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.
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HOMESERVICE MANUALSFORD2018MUSTANG GT PREMIUM, 2D CONVERTIBLE, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEWINDOWSGLASS, FRAMES AND MECHANISMSDESCRIPTION AND OPERATIONGLASS, FRAMES AND MECHANISMS - SYSTEM OPERATION AND COMPONENT DESCRIPTIONNETWORK MESSAGE CHART - REAR WINDOW DEFROST
2018 Ford Mustang GT Premium, 2D Convertible, Automatic Trans
Network Message Chart - Rear Window Defrost
2018 Ford Mustang GT Premium, 2D Convertible, Automatic TransSECTION Network Message Chart - Rear Window Defrost
Front Controls Interface Module (FCIM) Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Climate control requests | APIM (if equipped with touchscreen) | The climate control requests message contains the rear window defrost request information. When the rear window defrost function is requested using voice command or the button is selected on the touchscreen, this input activates the rear window defrost system. |
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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.