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What does it mean when the check engine light comes on for a 2003 Tahoe?
Wiki User
∙ 10y ago
The light is only a signal that some event has posted a Code in the vehicles computer storage. Until you read the code with a Scan Tool, you will not know what the Fault was.
Your Dealer, Mechanic, or an AutoZone Store will read the Code for you. The AutoZone will read it for FREE.
Wiki User
∙ 10y ago
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