Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 Ford Mustang GT, 2D Hatchback, StandardFACTORY OEM SERVICE PROCEDURE
Mark VII
- Unplug connector from control assembly. Ground control assembly pin No. 4. Connect jumper wire between control assembly pins No. 2 and 3. See Figure .
- Using a fused jumper wire, apply 12 volts to pin No. 2. Indicator light should not come on. Apply 12 volts to pin No. 5. Rear window symbol on switch should come on.
- Momentarily press rocker switch to ON position. Indicator should come on and stay on after rocker switch returns to normal position.
- Indicator should go off only if switch is set to OFF position, jumper wire is removed from between pins No. 2 and 3 or approximately 10 minutes have elapsed. Replace control assembly if test results are not as specified.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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