Ford Mustang Service Manual: Component Tests
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.
Inspection and Verification
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-touc ...
Heated Window Grid Wire Repair
Glass, Frames and Mechanisms (Description and Operation)
Component Location
Windshield Glass
The windshield exterior mouldings are installed with the windshield
glass. The windshield ext ...
Other materials:
Steering System (Diagnosis and Testing)
Steering System (Description and Operation)
The steering system has a typical rack-and-pinion design consisting of the
following:
Steering System Components - 3.8L Engine (CII Power Steering
Pump)
Steering System Components - 4.6L Engine (CIII Pow ...
Weld Nut Repair - Missing Weld Nut,
Restraints Control
Module (RCM)
Air Bag Supplemental Restraint System (SRS) (Description and Operation)
The air bag supplemental restraint system (SRS) is designed to provide
increased collision protection
for front seat occupants in addition to that provided by the three-point safety
belt ...
Piston Inspection
Engine (Diagnosis and Testing)
Special Tool(s)
Commercially Available
Leakdown Tester
Quick Disconnect Compression
Tester
134-R0212 or equivalent
Dial Indicator Gauge Adapter
303-007 (TOOL-6565-AB) or
equivalent
Di ...