LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1013 (Exterior Lighting System) >> Diagnostic Tests >> Turn Signal and Hazard Lamps >> Pinpoint Tests >> Pinpoint Test O: One Turn Signal/Hazard Lamp Is Inoperative >> Pinpoint Test O: One Turn Signal/Hazard Lamp Is Inoperative

Pinpoint Test O: One Turn Signal/Hazard Lamp Is Inoperative

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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. O1 USE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCs) FROM THE SJB SELF-TEST 
    • Key in OFF position.
    • Using the recorded results from the SJB self-test:
    • Were any DTCs recorded? 
    1. YES  : For DTCs B1502, B1506 or C1788, go to  O4 .

      For DTCs B1499 or B1503, go to  O2 .

      For all others, REFER to the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index for correct diagnostics.

    2. NO  : Go to  O2.
  2. O2 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Disconnect: Inoperative Turn Lamp
    • Measure the resistance between the inoperative turn lamp, harness side and ground as follows:
      Inoperative Turn Lamp Connector-Pin Circuit
      LH front C1023-1 57 (BK)
      RH front C1043-1 57 (BK)
      LH side C1123-2 57 (BK)
      RH side C1122-2 57 (BK)
      LH rear C413-1 57 (BK)
      RH rear C416-1 57 (BK)
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  O3.
    2. NO  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
  3. O3 CHECK THE TURN LAMP CIRCUITRY FOR AN OPEN 
    • Disconnect: SJB C2280c (Rear Turn Lamp)
    • Disconnect: SJB C2280b (Front Turn Lamp)
    • Measure the resistance between the SJB, harness side and the inoperative turn lamp as follows:
      Inoperative Turn Lamp Connector-Pin SJB Connector-Pin Circuit
      LH front C1023-3 C2280b-14 3 (LG/WH)
      RH front C1043-3 C2280b-23 2 (WH/LB)
      LH side C1123-1 C2280b-14 3 (LG/WH)
      RH side C1122-1 C2280b-23 2 (WH/LB)
      LH rear C413-3 C2280c-6 3 (LG/WH)
      RH rear C416-3 C2280c-9 2 (WH/LB)
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  O5.
    2. NO  : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
  4. O4 CHECK THE TURN LAMP CIRCUITRY FOR A SHORT TO GROUND 
    • Disconnect: Inoperative Lamp
    • Disconnect: SJB C2280b (Front or Side Turn Lamp)
    • Disconnect: SJB C2280c (Rear Turn Lamp)
    • Measure the resistance between the inoperative turn lamp connector, harness side and ground as follows.
      Inoperative Turn Lamp Connector-Pin Circuit
      LH front C1023-3 3 (LG/WH)
      RH front C1043-3 2 (WH/LB)
      LH side C1123-1 3 (LG/WH)
      RH side C1122-1 2 (WH/LB)
      LH rear C413-3 3 (LG/WH)
      RH rear C416-3 2 (WH/LB)
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  O5.
    2. NO  : REPAIR the circuit in question. RUN the on-demand self-test (required to clear certain DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
  5. O5 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. CLEAR the DTCs. REPEAT the self-test.
scientia non olet · About LEMON Manuals