Mazda MPV engine won't turn over after reversing cables, sunroof and radio not working after fuse replacement on Mazda MPV

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

Problem overview

Some Mazda MPV owners report experiencing issues such as engine failure to turn over after reversing jumper cables, along with non-functional sunroof and radio following fuse replacement. These problems often stem from blown fuses caused by incorrect cable connections, leading to various electrical malfunctions. Additionally, owners may face a significant battery drain when the vehicle is not running after such incidents. Other common issues include ignition key getting stuck, power seat failures, engine power loss, and rough shifting. Moreover, problems like cooling fan module failure, ignition coil failure, and engine starting issues on inclined surfaces have also been reported. Damaged electronic components, including the radio and onboard computer, can result from improper jumper cable connections, necessitating a thorough check of the fuse box. It is crucial for owners to seek professional help if unsure about the root cause of these electrical problems, as rewiring without proper understanding may lead to further damage. To address these issues, it is recommended to check for additional blown fuses, consider consulting an auto electrician for diagnosis, and ensure the battery is in good condition to support the vehicle's electrical systems.

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