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Pinpoint Test L: The Memory Seat Is Inoperative

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. L1 RETRIEVE THE DTCs 
    WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.
    NOTE: If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.  Refer to SUPPLEMENTAL RESTRAINT SYSTEM .
    NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a SRS fault.
    NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
    • Key in OFF position.
      • WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected.
    • For vehicles equipped with seat side air bags, carry out the following:
    • Enter the following diagnostic mode on the scan tool: Retrieve and Document Continuous DTCs.
    • Enter the following diagnostic mode on the scan tool: Clear the Continuous DTCs.
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Are any DTCs retrieved? 

    Yes  : If DTCs B1663, B1664, B1665 and B1666 are all retrieved, GO to  L10.

    If DTC B1663, GO to  L20.

    If DTC B1664, GO to  L23.

    If DTC B1665, GO to  L26.

    If DTC B1666, GO to  L29.

    If DTC B1703, GO to  L3.

    If DTC B1707, GO to  L3.

    If DTC B1711, GO to  L3.

    If DTC B1715, GO to  L3.

    If DTC B1719, GO to  L3.

    If DTC B1723, GO to  L3.

    If DTC B1727, GO to  L3.

    If DTC B1731, GO to  L3.

    If DTC B1342, INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327.

    REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L2.

  2. L2 MONITOR THE DSM PIDs AND CHECK FOR CORRECT MEMORY SEAT SWITCH INPUTS 
    • Enter the following diagnostic mode on the scan tool: Select DSM PIDs.

      While monitoring the DSM driver seat control switch input status PIDs activate the seat control switch.

    • Do the PID values agree with the switch positions? 

    Yes  : GO to  L9.

    No  : VERIFY battery junction box (BJB) fuse 15 (10A) is OK.

    If BJB fuse 15 (10A) fails while operating the seat control switch, DISCONNECT the seat control switch C3297 and GO to  L7. If BJB fuse 15 (10A) is OK, GO to L3.

  3. L3 CHECK THE SEAT CONTROL SWITCH 
    • Key in OFF position.
    • Disconnect: Seat Control Switch C3297.
    • Check the seat control switch. Refer to COMPONENT TESTING .
    • Is the seat control switch OK? 

    Yes  : GO to L4.

    No  : INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  4. L4 CHECK CIRCUIT SBB15 (WH/RD) FOR VOLTAGE TO THE SEAT CONTROL SWITCH 
    • Measure the voltage between seat control switch C3297-5, circuit SBB15 (WH/RD), harness side and ground.
      Fig 1: Checking Circuit SBB15 (WH/RD) For Voltage To Seat Control Switch
      G04683241Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to L5.

    No  : VERIFY battery junction box (BJB) fuse 15 (10A) is OK. If BJB fuse 15 (10A) is OK, REPAIR the circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  5. L5 CHECK CIRCUIT GD126 (BK/WH) FOR AN OPEN 
    • Measure the resistance between seat control switch C3297-3, circuit GD126 (BK/WH), harness side and ground.
      Fig 2: Checking Circuit GD126 (BK/WH) For Open
      G04683242Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to L6.

    No  : REPAIR the circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  6. L6 CHECK SEAT CONTROL SWITCH TO DRIVER SEAT MODULE CIRCUITS FOR A SHORT TO POWER 
    • Disconnect: DSM C3299b.
    • Key in ON position.
    • Measure the voltage between the following seat control switch C3297 pins, harness side and ground.
      CONNECTOR-PIN CIRCUIT CHART

      Connector-Pin Circuit
      C3297-9 CPS06 (GN/WH)
      C3297-4 CPS01 (GN/BU)
      C3297-2 CPS03 (VT/GY)
      C3297-6 CPS02 (GY/YE)
      C3297-11 CPS07 (GY/BN)
      C3297-8 CPS08 (VT/OG)
      C3297-12 CPS04 (YE/OG)
      C3297-1 CPS05 (BU/WH)
      Fig 3: Checking Seat Control Switch To Driver Seat Module Circuits For Short To Power
      G04683243Courtesy of FORD MOTOR CO.
    • Is voltage indicated? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    No  : GO to L7.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  7. L7 CHECK SEAT CONTROL SWITCH TO DRIVER SEAT MODULE CIRCUITS FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Measure the resistance between the following seat control switch C3297 pins, harness side and ground.
      CONNECTOR-PIN CIRCUIT CHART

