Author Topic: Check engine light on, but no error code  (Read 5250 times)

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Offline sharpxmen

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Re: Check engine light on, but no error code
« Reply #15 on: March 23, 2012, 09:51:20 PM »
i thought with the OBDII you can read the codes even with an ipod, maybe that shop you took it initially didn't have the proper update for the Jeep. it should have come up with the key sequence though.
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Offline Danny in Galveston

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Re: Check engine light on, but no error code
« Reply #16 on: March 24, 2012, 07:54:54 AM »
From what the stealersh- I mean dealership said, non-electronic malfunctions will not be read on anything but the factory provided computor.  The shop I took it to, a large body shop-repair facility has a top-of-the-line scanner and it showed no faults.   The self-test on the 2001 Wrangler involves depressing the odometer button and turning the ignition switch on and it showed no stored faults.  BTW, the guy at the dealership had never heard of this self-test function on the vehicle.

SDWE61988

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Re: Check engine light on, but no error code
« Reply #17 on: March 28, 2012, 06:34:16 AM »
From what the stealersh- I mean dealership said, non-electronic malfunctions will not be read on anything but the factory provided computor.  The shop I took it to, a large body shop-repair facility has a top-of-the-line scanner and it showed no faults.   The self-test on the 2001 Wrangler involves depressing the odometer button and turning the ignition switch on and it showed no stored faults.  BTW, the guy at the dealership had never heard of this self-test function on the vehicle.

I have not personally heard of pressing the odometer method to pull the codes myself (I am not saying it is wrong or anything).   I have had 6 mopar vehicles in the last 15 years and always done the key cycling ( on-off-on-off-on) to obtain the code.  The older ones would flash the cel for the code and the newers ones would list the code on the odometer.  The self test function (on mopars) has been around for years though.  My brother, ( a dealer mechanic for nearly 20 years)showed it to me.