Pinpoint Test E: A Single Power Window Is Inoperative - RH Rear Window
Glass, Frames and Mechanisms
Pinpoint Tests
Pinpoint Test E: A Single Power Window is Inoperative - RH Rear Window
Refer to Wiring Diagram Set 100 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Power Windows for schematic and connector information. Diagrams By Number
Normal Operation
The RH rear window control switch receives power from the LH front window control switch through circuit CPW14 (VT/WH). The RH rear window control switch provides power to the RH rear window motor through circuit CPW23 (GY) and ground through circuit CPW24 (WH/VT) to operate the RH rear window down; and power through circuit CPW24 (WH/VT) and ground through circuit CPW23 (GY) to operate the RH rear window up.
When operating the RH rear window using the LH front window control switch, power is sent to the RH rear window control switch through circuit CPW17 (BN/GN) and ground through circuit CPW18 (GY/VT) to operate the RH rear window down; and power through circuit CPW18 (GY/VT) and ground through circuit CPW17 (BN/GN) to operate the RH rear window up.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- LH front window control switch
- RH rear window control switch
- RH rear window motor
PINPOINT TEST E: A SINGLE POWER WINDOW IS INOPERATIVE - RH REAR WINDOW
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E1 CHECK THE RH REAR WINDOW OPERATION FROM THE LH FRONT WINDOW CONTROL SWITCH
- Ignition ON.
- Operate the RH rear window from the LH front window control switch.
- Does the RH rear window operate from the LH front window control switch?
Yes
GO to E2.
No
GO to E3.
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E2 CHECK CIRCUIT CPW14 (VT/WH) FOR VOLTAGE
- Ignition OFF.
- Disconnect: RH Rear Window Control Switch C801.
- Ignition ON.
- Measure the voltage between RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
INSTALL a new RH rear window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
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E3 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR VOLTAGE AND GROUND
- Ignition OFF.
- Disconnect: RH Rear Window Motor C803.
- Ignition ON.
- Measure the voltage between RH rear window motor C803-2, circuit CPW23 (GY), harness side and RH rear window motor C803-1, circuit CPW24 (WH/VT), harness side while operating the RH rear window control switch in the down then up positions.
- Is the voltage greater than 10 volts in both switch directions?
Yes
INSTALL a new window regulator and motor. REFER to Window Regulator - Rear Door Window Regulator - Rear Door. TEST the system for normal operation.
No
GO to E4.
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E4 CHECK THE RH REAR WINDOW CONTROL SWITCH
- Ignition OFF.
- Disconnect: RH Rear Window Control Switch C801.
- Carry out the Window Control Switch component test on the RH rear window control switch.
- Did the RH rear window control switch pass the component test?
Yes
GO to E5.
No
INSTALL a new RH rear window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.
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E5 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR AN OPEN
- Measure the resistance between RH rear window control switch, harness side, and RH rear window motor, harness side using the following chart:
- Are the resistances less than 5 ohms?
Yes
GO to E6.
No
REPAIR the circuit. TEST the system for normal operation.
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E6 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR A SHORT TO GROUND
- Measure the resistance between RH rear window control switch C801-5, circuit CPW24 (WH/VT), harness side and ground; and between RH rear window control switch C801-2, circuit CPW23 (GY), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes
GO to E7.
No
REPAIR the circuit(s) in question. TEST the system for normal operation.
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E7 CHECK CIRCUITS CPW17 (BN/GN) AND CPW18 (GY/VT) FOR AN OPEN
- Measure the resistance between LH front window control switch, harness side and RH rear window control switch, harness side using the following chart:
- Are the resistances less than 5 ohms?
Yes
GO to E8.
No
REPAIR the circuit. TEST the system for normal operation.
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E8 CHECK CIRCUITS CPW17 (BN/GN) AND CPW18 (GY/VT) FOR A SHORT TO GROUND
- Measure the resistance between RH rear window control switch C801-1, circuit CPW17 (BN/GN), harness side and ground; and between RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes
INSTALL a new LH front window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
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