Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Rob1642 on June 18, 2011, 06:24:12 PM

Title: 1999 WJ Double whammy
Post by: Rob1642 on June 18, 2011, 06:24:12 PM

started the Jeep the other day to be greeted by a check engine light and aggressive gear changes.  Ran the fault codes and came up with P0523 and P0700.

as far as the 0523, am happy with fitting a new sensor as the wiring is fine.

with the 0700, I can't work out what gearbox I have fitted.  Automatic, that's obvious, but I can't get under the vehicle to check above the filter.

Can anyone give mee a steer in the right direction, and do I need to go direct to Jeep for the parts or are there suitable aftermarket ones?

Cheers

Title: Re: 1999 WJ Double whammy
Post by: Mike Pavelin on June 18, 2011, 06:30:47 PM

If you have a 4.0, it's a 42RE. If you have a 4.7, it's a 45RFE.

Title: Re: 1999 WJ Double whammy
Post by: Rob1642 on June 18, 2011, 06:54:51 PM

Cheers Mike, should have stated that it's a 4.7

Title: Re: 1999 WJ Double whammy
Post by: Mike Pavelin on June 18, 2011, 10:45:14 PM

You're barking up the wrong tree anyway. P0523 is an engine oil pressure sensor fault. P0700 alerts you that there is also a fault logged on the transmission control module, but you need a DRBIII scantool or something else that will do Chrysler transmission diagnostics to get into it further.

Title: Re: 1999 WJ Double whammy
Post by: Rob1642 on June 19, 2011, 09:35:32 AM

I'm happy that 0523 is the oil pressure sensor, that was the easy part to find out.  From what I can gather off http://www.wjjeeps.com/faultcodes.htm (http://www.wjjeeps.com/faultcodes.htm) it could possibly be the output speed sensor.  Apparently the input sensor was changed a couple of weeks before I bought the car, so I am going to pull both of them and do a resistance check.