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Pinpoint Test F: A Single Power Window Is Inoperative - LH Rear

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.
  1. F1 CHECK THE LH REAR POWER WINDOW OPERATION FROM LH FRONT CONTROL SWITCH 
    • Ignition ON.
    • Attempt to operate the LH rear window from the LH front window control switch.
    • Does the LH rear window operate when using the LH front window control switch? 
    • Yes  : GO to F2.
    • No  : GO to  F4.
  2. F2 CHECK CIRCUIT CPW14 (VT/WH) FOR VOLTAGE 
    • Disconnect: LH Rear Window Control Switch C701.
    • Ignition ON.
      • NOTE: Make sure the LH window control switch lockout switch is in the UNLOCK position.
      Fig 1: Measuring Voltage Between LH Rear Window Control Switch C701-3, Circuit CPW14 (VT/WH), Harness Side And Ground
      G07812723Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH rear window control switch C701-3, circuit CPW14 (VT/WH), harness side and ground.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new LH rear window control switch. REFER to WINDOW CONTROL SWITCH  . TEST the system for normal operation.
    • No  : GO to F3.
  3. F3 CHECK THE LH FRONT WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Disconnect: LH Front Window Control Switch C504.
    • Carry out the LH front window control switch component test. Refer to COMPONENT TESTING Article for component testing.
    • Did the LH front window control switch pass the component test? 
    • Yes  : REPAIR open in circuit CPW14 (VT/WH). TEST the system for normal operation.
    • No  : INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH  . TEST the system for normal operation.
  4. F4 CHECK THE LH REAR POWER WINDOW OPERATION FROM LH REAR CONTROL SWITCH 
    • Ignition ON.
    • Attempt to operate the LH rear window from the LH rear window control switch.
    • Does the LH rear window operate when using the LH rear window control switch? 
    • Yes  : GO to F5.
    • No  : GO to  F6.
  5. F5 CHECK CIRCUITS CPW16 (BU/OG) AND CPW15 (YE) FOR AN OPEN 
    • Measure the resistance between LH rear window control switch C701-1, circuit CPW16 (BU/OG), harness side and LH front window control switch C504-6, circuit CPW16 (BU/OG), harness side.
      Fig 2: Measuring Resistance Between LH Rear Window Control Switch C701-1 And LH Front Window Control Switch C504-6, Circuit CPW16 (BU/OG)
      G07812724Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH rear window control switch C701-4, circuit CPW15 (YE), harness side and LH front window control switch C504-14, circuit CPW15 (YE), harness side.
      Fig 3: Measuring Resistance Between LH Rear Window Control Switch C701-4 And LH Front Window Control Switch C504-14, Circuit CPW15 (YE)
      G07812725Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH  . TEST the system for normal operation.
    • No  : REPAIR the circuit(s). TEST the system for normal operation.
  6. F6 CHECK THE HIGH CURRENT POWER TO THE LH REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Disconnect: LH Rear Window Control Switch C701.
    • Ignition ON.
    • Measure the voltage between LH rear window control switch C701-5, circuit CBP47 (GN/BU), harness side and ground.
      Fig 4: Measuring Voltage Between LH Rear Window Control Switch C701-5, Circuit CBP47 (GN/BU), Harness Side And Ground
      G07812726Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to F7.
    • No  : VERIFY Smart Junction Box (SJB) circuit breaker 47 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation. If not OK, REFER to the SYSTEM WIRING DIAGRAMS Article to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation.
  7. F7 CHECK THE GROUND TO THE LH REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Measure the resistance between LH rear window control switch C701-8, circuit GD133 (BK), harness side and ground.
      Fig 5: Measuring Resistance Between LH Rear Window Control Switch C701-8, Circuit GD133 (BK), Harness Side And Ground
      G07812727Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to F8.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  8. F8 CHECK THE LH REAR WINDOW CONTROL SWITCH 
    • Carry out the LH rear window control switch component test. Refer to COMPONENT TESTING Article for component testing.
    • Did the LH rear window control switch pass the component test? 
    • Yes  : GO to F9.
    • No  : INSTALL a new LH rear window control switch. REFER to WINDOW CONTROL SWITCH  . TEST the system for normal operation.
  9. F9 CHECK CIRCUITS CPW21 (BN) AND CPW22 (GN/VT) FOR AN OPEN 
    • Disconnect: LH Rear Window Motor C703.
    • Measure the resistance between LH rear window control switch C701-6, circuit CPW22 (GN/VT), harness side and LH rear window motor C703-2, circuit CPW22 (GN/VT), harness side.
      Fig 6: Measuring Resistance Between LH Rear Window Control Switch C701-6 And LH Rear Window Motor C703-2, Circuit CPW22 (GN/VT)
      G07812728Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH rear window control switch C701-7, circuit CPW21 (BN), harness side and LH rear window motor C703-1, circuit CPW21 (BN), harness side.
      Fig 7: Measuring Resistance Between LH Rear Window Control Switch C701-7 And LH Rear Window Motor C703-1, Circuit CPW21 (BN)
      G07812729Courtesy of FORD MOTOR CO.
    • Are both resistances less than 5 ohms? 
    • Yes  : INSTALL a new LH rear window motor. REFER to WINDOW REGULATOR MOTOR - REAR DOOR  . TEST the system for normal operation.
    • No  : REPAIR the circuit(s). TEST the system for normal operation.
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