The Check Engine Light may illuminate due to a failed catalytic converter on Isuzu Ascender

Submitted by Jim Taddei · May 29, 2025

Published by RepairPal

Problem overview

One or both catalytic converters may fail resulting in illumination of the Check Engine Light. Replacement of the failed catalytic converter will be necessary to correct this condition.

4 people reported this problem

1 comment

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Isuzu Ascender vehicles with this problem

1 model year affected

2003 Isuzu Ascender

Average mileage: 210,500 miles

(210,500 - 210,500)

Repairs related to this problem

Catalytic Converter Replacement

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