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Home >> Lincoln >> 2011 >> MKS EcoBoost >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seat System - Seats >> Diagnosis And Testing >> Seats >> Pinpoint Tests >> Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically/Recline - Passenger >> Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically/Recline - Passenger

Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically/Recline - Passenger

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. E1 CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION 
    • Operate the power seat forward and backward.
    • Will the seat move horizontally? 
    • Yes  : GO to E2.
    • No  : GO to  E3.
  2. E2 CHECK THE RECLINER MOTOR FOR CORRECT OPERATION 
    • Recline the backrest forward and backward.
    • Will the backrest pivot forward and backward? 
    • Yes  : GO to  E6.
    • No  : GO to  E13.
  3. E3 CHECK THE VOLTAGE TO THE HORIZONTAL MOTOR 
    • Ignition OFF.
    • 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 Safety Belt Buckle Pretensioner C3066.
    • Disconnect: Passenger Seat Side Air Bag C3133.
    • Disconnect: 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, BATTERY MOUNTING & BATTERY CABLES article.
    • Measure the voltage between horizontal motor C332-1, circuit CPS38 (GN/BU), harness side and C332-2, circuit CPS33 (WH), harness side, while depressing the seat control switch forward and backward.
      Fig 1: Measuring Voltage Between Horizontal Motor C332-1, Circuit CPS38 (GN/BU) And C332-2, Circuit CPS33 (WH)
      G07819483Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts when the seat control switch is operated in both directions and 0 volt in the rest position? 
    • Yes  : INSTALL a new passenger seat track assembly.

      REFER to SEAT TRACK  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : GO to E4.
  4. E4 CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN 
    • Disconnect: Seat Control Switch C3190a.
    • Measure the resistance between seat control switch C3190a-4, circuit CPS38 (GN/BU), harness side and horizontal motor C332-1, circuit CPS38 (GN/BU), harness side.
      Fig 2: Measuring Resistance Between Seat Control Switch C3190a-4, Circuit CPS38 (GN/BU) And Horizontal Motor C332-1, Circuit CPS38 (GN/BU)
      G07819484Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to E5.
    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  5. E5 CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN 
    • Measure the resistance between seat control switch C3190a-2, circuit CPS33 (WH), harness side and horizontal motor C332-2, circuit CPS33 (WH), harness side.
      Fig 3: Measuring Resistance Between Seat Control Switch C3190a-2, Circuit CPS33 (WH) And Horizontal Motor C332-2, Circuit CPS33 (WH)
      G07819485Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new passenger seat control switch. REFER to SEAT CONTROL SWITCH  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  6. E6 DETERMINE THE SEAT HEIGHT ADJUST FAILURE 
    • Operate the front and rear seat height adjustments.
    • Does the seat front and rear height adjust up and down? 
    • Yes  : If only front height adjust operates, GO to E7.

      If only rear height adjust operates, GO to  E10.

    • No  : INSTALL a new passenger seat control switch. REFER to SEAT CONTROL SWITCH  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  7. E7 CHECK THE VOLTAGE TO THE REAR HEIGHT MOTOR 
    • Ignition OFF.
    • 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 Safety Belt Buckle Pretensioner C3066.
    • Disconnect: Passenger Seat Side Air Bag C3133.
    • Disconnect: Rear Height Motor C3075.
      • 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, BATTERY MOUNTING & BATTERY CABLES article.
    • Measure the voltage between rear height motor C3075-1, circuit CPS37 (WH/BU), harness side and C3075-5, circuit CPS36 (YE/GY), harness side, while depressing the seat control switch rear height adjust up and down.
      Fig 4: Measuring Voltage Between Rear Height Motor C3075-1, Circuit CPS37 (WH/BU) And C3075-5, Circuit CPS36 (YE/GY)
      G07819486Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts when the seat control switch is operated in both directions and 0 volt in the rest position? 
    • Yes  : INSTALL a new passenger seat track assembly.

