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Home >> Ford >> 2011 >> Explorer Base, AWD, 6F55 >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat System - Seating - 1ST Row >> Diagnostic Routine(S) >> Diagnostic Routine C >> Pinpoint Test

Pinpoint Test

  1. CHECK FOR VOLTAGE TO THE POWER LUMBAR MOTOR
      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.
    1. Ignition OFF.
    2. Disconnect: Driver Seat Side Air Bag C3051.
    3. Disconnect: Power Lumbar Motor C3215.
      4. NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the seat control switch is activated.
      Fig 1: Measuring Lumbar Motor Connector Terminals
      G07427471Courtesy of FORD MOTOR CO.
    4. While operating the seat control switch in both directions, measure:
      • Is the voltage greater than 11 volts when the seat control switch is operated and 0 volt in the rest position? 
      1. Yes:  INSTALL a new power lumbar assembly. REFER to LUMBAR ASSEMBLY - POWER . GO to 4  on page 4.
      2. No:  GO to 2  on page 2.
  2. CHECK THE POWER LUMBAR MOTOR CIRCUITS FOR A SHORT TO GROUND
    1. Disconnect: Driver Seat Control Switch C369.
    2. Measure:
      Fig 2: Identifying Driver Seat Control Switch Connector Terminal Identification
      G07427472Courtesy of FORD MOTOR CO.
      • Are the resistances greater than 10,000 ohms? 
      1. Yes:  GO to 3  on page 3.
      2. No:  REPAIR the affected circuit. GO to 4  on page 4.
  3. CHECK THE LUMBAR MOTOR CIRCUITS FOR AN OPEN
    1. Measure:
      Fig 3: Measuring Driver Seat Control Switch Connector And Power Lumbar Motor Connector Terminal Identification
      G07427473Courtesy of FORD MOTOR CO.
      • Are the resistances less than 3 ohms? 
      1. Yes:  INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . GO to 4  on page 4.
      2. No:  REPAIR the affected circuit. GO to 4  on page 4.
  4. CHECK FOR Supplemental Restraint System (SRS) Diagnostic Trouble Codes (DTCs)
      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.
    1. Ignition OFF.
    2. Connect: Driver Seat Side Air Bag C3051.
    3. Connect: All previously disconnected electrical connectors.
    4. Ignition ON.
    5. Using a scan tool, clear the Restraints Control Module (RCM) Diagnostic Trouble Codes (DTCs).
    6. Cycle the ignition OFF then ON.
    7. 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? 
      1. Yes:  REFER to DTC CHART: RESTRAINT CONTROL MODULE (RCM) for pinpoint test direction.
      2. No:  The repair is complete. RETURN the vehicle to the customer.
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