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.
2004 Ford Mustang Mach 1, AutomaticFACTORY OEM SERVICE PROCEDURE
Remote Transmitter Programming
NOTE:
All remote transmitters must be programmed at the same time.
- The vehicle must be electronically unlocked before entering program mode (via remote transmitter, keyless entry keypad (if equipped) or door lock control switch while the driver door is open.
- Turn the key from OFF to RUN 8 times within 10 seconds, with the eighth turn ending in RUN. If the module has successfully entered program mode, it will lock and then unlock all doors.
- Within 20 seconds, press any button on a remote transmitter, and the doors will lock and then unlock to confirm that each remote transmitter has been programmed. Repeat this step for each remote transmitter.
- If the door locks do not respond for any remote transmitter, wait several seconds and press the button again. If the door locks still fail to respond, refer to INSPECTION AND VERIFICATIONΒ . Make sure that no more than the maximum number of remote transmitters are attempted to be programmed.
- Exiting the programming mode is accomplished if one of the following occurs:
- The key transitions to the OFF position.
- 20 seconds have passed since entering programming mode or since the last remote transmitter was programmed.
- The maximum number of remote transmitters have been programmed.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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