      Connector-Pin Circuit
      C3297-9 CPS06 (GN/WH)
      C3297-4 CPS01 (GN/BU)
      C3297-2 CPS03 (VT/GY)
      C3297-6 CPS02 (GY/YE)
      C3297-11 CPS07 (GY/BN)
      C3297-8 CPS08 (VT/OG)
      C3297-12 CPS04 (YE/OG)
      C3297-1 CPS05 (BU/WH)
      Fig 4: Checking Seat Control Switch To Driver Seat Module Circuits For Short To Ground
      G04683244Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L8.

  8. L8 CHECK SEAT CONTROL SWITCH TO DRIVER SEAT MODULE CIRCUITS FOR AN OPEN 
    • Measure the resistance between the following seat control switch C3297 pins, harness side and DSM C3299b pins, harness side.
      CONNECTOR-PIN CIRCUIT CHART

      Seat Control Switch Connector-Pin Circuit DSM Connector-Pin
      C3297-9 CPS06 (GN/WH) C3299b-15
      C3297-4 CPS01 (GN/BU) C3299b-3
      C3297-2 CPS03 (VT/GY) C3299b-14
      C3297-6 CPS02 (GY/YE) C3299b-2
      C3297-11 CPS07 (GY/BN) C3299b-17
      C3297-8 CPS08 (VT/OG) C3299b-5
      C3297-12 CPS04 (YE/OG) C3299b-4
      C3297-1 CPS05 (BU/WH) C3299b-16
      Fig 5: Checking Seat Control Switch To Driver Seat Module Circuits For Open
      G04683245Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs. DISCONNECT the battery ground cable.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  9. L9 CHECK THE DSM FOR CORRECT OUTPUTS USING A DIAGNOSTIC TOOL AND DSM ACTIVE COMMANDS 
    • Enter the following diagnostic mode on the scan tool: Active Commands: DRIVER SEAT OUTPUT CONTROL.

      Toggle the following DSM active commands ON and OFF while monitoring the seat movement:

      • FRONT MOTOR UP
      • FRONT MOTOR DOWN
      • REAR MOTOR UP
      • REAR MOTOR DOWN
      • HORIZONTAL MOTOR FORWARD
      • HORIZONTAL MOTOR BACKWARD
      • RECLINE MOTOR FORWARD
      • RECLINE MOTOR BACKWARD
    • Does the driver seat operate correctly? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : If no seat movement, GO to L10.

    If no front vertical seat movement, GO to  L20.

    If no rear vertical seat movement, GO to  L23.

    If no horizontal seat movement, GO to  L26.

    If no recline seat movement, GO to  L29.

  10. L10 CHECK DSM CIRCUIT SBB32 (VT/RD) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: DSM C3299a.
    • Measure the voltage between DSM C3299a-2, circuit SBB32 (VT/RD), harness side and ground.
      Fig 6: Checking DSM Circuit SBB32 (VT/RD) For Voltage
      G04683246Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : GO to L11.

    No  : VERIFY battery junction box (BJB) fuse 32 (30A) is OK. If OK, REPAIR the circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  11. L11 CHECK CIRCUIT GD126 (BK/WH) FOR AN OPEN 
    • Disconnect: DSM C3299c.
    • Measure the resistance between DSM C3299a-1, circuit GD126 (BK/WH), harness side and ground; and between DSM C3299c-13 pin 13, circuit GD126 (BK/WH), harness side and ground.
      Fig 7: Checking Circuit GD126 (BK/WH) For Open
      G04683247Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 

    Yes  : GO to L12.

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  12. L12 CHECK CIRCUITS CPS24 (GY) AND CPS25 (WH/VT) FOR A SHORT TO GROUND 
    • Disconnect: DSM C3299b.
    • Measure the resistance between DSM C3299b-9, circuit CPS25 (WH/VT), harness side and ground; and between DSM C3299b-23, circuit CPS24 (GY), harness side and ground.
      Fig 8: Checking Circuits CPS24 (GY) And CPS25 (WH/VT) For Short To Ground
      G04683248Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  L14.

