Pinpoint Test
- CHECK THE Powertrain Control Module (PCM) Transmission Range (TR) Parameter Identification (PID) STATES
- Ignition ON.
- Using a scan tool, view Powertrain Control Module (PCM) Parameter Identification (PID) TR.
- Operate the transmission gear selector in all positions while monitoring the Powertrain Control Module (PCM) Parameter Identification (PID) TR states.
- Do the Parameter Identification (PID) states agree with the selected positions?
- Yes: GO to 2 on page 4.
- No: To diagnose a transmission gear selector (PRNDL) status concern, REFER to AUTOMATIC TRANSMISSION - 6F50 AND 6F55 .
- CHECK THE Driver Seat Module (DSM) IGNITION SWITCH STATUS (IGN_SW) Parameter Identification (PID) STATES
- Using a scan tool, view Driver Seat Module (DSM) Parameter Identifications (PIDs).
- Cycle the ignition switch in all positions while monitoring the Driver Seat Module (DSM) Parameter Identification (PID) IGN_SW states.
- Do the Parameter Identification (PID) states agree with the selected positions?
- Yes: GO to 3 on page 4.
- No: For vehicles equipped with an ignition lock cylinder and key, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . For vehicles equipped with passive entry/passive start, REFER to STEERING COLUMN SWITCHES .
- RETRIEVE Driver Seat Module (DSM) Diagnostic Trouble Codes (DTCs)
- Operate the memory seat and memory mirrors in all directions through the full range of travel.
- Place the memory seat and memory mirrors in central travel positions.
- Using a scan tool, perform Driver Seat Module (DSM) self-test.
- Are any Driver Seat Module (DSM) Diagnostic Trouble Codes (DTCs) retrieved?
- Yes:
If Diagnostic Trouble Codes (DTCs) B1952, B1956, B1960 and B1964 are all retrieved, GO to 10
on page 9.
If Diagnostic Trouble Codes (DTCs) B1953, B1957, B1961 and B1965 are all retrieved, GO to 10 on page 9.
If only Diagnostic Trouble Code (DTC) B1534, B1538 or B153A are retrieved, GO to 5 on page 5.
If only Diagnostic Trouble Code (DTC) B1663, B1956 or B1957 are retrieved, GO to 11 on page 10.
If only Diagnostic Trouble Code (DTC) B1664, B1952 or B1953 are retrieved, GO to 14 on page 12.
If only Diagnostic Trouble Code (DTC) B1665, B1964 or B1965 are retrieved, GO to 17 on page 15.
If only Diagnostic Trouble Code (DTC) B1666, B1960 or B1961 are retrieved, GO to 20 on page 18.
For any other Driver Seat Module (DSM) Diagnostic Trouble Codes (DTCs), REFER to DTC CHART: DRIVER SEAT MODULE (DSM) .
- No: GO to 4 on page 5.
- MONITOR THE Driver Seat Module (DSM) Parameter Identifications (PIDs) AND CHECK THE Driver Seat Module (DSM) FOR CORRECT MEMORY SET SWITCH INPUTS
- Using a scan tool, view Driver Seat Module (DSM) Parameter Identifications (PIDs).
- Memory 1 recall switch status (MEM_1)
- Memory 2 recall switch status (MEM_2)
- Memory 2 recall switch status (MEM_3)
- Monitor the Driver Seat Module (DSM) Parameter Identifications (PIDs) while activating the memory set switch, recall 1, recall 2 and recall 3 buttons.
- Do the Parameter Identification (PID) states agree with the switch button positions?
- Yes: GO to 10 on page 9.
- No: GO to 5 on page 5.
- Using a scan tool, view Driver Seat Module (DSM) Parameter Identifications (PIDs).
- CHECK THE MEMORY SET SWITCH
- Ignition OFF.
- Disconnect: Door Lock Control Switch C541.
- While pressing and releasing the indicated switch buttons, measure:
Courtesy of FORD MOTOR CO.
- Are the resistances less than 20 ohms when the memory recall switch is pressed; and greater than 10,000 ohms when released?
- Yes: GO to 6 on page 6.
- No: INSTALL a new memory set switch. REFER to MEMORY SET SWITCH . CLEAR the Diagnostic Trouble Codes (DTCs).
- CHECK THE MEMORY SET SWITCH GROUND FOR AN OPEN
- Measure:
Courtesy of FORD MOTOR CO.
- Is the resistance less than 3 ohms?
- Yes: GO to 7 on page 6.
- No: REPAIR the circuit. CLEAR the Diagnostic Trouble Codes (DTCs).
- Measure:
- CHECK THE MEMORY SET SWITCH CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Disconnect: Driver Seat Module (DSM) C341C.
