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

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

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 LH REAR WINDOW CONTROL SWITCH
- Disconnect: LH Rear Window Control Switch C701 .
- Ignition ON.
- NOTE: Set the LH front window lock-out switch to the UNLOCK position.
  
  Measure the voltage between LH rear window control switch C701-2 , circuit CPW14 (VT/WH), harness side and ground.
  
  Fig 1: Checking Voltage To LH Rear Window Control Switch
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 10 volts?
- Yes : GO to E3.
- No : GO to E2 .
E2 CHECK THE WINDOW CONTROL SWITCH POWER CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: LH Front Window Control Switch C535B .
- Measure the resistance between LH rear window control switch C701-2 , circuit CPW14 (VT/WH), harness side and LH front window control switch C535B-4 , circuit CPW14 (VT/WH), harness side.
  
  Fig 2: Checking Window Control Switch Power Circuit For Open
  Courtesy of FORD MOTOR CO.
Is the resistance less than 5 ohms?
- Yes : INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH - FRONT . TEST the system for normal operation.
- No : REPAIR the circuit. TEST the system for normal operation.
E3 CHECK THE GROUNDS TO THE LH REAR WINDOW CONTROL SWITCH
- Ignition OFF.
- Measure the resistance between LH rear window control switch C701-1 , circuit CPW16 (BU/OG), harness side and ground; and between LH rear window control switch C701-3 , circuit CPW15 (YE), harness side and ground.
  
  Fig 3: Measuring Resistance Between LH Rear Window Control Switch C701-1, Circuit CPW16 (BU/OG) And Ground
  Courtesy of FORD MOTOR CO.
Are the resistances less than 5 ohms?
- Yes : GO to E5.
- No : GO to E4 .

E4 CHECK THE CIRCUITS TO THE LH REAR WINDOW CONTROL SWITCH FOR AN OPEN

Disconnect: LH Front Window Control Switch C535B .

Measure the resistance between LH rear window control switch C701 , harness side and LH front window control switch C535B , harness side using the following chart:

LH Rear Window Control Switch	Circuit	LH Front Window Control Switch
C701-3	CPW15 (YE)	C535B-6
C701-1	CPW16 (BU/OG)	C535B-5

Fig 4: Measuring Resistance Between LH Rear Window Control Switch C701 And LH Front Window Control Switch C535B

Courtesy 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 - FRONT . TEST the system for normal operation.
No : REPAIR the circuit(s). TEST the system for normal operation.

E5 CHECK THE LH REAR WINDOW OPERATION
- Ignition ON.
  NOTE: Set the LH front window lock-out switch to the UNLOCK position.
- Connect a fused jumper wire between LH rear window control switch C701-2 , circuit CPW14 (VT/WH), harness side and C701-6 , circuit CPW21 (BN), harness side; and a second fused jumper wire between LH rear window control switch C701-4 , circuit CPW22 (GN/VT), harness side and C701-1 , circuit CPW16 (BU/OG), harness side. The LH rear window should operate in the upward direction.
  
  Fig 5: Checking RH Front Window (Upward)
  Courtesy of FORD MOTOR CO.
- Connect a fused jumper wire between LH rear window control switch C701-2 , circuit CPW14 (VT/WH), harness side and C701-4 , circuit CPW22 (GN/VT), harness side; and a second fused jumper wire between LH rear window control switch C701-6 , circuit CPW21 (BN), harness side and C701-3 , circuit CPW15 (YE), harness side. The LH rear window should operate in the downward direction.
  
  Fig 6: Checking RH Front Window (Downward)
  Courtesy of FORD MOTOR CO.
Does the LH rear window operate correctly?
- Yes : If the LH rear window did not operate with the LH rear window control switch, INSTALL a new LH rear window control switch. REFER to WINDOW CONTROL SWITCH - REAR .
  TEST the system for normal operation.
  
  If the LH rear window did operate with the LH rear window control switch, but not with the LH front window control switch, INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH - FRONT . TEST the system for normal operation.
- No : GO to E6 .

E6 CHECK THE POWER WINDOW MOTOR CIRCUITS FOR AN OPEN

Ignition OFF.
Disconnect: LH Rear Power Window Motor C726 (Super Cab) or C703 (Super Crew).

For Super Cab, measure the resistance between LH rear window control switch C701 , harness side and LH rear power window motor C726 , harness side using the following chart:

LH Rear Window Control Switch	Circuit	LH Rear Power Window Motor
C701-6	CPW21 (BN)	C726-1
C701-4	CPW22 (GN/VT)	C726-2

Fig 7: Measuring Resistance Between LH Rear Window Control Switch C701 And LH Rear Window Motor C726

Courtesy of FORD MOTOR CO.

For Super Crew, measure the resistance between LH rear window control switch C701 , harness side and LH rear power window motor C703 , harness side using the following chart:

LH Rear Window Control Switch	Circuit	LH Rear Power Window Motor
C701-6	CPW21 (BN)	C703-1
C701-4	CPW22 (GN/VT)	C703-2

Fig 8: Measuring Resistance Between LH Rear Window Control Switch C701 And LH Rear Power Window Motor C703

Courtesy of FORD MOTOR CO.

Are the resistances less than 5 ohms?

Yes : INSTALL a new LH rear power window motor. REFER to WINDOW REGULATOR MOTOR . TEST the system for normal operation.
No : REPAIR the circuit(s). TEST the system for normal operation.