Pinpoint Test C: A Single Power Window Is Inoperative - 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.

C1 CHECK THE POWER TO THE WINDOW MOTOR
- Ignition OFF.
- Disconnect: LH Front Window Motor C524.
- Measure the voltage between LH front window motor C524-1, circuit SBP01 (RD), harness side and ground.
  
  Fig 1: Measuring Voltage Between LH Front Window Motor C524-1, Circuit SBP01 (RD), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to C2.
- No : VERIFY Battery Junction Box (BJB) fuse 1 (30A) is OK. If OK, REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor.
REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.

If not OK, REFER to the appropriate Systems Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
C2 CHECK THE LH FRONT WINDOW MOTOR DELAYED ACCESSORY FEED
- Ignition ON.
- Measure the voltage between LH front window motor C524-3, circuit CBP41 (BU), harness side and ground.
  
  Fig 2: Measuring Voltage Between LH Front Window Motor C524-3, Circuit CBP41 (BU), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes : GO to C3.
- No : VERIFY Smart Junction Box (SJB) fuse 41 (15A) is OK. If OK, REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
If not OK, REFER to the appropriate Systems Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
C3 CHECK THE LH FRONT WINDOW MOTOR GROUND
- Ignition OFF.
- Measure the resistance between LH front window motor C524-2, circuit GD133 (BK), harness side and ground.
  
  Fig 3: Measuring Resistance Between LH Front Window Motor C524-2, Circuit GD133 (BK), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to C4.
- No : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
C4 CHECK CIRCUIT CPW10 (YE/VT) FOR AN OPEN
- Disconnect: LH Front Window Control Switch C504.
- Measure the resistance between LH front window motor C524-5, circuit CPW10 (YE/VT), harness side and LH front window control switch C504-12, circuit CPW10 (YE/VT), harness side.
  
  Fig 4: Measuring Resistance Between LH Front Window Motor C524-5 And LH Front Window Control Switch C504-12, Circuit CPW10 (YE/VT)
  Courtesy of FORD MOTOR CO.
- Is the resistances less than 5 ohms?
- Yes : GO to C5.
- No : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
C5 CHECK CIRCUIT CPW11 (BU/GY) FOR AN OPEN
- Measure the resistance between LH front window motor C524-4, circuit CPW11 (BU/GY), harness side and LH front window control switch C504-5, circuit CPW11 (BU/GY), harness side.
  
  Fig 5: Measuring Resistance Between LH Front Window Motor C524-4 And LH Front Window Control Switch C504-5, Circuit CPW11 (BU/GY)
  Courtesy of FORD MOTOR CO.
- Is the resistances less than 5 ohms?
- Yes : GO to C6.
- No : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
C6 CHECK THE LH FRONT WINDOW CONTROL SWITCH
- Carry out the LH front window control switch component test.
  Refer to SYSTEM WIRING DIAGRAMS for component testing.
- Did the window control switch pass the component test?
- Yes : INSTALL a new LH front window regulator motor. REFER to WINDOW REGULATOR MOTOR - FRONT DOOR . INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
- No : INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH . INITIALIZE the LH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.