Question about 1994 Jeep Grand Cherokee

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How to read the engine light codes?

My truck engine light goes on here and there, so it does not stays on! but I figure I should read to see if there is a message there for me. Could you please give details on how to do this?

Many thanks

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  • Jeep Master
  • 17,970 Answers

Initially what is needed is to determine the "code of failure", then know that it and afterwards make l intervention...

Extracting Fault Codes
(sample for an 1991 year; the procedure is the same for other years).

On Board Diagnotic Code Database
(select your type ODB by year's car)

Good luck!!!

Posted on Oct 27, 2008

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