- Ignition ON.
- Measure:
Courtesy of FORD MOTOR CO.
- Is any voltage present on any circuits?
- Yes: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: GO to 8 on page 7.
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 MEMORY SET SWITCH CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 9 on page 8.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- CHECK THE MEMORY SET SWITCH CIRCUITS FOR AN OPEN
- Measure:Fig 5: Measuring Door Lock Control Switch Connector And Driver Seat Module Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: GO to 23 on page 21.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- Measure:
- MONITOR THE Driver Seat Module (DSM) Parameter Identifications (PIDs)
- Using a scan tool, view Driver Seat Module (DSM) Parameter Identifications (PIDs).
- Driver Power Seat Front Up/Down Sense (SFNT_MT)
- Driver Power Seat Forward/Backward Sense (SFWD_MT)
- Driver Power Seat Recline Sense (SRCL_MT)
- Driver Power Seat Rear Up/Down Sense (SREARMT)
- Operate the memory seat in all directions through the full range of travel while monitoring the Parameter Identifications (PIDs).
- Does each Parameter Identification (PID) indicate the sensor is operational throughout each associated motor's full range of travel?
- Yes: GO to 23 on page 21.
- No:
If front up/down position sensor Parameter Identification (PID) value indicates not present, GO to 11
on page 10.
If rear up/down position sensor Parameter Identification (PID) value indicates not present, GO to 14 on page 12.
If forward/rearward position sensor Parameter Identification (PID) value indicates not present, GO to 17 on page 15.
If recline position sensor Parameter Identification (PID) value indicates not present, GO to 20 on page 18.
- Using a scan tool, view Driver Seat Module (DSM) Parameter Identifications (PIDs).
- CHECK THE FRONT HEIGHT POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Disconnect: Driver Seat Module (DSM) C341B.
- Disconnect: Driver Seat Front Height Motor C382.
- Ignition ON.
- Measure:
Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: GO to 12 on page 11.
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 FRONT HEIGHT POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 13 on page 11.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- CHECK FRONT HEIGHT POSITION SENSOR CIRCUITS FOR AN OPEN
- Measure:Fig 8: Measuring Driver Seat Front Height Motor Connector And Driver Seat Module Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- Measure:
- CHECK THE REAR HEIGHT POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Disconnect: Driver Seat Module (DSM) C341B.
- Disconnect: Driver Seat Rear Height Motor C363.
- Ignition ON.
- Measure:
Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: GO to 15 on page 13.
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 REAR HEIGHT POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 16 on page 14.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- CHECK THE REAR HEIGHT POSITION SENSOR CIRCUITS FOR AN OPEN
- Measure:Fig 11: Measuring Driver Seat Rear Height Motor Connector And Driver Seat Module Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- Measure:
- CHECK THE HORIZONTAL POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Disconnect: Driver Seat Module (DSM) C341B.
- Disconnect: Driver Seat Horizontal Motor C362.
- Ignition ON.
- Measure:
Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: GO to 18 on page 16.
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 HORIZONTAL POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 19 on page 17.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- CHECK THE HORIZONTAL POSITION SENSOR CIRCUITS FOR AN OPEN
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: INSTALL a new seat track assembly. REFER to SEAT TRACK . CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- Measure:
- CHECK THE RECLINER POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Driver Seat Side Air Bag C3051.
- Disconnect: Driver Seat Module (DSM) C341B.
- Disconnect: Driver Seat Recliner Motor C3187.
- Ignition ON.
- Measure:
Courtesy of FORD MOTOR CO.
- Is any voltage present on either circuit?
- Yes: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: GO to 21 on page 19.
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 POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to 22 on page 20.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- CHECK THE RECLINER POSITION SENSOR CIRCUITS FOR AN OPEN
- Measure:Fig 17: Measuring Driver Seat Recliner Motor Connector And Driver Seat Module Connector Terminal Identification
Courtesy of FORD MOTOR CO.
- Are the resistances less than 3 ohms?
- Yes: INSTALL a new seat recliner motor. REFER to SEAT RECLINER MOTOR . CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- No: REPAIR the affected circuit. CLEAR the Diagnostic Trouble Codes (DTCs). GO to 24 on page 22.
- Measure:
- CHECK FOR CORRECT Driver Seat Module (DSM) OPERATION
- Ignition OFF.
- Disconnect and inspect all Driver Seat Module (DSM) connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins as necessary
- pushed-out pins - install new pins as necessary
- Reconnect the Driver Seat Module (DSM) connectors and all previously disconnected rear window defrost system connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new Driver Seat Module (DSM). REFER to DRIVER SEAT MODULE (DSM) . GO to 24 on page 22.
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. GO to 24 on page 22.
- 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.