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Jeep Cherokee Forum (https://www.cherokeeforum.com/)
-   Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here (https://www.cherokeeforum.com/f2/)
-   -   voltage read 19 volts (https://www.cherokeeforum.com/f2/voltage-read-19-volts-209586/)

CLSegraves1 Mar 24, 2019 12:38 PM
Quote:
Originally Posted by Dave51 (Post 3548228)
I also had a situation where the master door lock in the XJ would only work when it was cold (HAH?) Turned out there were several broken soldered connections in the passenger side circuit board.

Sometimes things are just weird....
I had similar on the driver's side. One of the windows wouldn't roll down at times. The solder that Jeep used must be garbage.

Phil2000XJ Jun 2, 2021 07:35 PM
Solved the 19 volt problem
 
https://cimg3.ibsrv.net/gimg/www.che...fc9a699c8.jpeg
On both my son’s 1999 XJ and my 2000 XJ all kinds of “intermittent” electrical problems were popping up. They all seemed ground related but not related to each other. We final figured out that the ECM (mounted to the fender by the air filter box) was grounded by one of the mounting screws and that screw had come loose. Tightened the mounting screw and fixed all the electrical problems just like that.

CLSegraves1 Jun 2, 2021 08:55 PM
Quote:
Originally Posted by Phil2000XJ (Post 3647871)
https://cimg3.ibsrv.net/gimg/www.che...fc9a699c8.jpeg
On both my son’s 1999 XJ and my 2000 XJ all kinds of “intermittent” electrical problems were popping up. They all seemed ground related but not related to each other. We final figured out that the ECM (mounted to the fender by the air filter box) was grounded by one of the mounting screws and that screw had come loose. Tightened the mounting screw and fixed all the electrical problems just like that.

Thanks for the post! I'll give it a try.

BlueRidgeMark Jun 2, 2021 10:15 PM
That's not where the ECM grounds. See my sig, #1, for a link to the ground locations.

Phil2000XJ Jun 3, 2021 11:32 AM
Quote:
Originally Posted by BlueRidgeMark (Post 3647893)
That's not where the ECM grounds. See my sig, #1, for a link to the ground locations.
That’s fine but the ECM does not work properly if the mounting screws are loose.

BlueRidgeMark Jun 3, 2021 10:48 PM
Suit yourself.


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