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Pinpoint Test

  1. CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION
      WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
    1. Ignition OFF.
    2. Disconnect: Passenger Seat Side Air Bag C339.
    3. Operate the passenger seat forward and rearward.
      • Does the seat move horizontally? 
      1. Yes:  GO to 5  on page 4.
      2. No:  GO to 2  on page 2.
  2. CHECK FOR VOLTAGE TO THE PASSENGER SEAT HORIZONTAL MOTOR
    1. Disconnect: Passenger Seat Horizontal Motor C332.
      2. NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.
      Fig 1: Measuring Passenger Seat Horizontal Motor Connector Terminal Identification
      G07427478Courtesy of FORD MOTOR CO.
    2. While pushing the passenger seat control switch forward and rearward, measure:
      • Is the voltage greater than 11 volts when the seat control switch is operated and 0 volt in the rest position? 
      1. Yes:  INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 12  on page 8.
      2. No:  GO to 3  on page 3.
  3. CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN
    1. Disconnect: Passenger Seat Control Switch C3190.
    2. Measure:
      Fig 2: Measuring Passenger Seat Control Switch Connector And Passenger Seat Horizontal Motor Connector Terminal Identification
      G07427479Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  GO to 4  on page 3.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  4. CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN
    1. Measure:
      Fig 3: Measuring Passenger Seat Control Switch Connector And Passenger Seat Horizontal Motor Connector Terminal Identification
      G07427480Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 12  on page 8.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  5. DETERMINE THE SEAT HEIGHT ADJUST FAILURE
    1. Operate the seat front and rear height adjustments.
      • Does the seat front and rear height adjust up and down? 
      1. Yes:  If only the front height adjust motor operates, GO to 6  on page 4.

        If only the rear height adjust motor operates, GO to 9  on page 6.

      2. No:  INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 12  on page 8.
  6. CHECK FOR VOLTAGE TO THE PASSENGER SEAT REAR HEIGHT MOTOR
    1. Disconnect: Passenger Seat Rear Height Motor C3075.
      2. NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.
      Fig 4: Measuring Passenger Seat Rear Height Motor Connector Terminal Identification
      G07427481Courtesy of FORD MOTOR CO.
    2. While pressing the rear height adjust switch up and down, measure:
      • Is the voltage greater than 11 volts when the seat control switch is operated and 0 volt in the rest position? 
      1. Yes:  INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 12  on page 8.
      2. No:  GO to 7  on page 5.
  7. CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN
    1. Disconnect: Passenger Seat Control Switch C3190.
    2. Measure:
      Fig 5: Measuring Passenger Seat Control Switch Connector And Passenger Seat Rear Height Motor Connector Terminal Identification
      G07427482Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  GO to 8  on page 6.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  8. CHECK THE REAR HEIGHT MOTOR CIRCUIT FOR AN OPEN
    1. Measure:
      Fig 6: Measuring Passenger Seat Control Switch Connector And Passenger Seat Rear Height Motor Connector Terminal Identification
      G07427483Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 12  on page 8.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  9. CHECK FOR VOLTAGE TO THE PASSENGER SEAT FRONT HEIGHT MOTOR
    1. Disconnect: Passenger Seat Front Height Motor C3074.
      2. NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.
      Fig 7: Measuring Passenger Seat Front Height Motor Connector Terminal Identification
      G07427484Courtesy of FORD MOTOR CO.
    2. While pressing the front height adjust switch up and down, measure:
      • Is the voltage greater than 11 volts when the seat control switch is operated and 0 volt in the rest position? 
      1. Yes:  INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 12  on page 8.
      2. No:  GO to 10  on page 7.
  10. CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN
    1. Disconnect: Passenger Seat Control Switch C3190.
    2. Measure:
      Fig 8: Measuring Passenger Seat Control Switch Connector And Passenger Seat Front Height Motor Connector Terminal Identification
      G07427485Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  GO to 11  on page 8.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  11. CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN
    1. Measure:
      Fig 9: Measuring Passenger Seat Control Switch Connector And Passenger Seat Front Height Motor Connector Terminal Identification
      G07427486Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 12  on page 8.
      2. No:  REPAIR the circuit. GO to 12  on page 8.
  12. CHECK FOR Supplemental Restraint System (SRS) Diagnostic Trouble Codes (DTCs)
      WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
    1. Ignition OFF.
    2. Connect: Passenger Seat Side Air Bag C339.
    3. Connect: All previously disconnected electrical connectors.
    4. Ignition ON.
    5. Using a scan tool, clear the Restraints Control Module (RCM) Diagnostic Trouble Codes (DTCs).
    6. Cycle the ignition OFF then ON.
    7. Using a scan tool, perform Restraints Control Module (RCM) self-test.
      • Are any Restraints Control Module (RCM) Diagnostic Trouble Codes (DTCs) retrieved during self-test? 
      1. Yes:  REFER to DTC CHART: RESTRAINT CONTROL MODULE (RCM) for pinpoint test direction.
      2. No:  The repair is complete. RETURN the vehicle to the customer.
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