Pinpoint Test D: A Single Power Window Is Inoperative - LH (Left-Hand) Front

Refer to POWER WINDOWS for schematic and connector information.
Normal Operation and Fault Conditions

REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open Driver Window - System Operation and Component Description .

Possible Sources
- Wiring, terminals or connectors
- Master window control switch
- LH front window regulator motor

D1 CHECK THE POWER WINDOW UPWARD AND/OR DOWNWARD OPERATION

Ignition OFF.

Disconnect: Master Window Control Switch C504B.

Ignition ON.

To check downward window operation, connect fused jumper wires:

Positive Lead	Measurement / Action	Negative Lead
C504B-6	Courtesy of FORD MOTOR COMPANY	C504B-4
C504B-3	Courtesy of FORD MOTOR COMPANY	C504B-2

To check upward window operation, connect fused jumper wires:

Positive Lead	Measurement / Action	Negative Lead
C504B-6	Courtesy of FORD MOTOR COMPANY	C504B-3
C504B-4	Courtesy of FORD MOTOR COMPANY	C504B-2

Does the LH front window move up and/or down?

Yes	REMOVE the jumper wires. INSTALL a new master window control switch. REFER to: Front Door Window Control Switch .

No	REMOVE the jumper wires. GO to D2

D2 CHECK THE POWER WINDOW CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: LH Front Power Window Motor C524.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C504B-3	Courtesy of FORD MOTOR COMPANY	C524-2
C504B-4	Courtesy of FORD MOTOR COMPANY	C524-1

Are the resistances less than 3 ohms?

Yes

MAKE SURE there are no mechanical binding conditions preventing the glass mechanism from operating correctly. If a mechanical binding issue is found, REPAIR as necessary. If no mechanical binding condition exists, INSTALL a new LH front window regulator motor. REFER to: Front Door Window Regulator Motor .

No	REPAIR the circuit in question.