Does anyone know where the ECM is located on the 95 XJS.. 6 CYL Thanks for any help..

 

behind a panel in the passenger foot well, right ahead of the door.

 

Thanks..

 

Does it have to be taken out to be reporgrammed..or can they reporgram it thru the OBD connector..?

 

Never heard of anyone reprogramming the AJ16 ECU. Would love more info on that, if you can share.

Anything I've needed to reset on the ECU, such as base idle, TPS position, etc is done through the OBD2 port under the drivers side dash.

 

Your talking about the OBD Dianostic scanner caonnector right..? Have no Idea how to do that..when I scan there is NO DTCS detected..?

 

I don't understand what it is you're trying to do.

are you trying to read trouble codes? Do you have the check engine light on?

 

When I start it up cold it runs just fine. Then I shut it noff. Then if I restart it immediately the Idle immediately goes up to between 1300 and 1500 rpm and will not come down. I've already cleaned the air cleaner, the throttle body and MAF sensor. I've replaced the Idle Control valve.

I've been told by people on here that the Base Idle needs to be reset and the only way you can do that is have the ECM reprogrammed.

 

Ahh. Only someone with Jaguar specific software can do that. It is done through the OBD2 port.

unless you have some expensive equipment, you will not be able to do it yourself.

 

In order to reset the Base Idle adaptions, you need a very specific tool which is the old Jaguar programming device, the PDU using the WDS software, in working condition (unobtainium).
Maybe a more recent genuine VCM device using the IDS software may be used but I am not aware if this was ever tried successfully.
Anything else will probably fail.

 

Glad it's thru the OBD2 Port instead of having to pull out the ecm. Wonder how long it takes to reprogram it..?

 

May take 4ever if you don't have the tool

 

Not long. Much less than the 1 hour shop time you'll get charged.

i imagine it's simply navigating some menus and pressing the right button? I don't think there are any values for the mechanic to input.