Pinpoint Test
- CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Operate the driver seat forward and rearward.
- Does the seat move horizontally?
- Yes: GO to 2 on page 2.
- No: GO to 3 on page 2.
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. - CHECK THE RECLINER MOTOR FOR CORRECT OPERATION
- Recline the driver backrest forward and rearward.
- Does the seat backrest recline forward and rearward?
- Yes: GO to 6 on page 4.
- No: GO to 13 on page 8.
- Recline the driver backrest forward and rearward.
- CHECK FOR VOLTAGE TO THE DRIVER SEAT HORIZONTAL MOTOR
- Disconnect: Driver Seat Horizontal Motor C362.
- While pushing the driver 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?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 16 on page 10.
- No: GO to 4 on page 3.
NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.Courtesy of FORD MOTOR CO.
- CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN
- Disconnect: Driver Seat Control Switch C369.
- Measure:Fig 2: Measuring Driver Seat Control Switch Connector And Driver Seat Horizontal Motor Connector Terminal Identifications
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: GO to 5 on page 3.
- No: REPAIR the circuit. GO to 16 on page 10.
- CHECK THE HORIZONTAL MOTOR CIRCUIT FOR AN OPEN
- Measure:Fig 3: Measuring Driver Seat Control Switch Connector And Driver Seat Horizontal Motor Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 16 on page 10.
- No: REPAIR the circuit. GO to 16 on page 10.
- Measure:
- DETERMINE THE SEAT HEIGHT ADJUST FAILURE
- Operate the seat front and rear height adjustments.
- Does the seat front and rear height adjust up and down?
- Yes:
If only the front height adjust motor operates, GO to 7
on page 4.
If only the rear height adjust motor operates, GO to 10 on page 6.
- No: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 16 on page 10.
- Operate the seat front and rear height adjustments.
- CHECK VOLTAGE TO THE REAR HEIGHT MOTOR
- Disconnect: Driver Seat Rear Height Motor C363.
- 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?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 16 on page 10.
- No: GO to 8 on page 5.
NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.Courtesy of FORD MOTOR CO.
- CHECK THE REAR SEAT HEIGHT MOTOR CIRCUIT FOR AN OPEN
- CHECK THE REAR SEAT HEIGHT MOTOR CIRCUIT FOR AN OPEN
- Measure:Fig 6: Measuring Driver Seat Control Switch And Driver Seat Rear Height Motor Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 16 on page 10.
- No: REPAIR the circuit. GO to 16 on page 10.
- Measure:
- CHECK FOR VOLTAGE TO THE DRIVER SEAT FRONT HEIGHT MOTOR
- Disconnect: Driver Seat Front Height Motor C382.
- 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?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . GO to 16 on page 10.
- No: GO to 11 on page 7.
NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.Courtesy of FORD MOTOR CO.
- CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN
- CHECK THE FRONT HEIGHT MOTOR CIRCUIT FOR AN OPEN
- Measure:Fig 9: Measuring Driver Seat Control Switch And Driver Seat Front Height Motor Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 16 on page 10.
- No: REPAIR the circuit. GO to 16 on page 10.
- Measure:
- CHECK FOR VOLTAGE TO THE DRIVER SEAT RECLINER MOTOR
- Disconnect: Driver Seat Recliner Motor C3187.
- While pushing the recline switch forward and rearward, measure:
- Is the voltage greater than 11 volts when the seat control switch is operated in both directions and 0 volt in the rest position?
- Yes: INSTALL a new seat recliner motor. REFER to SEAT RECLINER MOTOR . GO to 16 on page 10.
- No: GO to 14 on page 9.
NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.Courtesy of FORD MOTOR CO.
- CHECK THE RECLINER MOTOR CIRCUIT FOR AN OPEN
- CHECK THE RECLINER MOTOR CIRCUIT FOR AN OPEN
- Measure:Fig 12: Measuring Driver Seat Control Switch And Driver Seat Recliner Motor Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 16 on page 10.
- No: REPAIR the circuit. GO to 16 on page 10.
- Measure:
- CHECK FOR Supplemental Restraint System (SRS) Diagnostic Trouble Codes (DTCs)
- Ignition OFF.
- Connect: Driver Seat Side Air Bag C3051.
- Connect: All previously disconnected electrical connectors.
- Ignition ON.
- Using a scan tool, clear the Restraints Control Module (RCM) Diagnostic Trouble Codes (DTCs).
- Cycle the ignition OFF then ON.
- 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?
- Yes: REFER to DTC CHART: RESTRAINT CONTROL MODULE (RCM) for pinpoint test direction.
- No: The repair is complete. RETURN the vehicle to the customer.
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.