    No  : GO to L13.

  13. L13 CHECK FRONT HEIGHT POWER SEAT MOTOR CIRCUITS CPS25 (WH/VT) AND CPS24 (GY) FOR A SHORT TO GROUND 
    • Disconnect: Power Seat Motor C357.
    • Measure the resistance between DSM C3299b-9, circuit CPS25 (WH/VT), harness side and ground; and between DSM C3299b-23, circuit CPS24 (GY), harness side and ground.
      Fig 9: Checking Front Height Power Seat Motor Circuits CPS25 (WH/VT) And CPS24 (GY) For Short To Ground
      G04683249Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  14. L14 CHECK CIRCUITS CPS27 (BU/BN) AND CPS26 (YE/BU) FOR A SHORT TO GROUND 
    • Measure the resistance between DSM C3299b-8, circuit CPS27 (BU/BN), harness side and ground; and between DSM C3299b-22, circuit CPS26 (YE/BU), harness side and ground.
      Fig 10: Checking Circuits CPS27 (BU/BN) And CPS26 (YE/BU) For Short To Ground
      G04683250Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  L16.

    No  : GO to L15.

  15. L15 CHECK THE REAR HEIGHT POWER SEAT MOTOR CIRCUITS CPS27 (BU/BN) AND CPS26 (YE/BU) FOR A SHORT TO GROUND 
    • Disconnect: Power Seat Motor C357.
    • Measure the resistance between DSM C3299b-8, circuit CPS27 (BU/BN), harness side and ground; and between DSM C3299b-22, circuit CPS26 (YE/BU), harness side and ground.
      Fig 11: Checking Rear Height Power Seat Motor Circuits CPS27 (BU/BN) And CPS26 (YE/BU) For Short To Ground
      G04683251Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  16. L16 CHECK CIRCUITS CPS23 (GN/VT) AND CPS22 (BN) FOR A SHORT TO GROUND 
    • Measure the resistance between DSM C3299b-10, circuit CPS23 (GN/VT), harness side and ground; and between DSM C3299b-12, circuit CPS22 (BN), harness side and ground.
      Fig 12: Checking Circuits CPS23 (GN/VT) And CPS22 (BN) For Short To Ground
      G04683252Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  L18.

    No  : GO to L17.

  17. L17 CHECK THE HORIZONTAL POWER SEAT MOTOR CIRCUITS CPS23 (GN/VT) AND CPS22 (BN) FOR A SHORT TO GROUND 
    • Disconnect: Power Seat Motor C357.
    • Measure the resistance between DSM C3299b-10, circuit CPS23 (GN/VT), harness side and ground; and between DSM C3299b-12, circuit CPS22 (BN), harness side and ground.
      Fig 13: Checking Horizontal Power Seat Motor Circuits CPS23 (GN/VT) And CPS22 (BN) For Short To Ground
      G04683253Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  18. L18 CHECK CIRCUITS CPS29 (WH/BN) AND CPS30 (VT/BN) FOR A SHORT TO GROUND 
    • Measure the resistance between DSM C3299b-11, circuit CPS29 (WH/BN), harness side and ground; and between DSM C3299b-21, circuit CPS30 (VT/BN), harness side and ground.
      Fig 14: Checking Circuits CPS29 (WH/BN) And CPS30 (VT/BN) For Short To Ground
      G04683254Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L19.

