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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 847 (Seat System) >> Diagnosis And Testing >> Seats >> Pinpoint Tests >> Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically

Pinpoint Test E: The Power Seat Does Not Move Horizontally/Vertically

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  1. E1 DETERMINE WHICH DIRECTION HAS FAILED 
    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 seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the supplemental restraint system (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 supplemental restraint system (SRS) fault.
    NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
    • Operate the power seat.
    • Will the track move horizontally? 
    • Yes  : GO to  E5.
    • No  : GO to E2.
  2. E2 CHECK THE VOLTAGE TO THE FORWARD REVERSE SEAT MOTOR 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Driver Safety Belt Pretensioner C323.
      • 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.
    • Connect the battery ground cable.
    • Disconnect: Power Seat Motor Assembly C353.
    • Measure the voltage between the power seat motor assembly C353 pin 3, circuit 981 (RD/WH), harness side and pin 6, circuit 980 (YE/WH), harness side; while depressing the forward/reverse switch forward and backward.
      Fig 1: Checking Voltage Between Connector Terminals
      G03890780Courtesy of FORD MOTOR CO.
    • Is the voltage less than -10 volts when the forward reverse switch is pressed forward, greater than +10 volts when the forward reverse switch is pressed backward and 0 volts with the switch in the rest position? 
    • Yes  : INSTALL a new seat track (seat motor assembly). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : GO to E3.
  3. E3 CHECK CIRCUIT 980 (YE/WH) 
    • Disconnect: Seat Regulator Control Switch C360.
    • Measure the resistance the power seat motor assembly C353 pin 6, circuit 980 (YE/WH), harness side and the seat regulator control switch C360 pin 5, circuit 980 (YE/WH), harness side; and between the seat regulator control switch C360 pin 5, circuit 980 (YE/WH), harness side and ground.
      Fig 2: Measuring Resistance Between Power Seat Motor Assembly Pin 6 And Seat Regulator Control Switch Pin 5
      G03890781Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the forward reverse seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : GO to E4.
    • No  : REPAIR circuit 980 (YE/WH). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
  4. E4 CHECK CIRCUIT 981 (RD/WH) 
    • Measure the resistance between the power seat motor assembly C353 pin 3, circuit 981 (RD/WH), harness side and the seat regulator control switch C360 pin 2, circuit 981 (RD/WH), harness side; and between the seat regulator control switch C360 pin 2, circuit 981 (RD/WH), harness side and ground.
      Fig 3: Measuring Resistance Between Power Seat Motor Assembly Pin 3 And Seat Regulator Control Switch Pin 2
      G03890782Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the forward reverse seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : INSTALL a new seat regulator control switch. DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : REPAIR circuit 981 (RD/WH). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
  5. E5 DETERMINE SEAT TILTING FAILURE 
    • Determine seat tilting failure.
    • Can the seat be tilted forward or backward? 
    • Yes  : If only the forward tilting works, GO to E6.

      If only the rear tilting works, GO to  E9.

