Ford Mustang electrical issues causing stereo malfunction, wipers stuck on, horn honking, and tire pressure sensor always on on Ford Mustang

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Ford Mustang owners report experiencing electrical issues such as stereo malfunctions, wipers getting stuck on, unexpected horn honking, and tire pressure sensors that remain illuminated. These problems may stem from a faulty radio unit or amplifier, with potential solutions including resetting the radio or checking for blown fuses. Stuck wipers could indicate issues with the wiper motor or damaged wiring, necessitating inspection of burnt wires near the motor. Unexpected horn honking may signal electrical system problems, prompting checks of the wiring harness behind the instrument cluster for damage. Additionally, a tire pressure sensor that stays on might be due to a faulty sensor or wiring, requiring replacement of the specific faulty component. In cases where multiple electrical issues arise, consulting a professional mechanic or Ford dealership is recommended for a thorough diagnosis and effective resolution.

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