2006 jeep liberty 3.7cant retreive errror codes. mechanic cant get into it with diagnostic tool

Asked by rwms498 Sep 06, 2013 at 05:13 PM about the 2006 Jeep Liberty Limited 4WD

Question type: Maintenance & Repair

my mechanic cant get into the computer with code reader. he has used two readers and cant get in. any solution?

2 Answers
20,115

thejeepdoctor answered 11 years ago

these use a CAN bus system. your code reader is probably too old.autozone can prob. read it, or dealer.

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670

Dale answered 5 years ago

Also check your battery and it's connections. a bad battery will mess with a code reader and could have been the cause of the check engine light!

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