    • No  : INSTALL a new seat regulator control switch. DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
  6. E6 CHECK THE VOLTAGE TO THE REAR TILTING SEAT MOTOR 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Driver Safety Belt Pretensioner C323.
      • 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.
    • Connect the battery ground cable.
    • Disconnect: Power Seat Motor Assembly C353.
    • Measure the voltage between the power seat motor assembly C353 pin 5, circuit 983 (RD/LG), harness side and pin 4, circuit 982 (YE/LG), harness side; while depressing the rear tilting switch up and down.
      Fig 4: Checking Voltage To Motor Connector
      G03890783Courtesy of FORD MOTOR CO.
    • Is the voltage greater than +10 volts when the rear tilting switch is pressed up, less than -10 volts when the rear tilting switch is pressed down and 0 volts with the switch in the rest position? 
    • Yes  : INSTALL a new seat track (seat motor assembly). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : GO to E7.
  7. E7 CHECK CIRCUIT 983 (RD/LG) 
    • Disconnect: Seat Regulator Control Switch C360.
    • Measure the resistance between the power seat motor assembly C353 pin 5, circuit 983 (RD/LG), harness side and the seat regulator control switch C360 pin 4, circuit 983 (RD/LG), harness side; and between the seat regulator control switch C360 pin 4, circuit 983 (RD/LG), harness side and ground.
      Fig 5: Measuring Resistance Between Power Seat Motor Assembly Pin 5 And Seat Regulator Control Switch Pin 4
      G03890784Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the rear tilting seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : GO to E8.
    • No  : REPAIR circuit 983 (RD/LG). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
  8. E8 CHECK CIRCUIT 982 (YE/LG) 
    • Measure the resistance between the power seat motor assembly C353 pin 4, circuit 982 (YE/LG), harness side and the seat regulator control switch C360 pin 7, circuit 982 (YE/LG), harness side; and between the seat regulator control switch C360 pin 7, circuit 982 (YE/LG), harness side and ground.
      Fig 6: Measuring Resistance Between Power Seat Motor Assembly Pin 4 And Seat Regulator Control Switch Circuit Pin 7
      G03890785Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the rear tilting seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : INSTALL a new seat regulator control switch. DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : REPAIR circuit 982 (YE/LG). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM TEST the system for normal operation.
  9. E9 CHECK THE VOLTAGE TO THE FRONT TILTING SEAT MOTOR 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of SUPPLEMENTAL RESTRAINT SYSTEM .
    • Disconnect: Driver Safety Belt Pretensioner C323.
      • 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.
    • Connect the battery ground cable.
    • Disconnect: Power Seat Motor Assembly C353.
    • Measure the voltage between the power seat motor assembly C353 pin 1, circuit 979 (RD/LB), harness side and pin 2, circuit 990 (YE/LB), harness side; while depressing the front tilting switch up and down.
      Fig 7: Checking Voltage Of Rear Height Motor
      G03890786Courtesy of FORD MOTOR CO.
    • Is the voltage greater than +10 volts when the front tilting switch is pressed up, less than -10 volts when the front tilting switch is pressed down and 0 volts with the switch in the rest position? 
    • Yes  : INSTALL a new seat track (seat motor assembly). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : GO to E10.
  10. E10 CHECK CIRCUIT 979 (RD/LB) 
    • Disconnect: Seat Regulator Control Switch C360.
    • Measure the resistance between the power seat motor assembly C353 pin 1, circuit 979 (RD/LB), harness side and the seat regulator control switch C360 pin 6, circuit 979 (RD/LB), harness side; and between the seat regulator control switch C360 pin 6, circuit 979 (RD/LB), harness side and ground.
      Fig 8: Measuring Resistance Between Power Seat Motor Assembly Pin 1 And Seat Regulator Control Switch Pin 6
      G03890787Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the front tilting seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : GO to E11.
    • No  : REPAIR circuit 979 (RD/LB). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
  11. E11 CHECK CIRCUIT 990 (YE/LB) 
    • Measure the resistance between the power seat motor assembly C353 pin 2, circuit 990 (YE/LB), harness side and the seat regulator control switch C360 pin 8, circuit 990 (YE/LB), harness side; and between the seat regulator control switch C360 pin 8, circuit 990 (YE/LB), harness side and ground.
      Fig 9: Measuring Resistance Between Power Seat Motor Assembly Pin 2 And Seat Regulator Control Switch Pin 8
      G03890788Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the front tilting seat motor connector and the seat regulator control switch connector, and greater than 10,000 ohms between the seat regulator control switch connector and chassis ground? 
    • Yes  : INSTALL a new seat regulator control switch. DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
    • No  : REPAIR circuit 990 (YE/LB). DISCONNECT the battery ground cable. CONNECT driver safety belt pretensioner C323. REPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation.
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