Pinpoint Test S: The Power Seat Is Inoperative - Second Row, Power-Fold Seat Does Not Latch To The Floor

• Open any of the vehicle doors and check the map/reading lamp operation.
• Check the electrical operation of the opposite seat release system to verify system voltage is present.

Do the interior map/reading lamps operate correctly? 

• Yes  : If the opposite seat does not operate from the seat control switch, GO to  S3.

  Otherwise, GO to S2  .

• No  : REFER to Interior Lighting to diagnose the inoperative demand lighting/battery saver concern.

• Inspect both latch feet on the affected seat to make sure neither of the latches are closed and manually release them from the pull strap if needed.
• Check the seat release pull strap is not binding and holding the latches in a released state.
• Inspect the release cables for kinks or damage causing the cable(s) to bind.
• Check the cables and cable mounting for disconnection.

Is a mechanical concern found? 

• Yes  : DISASSEMBLE the seat as necessary to REPAIR the latch(es), cable(s) or release pull strap. TEST the system for normal operation.

  If the cause is not found, DETACH the power-fold release cable from the latch and RETEST the mechanical latch operation. If the latch(es) continue to be inoperative with the cable detached, INSTALL a new latch mechanism or latch foot/feet as needed. REASSEMBLE the seat and TEST for normal operation.

  If the seat latches and manually releases correctly with the power-fold seat motor cable disconnected, GO to S3  .

• No  : GO to S3  .

• Ignition OFF.
• 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.

  If equipped with inflatable safety belts, disconnect 2nd Row Safety Belt Inflator C3801 (LH) or C3645 (RH). To access the electrical connector(s):

  • Remove 5 screws and the seat track inboard inner and outer covers.
  • Detach the cushion cover front and inboard retainers.
  • Lift the cushion cover and foam pad.
• Disconnect: LH Power-Fold Seat Motor C3345 or RH Power-Fold Seat Motor C3346.
• Measure the voltage between LH power-fold seat motor C3345-1  , circuit SBP02 (YE/RD), harness side and ground; or between RH power-fold seat motor C3346-1  , circuit SBP02 (YE/RD), harness side and ground.
  Fig 1: Measuring Voltage Between LH Power-Fold Seat Motor C3345-1, Circuit SBP20 (GN/RD) And Ground

  Courtesy of FORD MOTOR CO.

Is the voltage greater than 11 volts? 

• Yes  : GO to S4  .
• No  : VERIFY BCM  fuse 2 (15A) is OK. If the fuse is OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short. TEST the system for normal operation.

  If equipped with inflatable safety belts, GO to  S5.

• Measure the resistance between LH power-fold seat motor C3345-2  , circuit GD349 (BK/GY), harness side and ground; or between RH power-fold seat motor C3346-2  , circuit GD351 (BK/GN), harness side and ground.
  Fig 2: Measuring Resistance Between LH Power-Fold Seat Motor C3345-2, Circuit GD349 (BK/GY) And Ground

  Courtesy of FORD MOTOR CO.

Is the resistance less than 3 ohms? 

• Yes  : INSTALL a new LH or RH power-fold seat motor. REFER to POWER-FOLD SEAT MOTOR - SECOND ROW, 40 PERCENT  in this article. TEST the system for normal operation.

  If equipped with inflatable safety belts, GO to S5  .

• No  : REPAIR the circuit. TEST the system for normal operation.

  If equipped with inflatable safety belts, GO to S5  .

• Ignition OFF.
• Connect: 2nd Row Safety Belt Inflator C3801 (LH) or C3645 (RH).
• Ignition ON.
• Using a scan tool, clear the RCM  DTCs.
• Cycle the ignition OFF then ON.
• Using a scan tool, perform RCM  self-test.

Are any RCM DTCs retrieved during self-test? 

• Yes  : REFER to SUPPLEMENTAL RESTRAINT SYSTEM for pinpoint test direction.
• No  : The repair is complete. RETURN the vehicle to the customer.