Isuzu Ascender air conditioning and windows not working, possible electrical short issue on Isuzu Ascender

Submitted by tito7 · Jun 23, 2025
Published by RepairPal

Problem overview

Some Isuzu Ascender owners report experiencing issues with their air conditioning and windows not functioning, which may indicate an underlying electrical problem, potentially an electrical short. Common causes include refrigerant leaks that can lead to air conditioning malfunctions, electrical climate control issues affecting AC performance, and faults with the AC compressor. Additionally, drivers have noted problems with extreme temperature operation and inconsistent airflow in the air conditioning system. For window issues, owners often find that the same electrical problems may cause windows to get stuck or fail to operate correctly. It is recommended to check the fuse box under the back driver's side seat and inspect fuse 48 (125 amp) in the underhood fuse box to identify potential electrical issues. If an electrical short is suspected, seeking inspection from a qualified mechanic is advisable to diagnose and repair the problem promptly, ensuring the proper functioning of these essential systems.

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Isuzu Ascender vehicles with this problem

1 model year affected
Average mileage: 157,000 miles
(150,000 - 164,000)

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