LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 2009 >> MKX FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1100 (Interior Lighting System) >> Diagnostic Tests >> Interior Lighting >> Pinpoint Tests >> Pinpoint Test I: The Puddle Lamp(s) are Inoperative >> Pinpoint Test I: The Puddle Lamp(S) Are Inoperative

Pinpoint Test I: The Puddle Lamp(S) Are Inoperative

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. I1 CHECK THE PUDDLE LAMP OPERATION 
    • Open any door and observe the puddle lamps.
    • Are both the puddle lamps inoperative? 
    1. YES  : Go to  I2.
    2. NO  : Go to  I3.
  2. I2 CHECK CIRCUIT CLN25 (VT) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280c
      • Fig 1: Connecting Fused (10A) Jumper Wire Between SJB C2280C-12, Circuit CLN25 (VT) & Battery Positive
      GF0032335Courtesy of FORD MOTOR CO.
      NOTE: If the fuse fails, repair circuit CLN25 (VT) for a short to ground.
    • Connect a fused (10A) jumper wire between the SJB C2280c-12, circuit CLN25 (VT), harness side and battery positive.
    • Do the puddle lamps illuminate? 
    1. YES  : REMOVE the jumper wire. Go to  I5 .
    2. NO  : REPAIR the circuit. RUN the on-demand self-test (required to clear certain DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
  3. I3 CHECK CIRCUIT CLN25 (VT) FOR AN OPEN 
    • Disconnect: Suspect Exterior Mirror
      • NOTE: The courtesy lamps must be active during this test.
    • Open any door.
    • Measure the voltage between the suspect exterior mirror connector, harness side and ground as follows:
      Location Connector-Pin Circuit
      RH exterior mirror C622-5 CLN25 (VT)
      LH exterior mirror C516-5 CLN25 (VT)
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  I4.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  4. I4 CHECK THE GROUND CIRCUIT FOR AN OPEN 
    • Measure the resistance between the suspect exterior mirror connector, harness side and ground as follows:
      Location Connector-Pin Circuit
      RH exterior mirror C622-6 GD140 (BK/GN)
      LH exterior mirror C516-6 GD133 (BK)
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new exterior mirror in question. REFER to REAR VIEW MIRRORS . TEST the system for normal operation.
    2. NO  : REPAIR the circuit in question. TEST the system for normal operation.
  5. I5 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • damaged pins
      • 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? 
    1. YES  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. RUN the on-demand self-test (required to clear certain DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
scientia non olet · About LEMON Manuals