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DESCRIPTION AND OPERATION
Convertible Top
Rear Window Glass Assembly
The convertible top assembly is equipped with a rear window glass assembly. The rear window glass
assembly is permanently attached to the folding top rear window curtain and cannot be opened. The
rear window glass must be repaired separately.
Stay Pad
The stay pad is attached to the bows and is repaired as a component.
Hydraulic System
The convertible top hydraulic system is comprised of the lift cylinders, the motor, the connecting
hydraulic lines and a convertible top switch. The hydraulic system, except for the convertible top
switch, is removed as an assembly, but the components may be repaired separately.
SECTION 501-
18: Convertible Top 2003 Mustang Workshop Manual Item Part Number Description
1 7652500 Rear glass assembly
2 76533A00 Motor assembly
3 011702 Lift cylinder with hydraulic lines Klj . 1 ba
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Klj . 2 ba
22003 Mustang Workshop Manual
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DIAGNOSIS AND TESTING
Convertible Top
Refer to Wiring Diagrams Cell
103 , for schematic and connector information.
Principles of Operation
The convertible top will only operate with the parking brake engaged and the ignition switch in the RUN
position. When the parking brake is engaged, the raise and lower relay coils are grounded through the
parking brake switch. The convertible top switch supplies power to the raise or lower relay coil when
raise or lower is selected. This power energizes the coil causing the relay contacts to close which
supplies battery power to the convertible top motor/pump assembly. The normal state of the relay is
connected to ground. When the raise or lower relay is operating, the other relay remains in its normal
state supplying the motor/pump ground.
Convertible Top Adjustments
The convertible top adjustments must be made by a qualified technician.
Inspection and Verification 1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart.
SECTION 501-
18: Convertible Top 2003 Mustang Workshop Manual Special Tool(s)
73 III Automotive Meter
105-
R0057 or equivalent
Visual Inspection Chart Mechanical Electrical
z
Convertible top brackets and
frame
z Hydraulic motor and pump
z Hydraulic lift cylinders
z Door and quarter window glass
adjustment z
Central junction box (CJB) Fuse 20 (15A)
z Battery junction box (BJB) circuit breaker
CONV TOP (30A)
z Wiring harness
z Loose or corroded connections
z Raise or lower relays
z Parking brake switch
z Convertible top switch Klj . 1 ba
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