Ford Mustang (1999-2004) Service Manual: Principles of Operation
Power Window Control
NOTE: Battery power and ground must be removed before disconnecting the GEM connectors to avoid setting false DTCs.
The driver power window one-touch down operation is controlled by the generic electronic module (GEM). This feature functions only when the ignition switch is in the RUN or ACCY positions. The GEM determines ignition switch position by monitoring the key-in ignition, RUN/ACCY and RUN/START circuits. The one-touch down operation is requested of the GEM by momentarily pressing the driver window regulator control switch DOWN for 62 ms to 320 ms. The GEM uses the initial voltage input from the down switch to begin the one-touch down operation. If the voltage input was less than 320 ms, the GEM will maintain the voltage supply to the motor down circuit. The GEM will maintain the operation until:
- seven seconds expires.
- motor stall is detected by monitoring the current draw.
- a voltage input is received by the GEM on either the up or down switch circuits.
The ground for one-touch down operation does not pass through the GEM. The ground is supplied through the driver window regulator control switch as with normal operation. If the GEM continues to see voltage on the down circuit for more than 320 ms after initial activation the GEM will not effect operation. The down circuit through the GEM is a direct connection to the motor in its normal state.
This allows the driver window regulator control switch to control the motor for normal operation.
The passenger window motors are hardwired directly to the window regulator control switches.
Glass, Frames and Mechanisms (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 100 , Power Windows for schematic and connector information. Refer to Wiring Diagrams Cell 56 , Rear Window Defrost for schematic and connector information. Specia ...Inspection and Verification
1. Verify the customer concern by operating the system. 2. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical P ...Other materials:
Fuel Charging Wiring Harness
Removal and Installation
WARNING: Do not smoke or carry lighted tobacco or open flame of any
type when
working on or near any fuel related components. Highly flammable mixtures are
always present
and may ignite. Failure to follow these instructions may resul ...
Auxiliary Power Points
WARNING: Do not plug optional electrical accessories into the
cigarette lighter socket (if equipped). Improper use of the lighter
can cause damage not covered by your warranty, and can result in fire
or serious injury.
Note: If used when the engine is not runn ...
Vehicle certification label
The National Highway Traffic Safety
Administration Regulations require
that a Safety Compliance Certification
Label be affixed to a vehicle and
prescribe where the Safety Compliance
Certification Label may be located.
The Safety Compliance Certification
Labe ...