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Pinpoint Test A: The Power Seat Is Inoperative - Driver

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.
WARNING: Remove restraint system diagnostic tools from the vehicle prior to road testing. If tools are not removed, the supplemental restraint system (SRS) device may not deploy in a crash. Failure to follow this instruction may result in serious personal injury or death in a crash and possibly violate vehicle safety standards.
CAUTION: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: The air bag warning indicator illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  1. A1 CHECK VOLTAGE TO SEAT CONTROL SWITCH CIRCUIT 566 (DG) 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Driver Seat Side Air Bag C367
    • Connect restraint system diagnostic tool 418-133 to driver seat side air bag C367.
    • Disconnect: Driver Seat Control Switch C360
      • WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any air bag module when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
    • Connect the battery ground cable. Refer to BATTERY, MOUNTING AND CABLES .
      • Fig 1: Checking Voltage To Seat Control Switch Circuit 566 (DG)
      GF0014753Courtesy of FORD MOTOR CO.
    • Measure the voltage between driver seat control switch C360-4, circuit 566 (DG), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : VERIFY bussed electrical center (BEC) fuse 14 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C367. CONNECT driver seat side air bag module C367. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  2. A2 CHECK SEAT CONTROL SWITCH CIRCUIT 1205 (BK) FOR AN OPEN 
      Fig 2: Checking Seat Control Switch Circuit 1205 (BK) For Open
      GF0014754Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver seat control switch C360-2, circuit 1205 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new seat control switch. REFER to Seat Control Switch . TEST the system for normal operation.

      DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C367. CONNECT driver seat side air bag module C367. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    2. NO  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C367. CONNECT driver seat side air bag module C367. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

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