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Pinpoint Test H: The Memory Seat Does Not Operate Using The Memory Set Switch -- RHD (Right-Hand Drive)

  1. Refer to MEMORY SEATS for schematic and connector information.

    Normal Operation and Fault Conditions 

    REFER to: Front Seats - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    DDM B1C03:23 Memory #1 Switch: Signal Stuck Low If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity is sensed on the input circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored.
    DDM B1C04:23 Memory #2 Switch: Signal Stuck Low If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity is sensed on the input circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored.
    DDM B1C05:23 Memory #3 Switch: Signal Stuck Low If a short to ground is sensed on the switch input circuit during the DDM self-test, the DTC is set. If activity is sensed on the input circuit for greater than 2 minutes, the DTC is set as continuous. With the DTC set, any input signal on the circuit is ignored.
    DSM B1B89:11 Seat Slide Motor Speed/Position Sensor: Circuit Short To Ground If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.
    DSM B1B89:15 Seat Slide Motor Speed/Position Sensor: Circuit Short To Battery Or Open If an open or short to voltage condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.
    DSM B1B91:11 Seat Tilt Motor Speed/Position Sensor: Circuit Short To Ground If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.
    DSM B1B91:15 Seat Tilt Motor Speed/Position Sensor: Circuit Short To Battery Or Open If an open or short to voltage condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.
    DSM B1B93:11 Seat Recline Motor Speed/Position Sensor: Circuit Short To Ground If a short to ground condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.
    DSM B1B93:15 Seat Recline Motor Speed/Position Sensor: Circuit Short To Battery Or Open If an open or short to voltage condition is present on the affected motor's position sensor (Hall-effect) feedback circuit, the DTC is set. After a DTC is set, a memory recall is not possible but the seat control switch can operate the associated motor in two-second increments.

    Possible Sources 

    • Memory seat hard/soft stops not set correctly
    • Wiring, terminals or connectors
    • Memory SET control switch
    • Missing ignition status information
    • Backrest frame
    • Seat track motor
    • Seat track
    • DDM
    • DSM

    WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.

  2. H1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) IGNITION POSITION STATUS PID (PARAMETER IDENTIFICATION) STATES

    • Ignition ON.

    Access the DSM and monitor the IGN_SW_STATEPID

    • Using a diagnostic scan tool, monitor the PID while cycling the ignition from ON to OFF and back to ON.

    Do the PID states agree? 

    Yes  GO to H2 
    No  To diagnose no power in run, REFER to: Steering Wheel and Column Electrical Components .

  3. H2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)

    • Attempt to operate the memory seat in all directions.

    • Place the memory seat in the middle of each range of travel.

    Are any Diagnostic Trouble Codes (DTCs) present? 

    Yes  For DTC B1C03:23, B1C04:23 or B1C05:23, GO to H4 For DTC B1B91:11 or B1B91:15, GO to H10 For DTC B1B89:11 or B1B89:15, GO to H13 For DTC B1B93:11 or B1B93:15, GO to H16 
    For all other Diagnostic Trouble Codes (DTCs), REFER to Diagnostic Trouble Code (DTC) Chart 
    No  GO to H3 

  4. H3 MONITOR DSM (DRIVER FRONT SEAT MODULE) PARAMETER IDENTIFICATIONS (PIDS) AND CHECK FOR CORRECT MEMORY SET SWITCH INPUTS

    While activating the memory recall 1, 2 and 3 buttons, monitor the following DDM memory recall switch status Parameter Identifications (PIDs) using a diagnostic scan tool:

    • Access the DDM and monitor the MEMORY_SW_1PID

    • Access the DDM and monitor the MEMORY_SW_2PID

    • Access the DDM and monitor the MEMORY_SW_3PID

    Do the PID values agree with the switch button positions? 

    Yes  GO to H9 
    No  GO to H4 

  5. H4 CHECK THE MEMORY SET SWITCH

    • Ignition OFF.

    • Disconnect: Driver Door Lock Control Switch C541.

    • While pressing and releasing the indicated memory recall button 1, measure the component side resistance  of the driver door lock control switch using the following table:
      Positive Lead Measurement / Action Negative Lead
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 5, Component Side
      GFD769081Courtesy of FORD MOTOR COMPANY
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 3, Component Side

    • While pressing and releasing the indicated memory recall button 2, measure the component side resistance  of the driver door lock control switch using the following table:
      Positive Lead Measurement / Action Negative Lead
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 6, Component Side
      GFD769081Courtesy of FORD MOTOR COMPANY
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 3, Component Side

    • While pressing and releasing the indicated memory recall button 3, measure the component side resistance  of the driver door lock control switch using the following table:
      Positive Lead Measurement / Action Negative Lead
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 7, Component Side
      GFD769081Courtesy of FORD MOTOR COMPANY
      GFD769082Courtesy of FORD MOTOR COMPANY

      C541, pin 3, Component Side

    Are the resistances less than 20 ohms with the switch buttons pressed and greater than 10, 000 ohms with the switch buttons released? 

    Yes  GO to H5 
    No  INSTALL a new door lock control switch. REFER to: Front Door Lock Control Switch .

  6. H5 CHECK THE MEMORY SET SWITCH GROUND CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect: DDM C501A.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C541 Pin 3
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C501A Pin 14

    Is the resistance less than 3 ohms? 

    Yes  GO to H6 
    No  REPAIR the circuit.

