P1685 code fix

Asked by PeteB3308 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!!!!

9 Answers

188,465

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...

33 people found this helpful.
100

So had mew key made and programmed and still having SKIM light issue. Any other ideas?

10 people found this helpful.
50

If it doesn't correct itself you may have to bring it to a person with a scanner that can reprogram keys for you

2 people found this helpful.
50

If it doesn't correct itself you may have to bring it to a person with a scanner to have them reprogram keys

3 people found this helpful.
130

have you checked the evic. if you have a overhead consul with the ignition of press and hold the c/t and reset buttons simultaneously and while holding them switch on the ignition. if you get a J1850 message your can bus has a fault causing the skim light to illuminate..

13 people found this helpful.
90

So far a temporary fix.. Disconnected battery and stood on brake for 1 1/2 minutes. reconnected and checked for error codes using 3 of and on on key not attempting to start. Error code P1685 gone. Started and drove around for 30 minutes just fine. Again, no error codes found usining 3 on/off key method. Error codes will be found on odometer and done at end.

9 people found this helpful.
30

I tied both battery cables together waited 5 mins and it crunk up and ran without shutting off after 2 seconds it also took the key light off from my dash the only problem is it runs like shit now it’s making a skipping sound like too much air is getting into my intake any ideas

3 people found this helpful.

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