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Pinpoint Test D: The Power Seat Is Inoperative - Passenger, Without Power Recliner

WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. 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 switch is ON.
NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. D1 CHECK VOLTAGE TO THE PASSENGER SEAT HORIZONTAL MOTOR 
    • 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 article.
    • Disconnect: Passenger Seat Side Air Bag C3227
    • Disconnect: Passenger Safety Belt Buckle Pretensioner C3066
    • Disconnect: Passenger Seat Horizontal Motor C332
      • 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 article.
    • Measure the voltage between passenger seat horizontal motor C332-2, circuit CPS33 (WH), harness side and C332-1, circuit CPS38 (GN/BU), harness side, while operating the passenger seat control switch forward and rearward.
      • Fig 1: Measuring Voltage
      GF0016328Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts with the switch forward, greater than -10 volts with the switch rearward and 0 volts with the switch at rest position? 
    1. YES  : INSTALL a new passenger seat horizontal motor. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    2. NO  : Go to  D2.
  2. D2 CHECK FOR VOLTAGE TO THE PASSENGER SEAT CONTROL SWITCH 
    • Disconnect: Passenger Seat Control Switch C3190
    • Measure the voltage between passenger seat control switch C3190-4, circuit SBB21 (GY/RD), harness side and ground.
      • Fig 2: Measuring Voltage
      GF0016329Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  D3.
    2. NO  : VERIFY battery junction box (BJB) fuse 21 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  3. D3 CHECK CIRCUIT GD148 (BK/YE) FOR AN OPEN 
    • Measure the resistance between passenger seat control switch C3190-2, circuit GD148 (BK/YE), harness side and ground.
      • Fig 3: Measuring Resistance
      GF0016330Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  D4.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  4. D4 CHECK CIRCUIT CPS33 (WH) FOR AN OPEN AND SHORT TO GROUND 
    • Measure the resistance between passenger seat control switch C3190-3, circuit CPS33 (WH), harness side and passenger seat horizontal motor C332-2, circuit CPS33 (WH), harness side; and between passenger seat control switch C3190-3, circuit CPS33 (WH), harness side and ground.
      • Fig 4: Measuring Resistance
      GF0016331Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the passenger seat horizontal motor and the passenger seat control switch, and greater than 10,000 ohms between the passenger seat control switch and ground? 
    1. YES  : Go to  D5.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  5. D5 CHECK CIRCUIT CPS38 (GN/BU) FOR AN OPEN AND SHORT TO GROUND 
    • Measure the resistance between passenger seat control switch C3190-6, circuit CPS38 (GN/BU), harness side and passenger seat horizontal motor C332-1, circuit CPS38 (GN/BU), harness side; and between passenger seat control switch C3190-6, circuit CPS38 (GN/BU), harness side and ground.
      • Fig 5: Measurig Resistance
      GF0016332Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the passenger seat horizontal motor and the passenger seat control switch, and greater than 10,000 ohms between the passenger seat control switch and ground? 
    1. YES  : INSTALL a new passenger seat control switch. REFER to Seat Control Switch - Front . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

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

      DISCONNECT the battery ground cable.

      CONNECT passenger seat side air bag module C3227.

      CONNECT passenger seat safety belt buckle pretensioner C3066.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

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