  7. H6 CHECK THE MEMORY SET CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C541 Pin 5
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground
      C541 Pin 6
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground
      C541 Pin 7
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the affected circuit.
    No  GO to H7 

  8. H7 CHECK THE MEMORY SET SWITCH CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C541 Pin 5
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground
      C541 Pin 6
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground
      C541 Pin 7
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to H8 
    No  REPAIR the affected circuit.

  9. H8 CHECK THE MEMORY SET SWITCH CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C541 Pin 5
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C501A Pin 17
      C541 Pin 6
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C501A Pin 16
      C541 Pin 7
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C501A Pin 15

    Are the resistances less than 3 ohms? 

    Yes  GO to H19 
    No  REPAIR the affected circuit.

  10. H9 VERIFY THE SEAT OPERATION

    • Using the seat control switch, attempt to operate the seat in the following directions:

      • Height up and down

      • Horizontal forward and backward

      • Recline forward and backward

    Does the driver seat operate correctly? 

    Yes  The condition is intermittent. CHECK for causes of an intermittent concern, particularly the pins and terminals of electrical connectors that were disconnected.
    Do not install any new components at this time. Components should only be installed when directed to do so in the pinpoint test. 
    REPAIR any intermittent wiring, terminal or connector concerns found.
    No  If no seat movement occurs, GO to Pinpoint Test F  If the vertical seat movement operates only in one second increments, GO to H10 If the horizontal seat movement operates only in one second increments, GO to H13 If the recline seat movement operates only in one second increments, GO to H16 

  11. H10 CHECK THE HEIGHT MOTOR SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Disconnect: RH Side Airbag In-line C337 and Far Side Airbag In-line C3054 (if equipped).

    • Disconnect: DSM C341B and C341D.

    • Disconnect: RH Seat Height Motor C3075.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3075 Pin 2
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3075 Pin 4
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the affected circuit. GO to H21 
    No  GO to H11 

  12. H11 CHECK THE HEIGHT MOTOR SENSOR CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3075 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3075 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to H12 
    No  REPAIR the affected circuit. GO to H21 

  13. H12 CHECK THE HEIGHT MOTOR SENSOR CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3075 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 11
      C3075 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 20

    Are the resistances less than 3 ohms? 

    Yes  INSTALL a new RH seat track. REFER to: Front Seat Track . OPERATE the system and determine if the concern is still present. If the concern is still present, GO to H20  Otherwise, GO to H21 
    No  REPAIR the affected circuit. GO to H21 

  14. H13 CHECK THE HORIZONTAL SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Disconnect: RH Side Airbag In-line C337 and Far Side Airbag In-line C3054 (if equipped).

    • Disconnect: DSM C341B and C341D.

    • Disconnect: RH Seat Track Motor C3627.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3627 Pin 2
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3627 Pin 4
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present on any circuits? 

    Yes  REPAIR the affected circuit. GO to H21 
    No  GO to H14 

  15. H14 CHECK THE HORIZONTAL SENSOR CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3627 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3627 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to H15 
    No  REPAIR the affected circuit. GO to H21 

  16. H15 CHECK THE HORIZONTAL SENSOR CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3627 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 12
      C3627 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 20

    Are the resistances less than 3 ohms? 

    Yes  INSTALL a new RH seat track motor. REFER to: Front Seat Track Motor . OPERATE the system and determine if the concern is still present. If the concern is still present, GO to H20  Otherwise, GO to H21 
    No  REPAIR the affected circuit. GO to H21 

  17. H16 CHECK THE RECLINER SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Disconnect: RH Side Airbag In-line C337 and Far Side Airbag In-line C3054 (if equipped).

    • Disconnect: DSM C341A and C341D.

    • Disconnect: RH Seat Recliner Motor C3189.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3189 Pin 2
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3189 Pin 4
      GFD769080Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the affected circuit. GO to H21 
    No  GO to H17 

  18. H17 CHECK THE RECLINER SENSOR CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3189 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3189 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to H18 
    No  REPAIR the affected circuit. GO to H21 

  19. H18 CHECK THE RECLINER SENSOR CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3189 Pin 2
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 12
      C3189 Pin 4
      GFD769081Courtesy of FORD MOTOR COMPANY
      		 C341D Pin 14

    Are the resistances less than 3 ohms? 

    Yes  INSTALL a new RH seat backrest frame. REFER to: Front Seat Backrest . OPERATE the system and determine if the concern is still present. If the concern is still present, GO to H20  Otherwise, GO to H21 
    No  REPAIR the affected circuit. GO to H21 

  20. H19 CHECK THE DDM (DRIVER DOOR MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all of the DDM 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 DDM connectors. Make sure they seat and latch correctly.

    • Ignition ON.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DDM. REFER to: Driver Door Module (DDM) .
    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.

  21. H20 CHECK THE DSM (DRIVER FRONT SEAT MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all of the 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 DSM connectors. Make sure they seat and latch correctly.

    • Ignition ON.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSM. REFER to: Driver Front Seat Module (DSM) . GO to H21 
    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 H21 

  22. H21 VERIFY THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) PROVES OUT SUCCESSFULLY

    • Connect: RH Side Airbag In-line C337 and Far Side Airbag In-line C3054 (if equipped).

    • Connect all previously disconnected connectors.

    Did the SRS prove out successfully? 

    Yes  Repair is complete. RETURN the vehicle to the customer.
    No  REFER to: Airbag and Seatbelt Pretensioner Supplemental Restraint System (SRS) .
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