Pinpoint Test E: A Single Power Window Is Inoperative - LH Rear
WARNING: This page is about a different car, the 2012 Ford Pickup. 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.
- 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.
- 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.
- 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 - 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.
- 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.
- 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.
- 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.
- Ignition ON.
- E6 CHECK THE POWER WINDOW MOTOR CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: LH Rear Power Window Motor C726 (SuperCab) or C703 (SuperCrew).
- For SuperCab, 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 - For SuperCrew, 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 - 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.