check enging light with not code
my check engine light comes on and I do the "3 key" check. (2007 Wrangler) It goes through the check and the Odometer displays "Done" (no code). I have reset the engine warning light by disconnecting the battery. The engine light goes off but comes back on every couple of weeks. Never has a code.
Why would I continue to get the engine warning light without a code???
Why would I continue to get the engine warning light without a code???
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
First off, you are in the wrong forum. These forums are "platform specific" and this one is for the XJ Cherokee. You will need to post in a "Wrangler" forum.
As for determining what code, the key test doesn't work for your vintage. You will need to hook up either a scan tool or a code reader to the OBDII connector under the dash.
Some auto parts stores will do this for you (Autozone) and you can also buy a simple code reader very inexpensively. Beware though that getting the code is only job #1. Correctly interpreting that code and doing further testing to isolate the root cause is not always straight forward and can be tricky.
As for determining what code, the key test doesn't work for your vintage. You will need to hook up either a scan tool or a code reader to the OBDII connector under the dash.
Some auto parts stores will do this for you (Autozone) and you can also buy a simple code reader very inexpensively. Beware though that getting the code is only job #1. Correctly interpreting that code and doing further testing to isolate the root cause is not always straight forward and can be tricky.
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