Pinpoint Test D: A Single Power Window Is Inoperative - LH or RH Rear: Testing
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
- D1 CHECK THE VOLTAGE TO THE LH REAR OR RH REAR WINDOW CONTROL SWITCH
- Disconnect: Inoperative Rear Window Control Switch C701 or C801.
- Key in ON position.
- Measure the voltage between the inoperative rear window connector and ground:
- For the RH rear window control switch, measure the voltage between RH rear window control switch C801-5, circuit 170 (RD/LB), harness side and ground.
- For the LH rear window control switch, measure the voltage between C701-5, circuit 170 (RD/LB), harness side and ground.
- Is the voltage greater than 10 volts?
NOTE: Set the window lock switch to the unlock position.- Yes : GO to D2.
- No : REPAIR the circuit. TEST the system for normal operation.
- D2 CHECK THE GROUNDS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH
- Key in OFF position.
- Measure the resistance between the inoperative window control switch and ground:
- For the RH rear window control switch, measure the resistance between RH rear window control switch C801-1, circuit 2013 (YE/BK), harness side and ground; and between RH rear window control switch C801-6, circuit 2012 (RD/BK), harness side and ground.
- For the LH rear window control switch, measure the resistance between LH rear window control switch C701-1, circuit 2015 (GY/BK), harness side and ground; and between LH rear window control switch C701-6, circuit 2014 (YE/LB), harness side and ground.
- Are the resistances less than 5 ohms?
- Yes : GO to D4.
- No : GO to D3.
- D3 CHECK THE CIRCUITS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH FOR AN OPEN
- Key in OFF position.
- Disconnect: LH Front Window Control Switch C504a.
- For an inoperative LH rear power window, measure the resistance between LH front window control switch C504a-2, circuit 2014 (YE/LB) and LH rear window control switch C701-6, circuit 2014 (YE/LB), harness side; and between LH front window control switch C504a-6, circuit 2015 (GY/BK) and LH rear window control switch C701-1, circuit 2015 (GY/BK) harness side.
- For an inoperative RH rear power window, measure the resistance between LH front window control switch C504a-3, circuit 2012 (RD/BK) and RH window control switch C701-6, circuit 2012 (RD/BK), harness side; and between front window control switch C504a-6, circuit 2013 (YE/BK) and RH rear window control switch C801-1, circuit 2013 (YE/BK) harness side.
- 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) for an open. TEST the system for normal operation.
- D4 CHECK THE INOPERATIVE WINDOW CONTROL SWITCH
- Connect: LH Front Window Control Switch C504a.
- Key in ON position.
- For an inoperative LH rear window, connect a fused jumper wire between LH rear window control switch C701-1, circuit 2015 (GY/BK), harness side and LH rear window control switch C701-4, circuit 882 (BN/YE), harness side; and between LH rear window control switch C701-3, circuit 885 (YE/LB), harness side and LH rear window control switch C701-5, circuit 170 (RD/LB), harness side. The LH rear window should operate in the downward direction.
- For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-1, circuit 2013 (YE/BK), harness side and RH rear window control switch C801-4, circuit 884 (YE/BK), harness side; and between RH rear window control switch C801-5, circuit 881 (BN), harness side and RH rear window control switch C801-5, circuit 170 (RD/LB), harness side. The RH rear window should operate in the downward direction.
- For an inoperative LH rear window, connect a fused jumper wire between inoperative LH rear window control switch C701-3, circuit 885 (YE/LB), harness side and LH rear window control switch C701-6, circuit 2014 (YE/LB), harness side; and between LH rear window control switch C701-4, circuit 884 (YE/BK), harness side and LH rear window control switch C701-5, circuit 170 (RD/LB), harness side. The LH rear window should operate in the upward direction.
- For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-3, circuit 881 (BN), harness side and RH rear window control switch C801-6, circuit 2012 (RD/BK), harness side; and between RH rear window control switch C801-4, circuit 882 (BN/YE), harness side and RH rear window control switch C801-5, circuit 170 (RD/LB), harness side. The RH rear window should operate in the upward direction.
- Did the inoperative window operate correctly?
- Yes : INSTALL a new LH or RH rear window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
- No : GO to D5.
- D5 CHECK THE POWER WINDOW MOTOR CIRCUITS
- Key in OFF position.
- Disconnect: Inoperative Rear Window Motor C703 (LH) or C803 (RH).
- For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-3, circuit 885 (YE/LB), harness side and LH rear window motor C703-1, circuit 885 (YE/LB), harness side.
- For an inoperative RH rear window, measure the resistance between RH rear window control switch C801-3, circuit 881 (BN), harness side and RH rear window motor C803-1, circuit 881 (BN), harness side.
- For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-4, circuit 884 (YE/BK), harness side and LH rear window motor C703-1, circuit 884 (YE/BK), harness side.
- For an inoperative RH rear window, measure the resistance between RH rear window control switch C801-4, circuit 882 (BN/YE), harness side and RH rear window motor C703-2, circuit 882 (BN/YE), harness side.
- Are the resistances less than 5 ohms?
- Yes : INSTALL a new LH or RH rear window motor. REFER to WINDOW REGULATOR MOTOR . TEST the system for normal operation.
- No : REPAIR the circuit. TEST the system for normal operation.