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

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. 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. G1 CHECK THE PUDDLE LAMP OPERATION 
    • Open any door and observe the puddle lamps.
    • Are both the puddle lamps inoperative? 
    1. YES  : Go to  G2.
    2. NO  : Go to  G3.
  2. G2 CHECK CIRCUIT CLN25 (VT) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280c
      NOTE: If the fuse fails, repair circuit CLN25 (VT) for a short to ground.
    • Connect a fused (5A) jumper wire between the SJB C2280c-12, circuit CLN25 (VT), harness side and battery positive.
      • Fig 1: Connecting Fused (10A) Jumper Wire Between SJB C2280C-12, Circuit CLN25 (VT) & Battery Positive
      GF0032335Courtesy of FORD MOTOR CO.
    • Do the puddle lamps illuminate? 
    1. YES  : REMOVE the jumper wire. Go to  G5.
    2. NO  : REMOVE the jumper wire. 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. G3 CHECK THE EXTERIOR MIRROR 
    NOTE: Make sure the suspect puddle lamp bulb is OK before continuing diagnostics.
    • 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 as follows:
      Location Connector-Pin/ Circuit Connector-Pin/ Circuit
      LH exterior mirror C516-5
      CLN25 (VT)      		 C516-7
      GD133 (BK)
      RH exterior mirror C625-5
      CLN25 (VT)      		 C625-7
      GD148 (BK/YE)
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new exterior mirror in question. REFER to REAR VIEW MIRRORS article. TEST the system for normal operation.
    2. NO  : Go to  G4.
  4. G4 CHECK CIRCUIT CLN25 (VT) FOR AN OPEN (INDIVIDUAL PUDDLE LAMP INOPERATIVE) 
      NOTE: The courtesy lamps must be active during this test.
    • Open any door.
    • Measure the voltage between the LH exterior mirror connector C516-5, circuit CLN25 (VT), harness side and ground; or between the RH exterior mirror connector C625-5, circuit CLN25 (VT), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : For the LH exterior mirror, REPAIR circuit GD133 (BK) for an open. TEST the system for normal operation.
    2. For the RH exterior mirror, REPAIR circuit GD148 (BK/YE) for an open. TEST the system for normal operation.
    3. NO  : REPAIR circuit CLN25 (VT) for an open. TEST the system for normal operation.
  5. G5 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 article. 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.
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