Pinpoint Test

CHECK THE POWER TO THE WINDOW MOTOR
1. Ignition OFF.
2. Disconnect: Left Hand (LH) Front Window Motor C524.
3. Measure:
  
  Fig 1: Checking Power To Window Motor
  Courtesy of FORD MOTOR CO.
  - Is the voltage greater than 11 volts?
  - Yes: GO to step 2 .
  - No: VERIFY Body Control Module (BCM) fuse 1 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. DE-INITIALIZE, then INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
CHECK THE Left Hand (LH) FRONT WINDOW MOTOR DELAYED ACCESSORY FEED
1. Ignition ON.
2. Measure:
  
  Fig 2: Checking Left Hand (LH) Front Window Motor Delayed Accessory Feed
  Courtesy of FORD MOTOR CO.
  - Is the voltage greater than 11 volts?
  - Yes: GO to step 3 .
  - No: VERIFY Body Control Module (BCM) fuse 32 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. DE-INITIALIZE, then INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
CHECK THE Left Hand (LH) FRONT WINDOW MOTOR GROUND
1. Ignition OFF.
2. Measure:
  
  Fig 3: Checking Left Hand (LH) Front Window Motor Ground
  Courtesy of FORD MOTOR CO.
  - Is the resistance less than 3 ohms?
  - Yes: GO to step 4 .
  - No: REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
CHECK THE VOLTAGE SIGNAL FROM THE Left Hand (LH) FRONT WINDOW CONTROL SWITCH
1. Ignition ON.
2. While pressing and releasing the Left Hand (LH) front window control switch, measure:
  
  Fig 4: Checking Voltage Signal From Left Hand (LH) Front Window Control Switch
  Courtesy of FORD MOTOR CO.
  - Is the voltage greater than 11 volts when the Left Hand (LH) front window control switch is pressed; and 0 volt when the switch is released?
  - Yes: INSTALL a new Left Hand (LH) front window regulator motor. REFER to WINDOW REGULATOR MOTOR - FRONT DOOR . INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
  - No: If voltage was less than 11 volts when the switch was pressed, GO to step 5 .
    If voltage was greater than 0 volt when the switch was released, GO to step 6 .
CHECK FOR AN OPEN BETWEEN THE Left Hand (LH) FRONT WINDOW CONTROL SWITCH AND THE WINDOW MOTOR
1. Ignition OFF.
2. Disconnect: Left Hand (LH) Front Window Control Switch.
3. Measure:
  
  Fig 5: Checking For Open Between Left Hand (LH) Front Window Control Switch And Window Motor
  Courtesy of FORD MOTOR CO.
  - Yes: INSTALL a new Left Hand (LH) front window control switch. REFER to WINDOW CONTROL SWITCH .
    INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
  - No: REPAIR the affected circuit. DE-INITIALIZE, then INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
CHECK THE Left Hand (LH) FRONT WINDOW CONTROL SWITCH CIRCUITS FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: Left Hand (LH) Front Window Control Switch.
3. Ignition ON.
4. Measure:
  
  Fig 6: Checking Left Hand (LH) Front Window Control Switch Circuits For Short To Voltage
  Courtesy of FORD MOTOR CO.
  - Is any voltage present?
  - Yes: REPAIR the affected circuit. INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .
  - No: INSTALL a new Left Hand (LH) front window control switch. REFER to WINDOW CONTROL SWITCH .
    INITIALIZE the Left Hand (LH) front window motor. REFER to WINDOW MOTOR INITIALIZATION .