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Cadillac Seville Problems

Updated PROM Chip Available for Powertrain Control Module on Cadillac Seville

Problem Description and Possible Solution

An updated PROM (Programmable Read Only Memory) chip may be available for the powertrain control module (PCM). Check with your dealer.

(4 people reported this problem)

Cadillac Seville Vehicles With This Problem

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Average mileage: (–)
4 model years affected: 1990, 1991, 1992, 1993
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