P1685 code fix

Asked by Aug 23, 2016 at 12:55 AM about the 2000 Jeep Grand Cherokee Laredo 4WD

Question type: General

I got 2000 jeep grand Cherokee with p1685
code, which you get by turning key off on 3
times look at odometer it will show code,take
both battery cables off zip tie together first 5
minutes or so put back on ,no key light starts
right up, it will reset the computer and may take
40 plus times to program back in just by
starting and driving but it works!!!!

1 Answer

109,695

This means that your jeep did not recognize the key that was placed in the ignition. This can happen for a few reasons. Trying to start the engine with a key that is not programed to your jeep or a key that does not have a transponder chip Trying to start the engine with more then one transponder key on the key ring. Failing transponder chip in the key. You may need a need Key...

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