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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1502 (Seat System - Seats) >> Diagnosis And Testing >> Seats >> Pinpoint Tests >> Pinpoint Test A: The Power Seat is Inoperative >> Pinpoint Test A: The Power Seat Is Inoperative

Pinpoint Test A: The Power Seat Is Inoperative

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. A1 CHECK THE DRIVER SEAT CONTROL SWITCH FOR VOLTAGE 
    • Ignition OFF.
    • Depower the SRS  . Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Seat Side Air Bag C367.
    • Disconnect: Driver Safety Belt Buckle Pretensioner C3201.
    • Disconnect: Seat Control Switch C352.
      • 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 DISCONNECT .
    • Measure the voltage between seat control switch C352-4, circuit SBB19 (BU/RD), harness side and ground.
      Fig 1: Measuring Voltage Between Seat Control Switch C352-4, Circuit SBB19 (BU/RD) Harness Side And Ground
      G06099615Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to A2  .
    • No:  VERIFY Battery Junction Box (BJB) fuse 19 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short.

      DISCONNECT the battery ground cable. CONNECT driver seat safety belt buckle pretensioner C3201 and driver seat side air bag C367.

      REPOWER the SRS  . REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .

  2. A2 CHECK THE SEAT CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Measure the resistance between seat control switch C352-2, circuit GD182 (BK/GY), harness side and ground.
      Fig 2: Measuring Resistance Between Seat Control Switch C352-2, Circuit GD182 (BK/GY) Harness Side And Ground
      G06099616Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
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