Pinpoint Test D: A Single Power Window Is Inoperative - Fusion, Milan, LH Front

Glass, Frames and Mechanisms

Pinpoint Tests

Pinpoint Test D: A Single Power Window is Inoperative - Fusion, Milan, LH Front

Refer to Wiring Diagram Set 100, Power Windows for schematic and connector information. Diagrams By Number

Normal Operation

Under normal operation, the LH front power window control switch receives power from the delay accessory relay through circuit CPW30 (GY/YE) and is grounded to chassis through circuit GD126 (BK/WH). When the LH front window control switch is operated in the UP position, the LH front window motor receives power through circuit CPW11 (BY/GY) and ground through circuit CPW10 (YE/VT). When the LH front window control switch is operated in the DOWN position, the LH front window motor receives power through circuit CPW10 (YE/VT) and ground through circuit CPW11 (BY/GY). The one-touch down feature is integral to the driver window control switch.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- LH front window motor
- LH front window control switch



PINPOINT TEST D: A SINGLE POWER WINDOW IS INOPERATIVE - FUSION, MILAN, LH FRONT

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D1 CHECK THE LH FRONT POWER WINDOW MOTOR


- Disconnect: LH Front Window Control Switch C537A and C537B.
- Ignition ON.
- Connect a fused jumper wire between LH front window control switch C537A-5, circuit CPW11 (BU/GY), harness side and LH front window control switch C537A-2, circuit CPW30 (GY/YE), harness side. Connect a second fused jumper wire between LH front window control switch C537A-1, circuit CPW10 (YE/VT) and LH front window control switch C537B-7, circuit GD126 (BK/WH). The LH front window should operate in the up direction.




- Connect a fused jumper wire between LH front window control switch C537A-1, circuit CPW10 (YE/VT), harness side and LH front window control switch C537A-2, circuit CPW30 (GY/YE), harness side. Connect a second fused jumper wire between LH front window control switch C537A-5, circuit CPW11 (BU/GY) and LH front window control switch C537B-7, circuit GD126 (BK/WH). The LH front window should operate in the down direction.




- Does the LH front window operate correctly?

Yes
INSTALL a new LH front window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.

No
GO to D2.

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D2 CHECK FOR OPEN IN CIRCUIT CPW10 (YE/VT) OR CPW11 (BU/GY)


- Ignition OFF.
- Disconnect: LH Front Window Motor C518.
- Measure the resistance between LH front window motor C518-1, circuit CPW11 (BU/GY), harness side and LH front window control switch C537A-5, circuit CPW11 (BU/GY), harness side; and between LH front window motor C518-2, circuit CPW10 (YE/VT), harness side and LH front window control switch C537A-1, circuit CPW10 (YE/VT), harness side.




- Are the resistances less than 5 ohms for both measurements?

Yes
INSTALL a new LH front window motor. REFER to Glass, Frames and Mechanisms - Exploded View, Front Door Glass, Frames and Mechanisms - Exploded View, Front Door and Window Regulator and Motor - Front Door Window Regulator and Motor - Front Door. TEST the system for normal operation.

No
REPAIR the circuit in question. TEST the system for normal operation.

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