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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1227 (Handles, Locks, Latches & Entry Systems) >> Diagnostic Tests >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test C: The Door Locks Operate Only One Way >> Pinpoint Test C: The Door Locks Operate Only One Way

Pinpoint Test C: The Door Locks Operate Only One Way

WARNING: This page is about a different car, the 2009 Ford Mustang. 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. C1 RETRIEVE THE RECORDED DTCs FROM THE SJB SELF-TEST 
    • Check for recorded SJB DTCs from the self-test.
    • Are any DTCs recorded? 
    1. YES  : For DTC B1309, B1341, B2474, or B2475, go to Pinpoint Test E .

      For all other DTCs, REFER to DTC Charts .

    2. NO  : Go to  C2.
  2. C2 CHECK THE DOOR LOCK CONTROL SWITCH 
    • Disconnect: Suspect Door Lock Control Switch
    • Carry out the driver or passenger door lock control switch component test. Refer to COMPONENT TESTING.
    • Is the door lock control switch OK? 
    1. YES  : Go to  C3.
    2. NO  : INSTALL a new door lock control switch. REFER to Door Lock Control Switch . TEST the system for normal operation.
  3. C3 CHECK THE DOOR LOCK CONTROL SWITCH CIRCUITS FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280e
    • Measure the resistance between the inoperative door lock control switch, harness side and the SJB, harness side as follows:
      Door Control Switch Connector-Pin SJB Connector-Pin Circuit
      LH C505-2 C2280e-1 1317 (DB/LG)
      LH C505-4 C2280e-3 1316 (WH/VT)
      RH C605-2 C2280e-5 1297 (YE/RD)
      RH C605-4 C2280e-8 1296 (OG/BK)
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  C4.
    2. NO  : REPAIR the circuit in question. TEST the system for normal operation.
  4. C4 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.
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