the vehicle, move the IA  key out of these areas and attempt to start the vehicle.
    • Does the vehicle start? 
    • Yes:  The system is OK. INFORM the customer of the normal vehicle operation.
    • No:  GO to  I2.
  2. I2 CHECK FOR ENVIRONMENTAL INTERFERENCE 
    • Check for the use of any charger or other wireless device that can cause interference with the IA  key. If any device is found, remove the device and attempt to start the engine.
    • Does the engine start? 
    • Yes:  INFORM the customer of the cause of the concern and the normal operation of the vehicle.
    • No:  GO to  I3.
  3. I3 CHECK THE SUSPECT PASSIVE START ANTENNA 
    • Ignition OFF.
    • Disconnect: Suspect Passive Start Antenna.
    • Measure the resistance between the suspect passive start antenna pin 1, component side and the suspect passive start antenna pin 2, component side.
      Fig 1: Identifying Measuring Resistance Between Suspect Passive Start Antenna Pin 1 And Suspect Passive Start Antenna Pin 2 Connector End View
      G06077594Courtesy of FORD MOTOR CO.
    • Is the resistance between 1 and 10 ohms? 
  4. I4 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE 
    • Disconnect: RFA Module C2153A.
    • Ignition ON.
    • Measure the voltage between the suspect passive start antenna, harness side and ground as follows:
      CONNECTOR-PIN REFERENCE CHART

      Suspect Passive Start Antenna Connector-Pin Circuit
      Front C325-1 VPK05 (BN/GN)
      Front C325-2 RPK05 (YE/OG)
      Center C326-1 VPK06 (GY/VT)
      Center C326-2 RPK06 (BU/WH)
      Rear C4378-1 VPK08 (WH/OG)
      Rear C4378-2 RPK08 (BN/VT)
      Fig 2: Identifying Measuring Voltage Between Suspect Passive Start Antenna And Ground Connector End View
      G06077595Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes:  GO to  I5.
    • No:  REPAIR the circuit in question for a short to voltage. TEST the system for normal operation.
  5. I5 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between the suspect passive start antenna, harness side and ground as follows:
      CONNECTOR-PIN REFERENCE CHART

      Suspect Passive Start Antenna Connector-Pin Circuit
      Front C325-1 VPK05 (BN/GN)
      Front C325-2 RPK05 (YE/OG)
      Center C326-1 VPK06 (GY/VT)
      Center C326-2 RPK06 (BU/WH)
      Rear C4378-1 VPK08 (WH/OG)
      Rear C4378-2 RPK08 (BN/VT)
      Fig 3: Identifying Measuring Resistance Between Suspect Passive Start Antenna And Ground Connector End View
      G06077596Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes:  GO to  I6.
    • No:  REPAIR the circuit in question for a short to ground. TEST the system for normal operation.
  6. I6 CHECK THE CIRCUITS FOR AN OPEN 
    • Measure the resistance between the RFA module C2153A, harness side and the suspect passive start antenna connector, harness side as follows:
      CONNECTOR-PIN REFERENCE CHART

      RFA  Module Connector-Pin Suspect Passive Start Antenna Connector-Pin Circuit
      C2153A-1 Front C325-1 VPK05 (BN/GN)
      C2153A-2 Front C325-2 RPK05 (YE/OG)
      C2153A-3 Center C326-1 VPK06 (GY/VT)
      C2153A-4 Center C326-2 RPK06 (BU/WH)
      C2153A-5 Rear C4378-1 VPK08 (WH/OG)
      C2153A-14 Rear C4378-2 RPK08 (BN/VT)
      Fig 4: Identifying Measuring Resistance Between RFA Module And Suspect Passive Start Antenna Connector Terminal Identification
      G07402589Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes:  GO to  I7.
    • No:  REPAIR the circuit in question for an open. CLEAR the DTCs. REPEAT the self-test.
  7. I7 CHECK FOR CORRECT RFA MODULE OPERATION 
    • Disconnect all the RFA module connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the RFA module 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 RFA module.

      REFER to MULTIFUNCTION ELECTRONIC MODULES . 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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