  19. L19 CHECK THE DRIVER POWER SEAT RECLINER MOTOR CIRCUITS CPS29 (WH/BN) AND CPS30 (VT/BN) FOR A SHORT TO GROUND 
    • Disconnect: Driver Power Seat Recliner Motor C3187.
    • Measure the resistance between DSM C3299b-11, circuit CPS29 (WH/BN), harness side and ground; and between DSM C3299b-21, circuit CPS30 (VT/BN), harness side and ground.
      Fig 15: Checking Driver Power Seat Recliner Motor Circuits CPS29 (WH/BN) And CPS30 (VT/BN) For Short To Ground
      G04683255Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new driver seat recliner motor. REFER to SEAT RECLINER MOTOR . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  20. L20 CHECK THE FRONT HEIGHT POWER SEAT MOTOR FOR CORRECT OPERATION 
    • Key in OFF position.
    • Disconnect: Power Seat Motor C357.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: DSM Active Command: DRIVER SEAT OUTPUT CONTROL.
    • Measure the voltage between power seat motor C357-2, circuit CPS25 (WH/VT) and C357-5, circuit CPS24 (GY), harness side while toggling DSM active commands FRONT MOTOR UP and FRONT MOTOR DOWN, ON and OFF.
      Fig 16: Checking Front Height Power Seat Motor For Correct Operation
      G04683256Courtesy of FORD MOTOR CO.
    • Is voltage present when the motor is commanded ON and no voltage present when commanded OFF? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L21.

  21. L21 CHECK CIRCUITS CPS25 (WH/VT) AND CPS24 (GY) FOR A SHORT TO POWER 
    • Key in OFF position.
    • Disconnect: DSM C3299b.
    • Key in ON position.
    • Measure the voltage between DSM C3299b-9, circuit CPS25 (WH/VT), harness side and ground; and between DSM C3299b-23, circuit CPS24 (GY), harness side and ground.
      Fig 17: Checking Circuits CPS25 (WH/VT) And CPS24 (GY) For Short To Power
      G04683257Courtesy of FORD MOTOR CO.
    • Is voltage indicated? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L22.

  22. L22 CHECK CIRCUITS CPS25 (WH/VT) AND CPS24 (GY) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between DSM C3299b-9, circuit CPS25 (WH/VT), harness side and power seat motor C357-2, circuit CPS25 (WH/VT), harness side; and between DSM C3299b-23, circuit CPS24 (GY), harness side and power seat motor C357-5, circuit CPS24 (GY), harness side.
      Fig 18: Checking Circuits CPS25 (WH/VT) And CPS24 (GY) For Open
      G04683258Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  23. L23 CHECK THE REAR HEIGHT MOTOR FOR CORRECT OPERATION 
    • Key in OFF position.
    • Disconnect: Power Seat Motor C357.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: DSM Active Command: DRIVER SEAT OUTPUT CONTROL.
    • Measure the voltage between power seat motor C357-1, circuit CPS27 (BU/BN), harness side and C357-4, circuit CPS26 (YE/BU), harness side while toggling DSM active commands REAR MOTOR UP and REAR MOTOR DOWN, ON and OFF.
      Fig 19: Checking Rear Height Motor For Correct Operation
      G04683259Courtesy of FORD MOTOR CO.
    • Is voltage present when the motor is commanded ON and no voltage present when commanded OFF? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L24.

  24. L24 CHECK CIRCUITS CPS27 (BU/BN) AND CPS26 (YE/BU) FOR A SHORT TO POWER 
    • Key in OFF position.
    • Disconnect: DSM C3299b.
    • Key in ON position.
    • Measure the voltage between DSM C3299b-8, circuit CPS27 (BU/BN), harness side and ground; and between DSM C3299b-22, circuit CPS26 (YE/BU), harness side and ground.
      Fig 20: Checking Circuits CPS27 (BU/BN) And CPS26 (YE/BU) For Short To Power
      G04683260Courtesy of FORD MOTOR CO.
    • Is voltage indicated? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    No  : GO to L25.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  25. L25 CHECK CIRCUITS CPS27 (BU/BN) AND CPS26 (YE/BU) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between DSM C3299b-8, circuit CPS27 (BU/BN), harness side and power seat motor C357-1, circuit CPS27 (BU/BN), harness side; and between DSM C3299b-22, circuit CPS26 (YE/BU), harness side and rear height power seat motor C357-4, circuit CPS26 (YE/BU), harness side.
      Fig 21: Checking Circuits CPS27 (BU/BN) And CPS26 (YE/BU) For Open
      G04683261Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs. DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  26. L26 CHECK THE HORIZONTAL MOTOR FOR CORRECT OPERATION 
    • Key in OFF position.
    • Disconnect: Power Seat Motor C357.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: DSM Active Command: DRIVER SEAT OUTPUT CONTROL.
    • Measure the voltage between power seat motor C357-3, circuit CPS22 (BN) and C357-6, circuit CPS23 (GN/VT), harness side while toggling DSM active commands HORIZONTAL MOTOR FORWARD and HORIZONTAL MOTOR BACKWARD, ON and OFF.
      Fig 22: Checking Horizontal Motor For Correct Operation
      G04683262Courtesy of FORD MOTOR CO.
    • Is voltage present when the motor is commanded ON and no voltage present when commanded OFF? 