      REFER to SEAT TRACK  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : GO to E8.
  8. E8 CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN 
    • Disconnect: Seat Control Switch C3190a.
    • Measure the resistance between seat control switch C3190a-3, circuit CPS37 (WH/BU), harness side and rear height motor C3075-1, circuit CPS37 (WH/BU), harness side.
      Fig 5: Measuring Resistance Between Seat Control Switch C3190a-3, Circuit CPS37 (WH/BU) And Rear Height Motor C3075-1, Circuit CPS37 (WH/BU)
      G07819487Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to E9.
    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  9. E9 CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN 
    • Measure the resistance between seat control switch C3190a-5, circuit CPS36 (YE/GY), harness side and rear height motor C3075-5, circuit CPS36 (YE/GY), harness side.
      Fig 6: Measuring Resistance Between Seat Control Switch C3190A-5, Circuit CPS36 (YE/GY) And Rear Height Motor C3075-5, Circuit CPS36 (YE/GY)
      G07819488Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new passenger seat control switch. REFER to SEAT CONTROL SWITCH  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  10. E10 CHECK THE VOLTAGE TO THE FRONT HEIGHT MOTOR 
    • Ignition OFF.
    • 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 Safety Belt Buckle Pretensioner C3066.
    • Disconnect: Passenger Seat Side Air Bag C3133.
    • Disconnect: Front Height Motor C3074.
      • 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, BATTERY MOUNTING & BATTERY CABLES article.
    • Measure the voltage between front height motor C3074-1, circuit CPS35 (VT/GN), harness side and C3074-2, circuit CPS34 (GY/BU), while depressing the seat control switch front height adjust up and down.
      Fig 7: Measuring Voltage Between Front Height Motor C3074-1, Circuit CPS35 (VT/GN) And C3074-2, Circuit CPS34 (GY/BU)
      G07819489Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts when the seat control switch is operated in both directions and 0 volt in the rest position? 
    • Yes  : INSTALL a new passenger seat track assembly.

      REFER to SEAT TRACK  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : GO to E11.
  11. E11 CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN 
    • Disconnect: Seat Control Switch C3190a.
    • Measure the resistance between seat control switch C3190a-11, circuit CPS35 (VT/GN), harness side and front height motor C3074-1, circuit CPS35 (VT/GN), harness side.
      Fig 8: Measuring Resistance Between Seat Control Switch C3190A-11, Circuit CPS35 (VT/GN) And Front Height Motor C3074-1, Circuit CPS35 (VT/GN)
      G07819490Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to E12.
    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  12. E12 CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN 
    • Measure the resistance between seat control switch C3190a-10, circuit CPS34 (GY/BU) harness side, and front height motor C3074-2, circuit CPS34 (GY/BU), harness side.
      Fig 9: Measuring Resistance Between Seat Control Switch C3190a-10, Circuit CPS34 (GY/BU) And Front Height Motor C3074-2, Circuit CPS34 (GY/BU)
      G07819491Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new passenger seat control switch. REFER to SEAT CONTROL SWITCH  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : REPAIR the circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  13. E13 CHECK THE VOLTAGE TO THE RECLINER MOTOR 
    • Ignition OFF.
    • 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 Safety Belt Buckle Pretensioner C3066.
    • Disconnect: Passenger Seat Side Air Bag C3133.
    • Disconnect: Recliner Motor C3189.
      • 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, BATTERY MOUNTING & BATTERY CABLES article.
    • Measure the voltage between recliner motor C3189-3, circuit CPS08 (VT/OG), harness side and C3189-1, circuit CPS07 (GY/BN), while depressing the seat control switch forward and backward.
      Fig 10: Measuring Voltage Between Recliner Motor C3189-3, Circuit CPS08 (VT/OG) And C3189-1, Circuit CPS07 (GY/BN)
      G07819492Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts when the seat control switch is operated in both directions and 0 volt in the rest position? 
    • Yes  : INSTALL a new passenger seat recliner motor. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : GO to E14.
  14. E14 CHECK THE RECLINER MOTOR CIRCUITS FOR AN OPEN 
    • Disconnect: Seat Control Switch C3190a.
    • Measure the resistance between seat control switch C3190a-9, circuit CPS39 (GY/YE), harness side and passenger seat recliner motor C3189-1, circuit CPS07 (GY/BN), harness side.
      Fig 11: Measuring Resistance Between Seat Control Switch C3190a-9, Circuit CPS39 (GY/YE) And Passenger Seat Recliner Motor C3189-1, Circuit CPS07 (GY/BN)
      G07819493Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to E15.
    • No  : REPAIR the affected circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133.

      REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

  15. E15 CHECK THE RECLINER MOTOR CIRCUITS FOR AN OPEN 
    • Measure the resistance between seat control switch C3190a-8, circuit CPS40 (VT/GY) harness side, and recliner motor C3189-3, circuit CPS08 (VT/OG), harness side.
      Fig 12: Measuring Resistance Between Seat Control Switch C3190a-8, Circuit CPS40 (VT/GY) And Recliner Motor C3189-3, Circuit CPS08 (VT/OG)
      G07819494Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new passenger seat control switch. REFER to SEAT CONTROL SWITCH  . TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

    • No  : REPAIR the affected circuit. TEST the system for normal operation.

      DISCONNECT the battery ground cable.

      CONNECT passenger safety belt buckle pretensioner C3066.

      CONNECT passenger seat side air bag module C3133. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article.

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