Pinpoint Test E: A Single Power Window Is Inoperative - Fusion, LH Front

NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

E1 CHECK THE VOLTAGE TO THE POWER WINDOW MOTOR
- Ignition OFF.
- Disconnect: LH Front Power Window Motor C540.
- Measure the voltage between LH front power window motor C540-4, circuit SBP01 (RD), harness side and ground.
  
  Fig 1: Measuring Voltage Between LH Front Power Window Motor C540-4, Circuit SBP01 (RD) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
  - Yes: GO to E2.
  - No: VERIFY Smart Junction Box (SJB) fuse 1 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams information to identify the possible causes of the circuit short. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E2 CHECK THE LH FRONT POWER WINDOW MOTOR GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Measure the resistance between LH front power window motor C540-3, circuit GD126 (BK/WH), harness side and ground.
  
  Fig 2: Measuring Resistance Between LH Front Power Window Motor C540-3, Circuit GD126 (BK/WH) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
  - Yes: GO to E3.
  - No: REPAIR the circuit. DE-INITIALIZE then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E3 CHECK THE MASTER WINDOW CONTROL SWITCH-TO-LH FRONT POWER WINDOW MOTOR CIRCUITS FOR AN OPEN
- Disconnect: LH Front Window Control Switch C535A (if RH front window is equipped with one-touch up/down) or C537A (if RH front window is not equipped with one-touch up/down).
- Measure the resistance between LH front power window motor C540-1, circuit CPW10 (YE/VT), harness side and master window control switch C535A-7 or C537A-1, circuit CPW10 (YE/VT), harness side.
  
  Fig 3: Measuring Resistance Between LH Front Power Window Motor C540-1, Circuit CPW10 (YE/VT) And Master Window Control Switch C535A-7 Or C537A-1, Circuit CPW10 (YE/VT)
  Courtesy of FORD MOTOR CO.
- Measure the resistance between LH front power window motor C540-6, circuit CPW11 (BU/GY), harness side and master window control switch C535A-3 or C537A-5, circuit CPW11 (BU/GY), harness side.
  
  Fig 4: Measuring Resistance Between LH Front Power Window Motor C540-6, Circuit CPW11 (BU/GY) And Master Window Control Switch C535A-3 Or C537A-5, Circuit CPW11 (BU/GY)
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
  - Yes: GO to E4.
  - No: REPAIR the circuit. DE-INITIALIZE then INITIALIZE the LH front power window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E4 CHECK THE MASTER WINDOW CONTROL SWITCH
- Carry out the master window control switch component test. Refer to COMPONENT TESTING for component testing.
- Did the master window control switch pass the component test?
  - Yes: INSTALL a new LH front power window motor. REFER to Window Regulator and Motor - Front Door . INITIALIZE the LH front power window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
  - No: INSTALL a new master window control switch. REFER to Window Control Switch . DE-INITIALIZE, then INITIALIZE the LH front power window motor. REFER to Window Motor Initialization . TEST the system for normal operation.