    Yes  : INSTALL a new driver seat track assembly. REFER to SEAT TRACK . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L27.

  27. L27 CHECK CIRCUITS CPS22 (BN) AND CPS23 (GN/VT) FOR A SHORT TO POWER 
    • Key in OFF position.
    • Disconnect: DSM C3299b.
    • Key in ON position.
    • Measure the voltage between DSM C3299b-10, circuit CPS23 (GN/VT), harness side and ground; and between DSM C3299b-12, circuit CPS22 (BN), harness side and ground.
      Fig 23: Checking Circuits CPS22 (BN) And CPS23 (GN/VT) For Short To Power
      G04683263Courtesy of FORD MOTOR CO.
    • Is voltage indicated? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L28.

  28. L28 CHECK CIRCUITS CPS23 (GN/VT) AND CPS22 (BN) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between DSM C3299b-10, circuit CPS23 (GN/VT), harness side and power seat motor C357-6, circuit CPS23 (GN/VT), harness side; and between DSM C3299b-12, circuit CPS22 (BN), harness side and horizontal power seat motor C357-3, circuit CPS22 (BN), harness side.
      Fig 24: Checking Circuits CPS23 (GN/VT) And CPS22 (BN) For Open
      G04683264Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

  29. L29 CHECK THE DRIVER SEAT POWER RECLINER MOTOR FOR CORRECT OPERATION 
    • Key in OFF position.
    • Disconnect: Driver Seat Power Recliner Motor C3187.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: DSM Active Command: DRIVER SEAT OUTPUT CONTROL.
    • Measure the voltage between driver seat power recliner motor C3187-1, circuit CPS29 (WH/BN) and C3187-5, circuit CPS30 (VT/BN), harness side while toggling DSM active commands RECLINE MOTOR FORWARD and RECLINE MOTOR BACKWARD, ON and OFF.
      Fig 25: Checking Driver Seat Power Recliner Motor For Correct Operation
      G04683265Courtesy of FORD MOTOR CO.
    • Is voltage present when the motor is commanded ON and no voltage present when commanded OFF? 

    Yes  : INSTALL a new driver seat recliner motor. REFER to SEAT RECLINER MOTOR . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L30.

  30. L30 CHECK CIRCUITS CPS29 (WH/BN) AND CPS30 (VT/BN) FOR A SHORT TO POWER 
    • Key in OFF position.
    • Disconnect: DSM C3299b.
    • Key in ON position.
    • Measure the voltage between DSM C3299b-11, circuit CPS29 (WH/BN), harness side and ground; and between DSM C3299b-21, circuit CPS30 (VT/BN), harness side and ground.
      Fig 26: Checking Circuits CPS29 (WH/BN) And CPS30 (VT/BN) For Short To Power
      G04683266Courtesy of FORD MOTOR CO.
    • Is voltage indicated? 

    Yes  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : GO to L31.

  31. L31 CHECK CIRCUITS CPS29 (WH/BN) AND CPS30 (VT/BN) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between DSM C3299b-11, circuit CPS29 (WH/BN), harness side and recliner power seat motor C3187-1, circuit CPS29 (WH/BN), harness side; and between DSM C3229b-21, circuit CPS30 (VT/BN), harness side and recliner power seat motor C3187-5, circuit CPS30 (VT/BN), harness side.
      Fig 27: Checking Circuits CPS29 (WH/BN) And CPS30 (VT/BN) For Open
      G04683267Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 

    Yes  : INSTALL a new DSM. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CARRY OUT programmable module installation (PMI). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

    No  : REPAIR the affected circuit. REPEAT the self-test. CLEAR the DTCs.

    For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .

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