sunsetxj

Hi guys!
Alright so I have a 2000 xj and fuse 22 which goes to both the pcm as well as the fuel pump, my issue is that fuse 22 is drawing 80 mah at all times, the battery will go dead within 3 days, has a new pcm, new alternator, new fuel pump/assembly.
Anyone have an idea? I keep throwing new parts at it and it's not fixed,
It has a stereo in it and had an amp but I had removed it.

lawsoncl

Your meter is showing 800 mA.

Are you looking at fuse 22 in the PDC or the fusebox?
https://www.cherokeeforum.com/how-to...diagram-398208

sunsetxj

Underwood fuse block/pdc

BlueRidgeMark

Under hood is the PDC (Power Distribution Center).

I'm glad Lawson caught that. When I read your post, I thought there's no way 80ma is draining your battery that fast.

Yeah, but 800 ma will do you in.

Now to find out who the culprit is.

sunsetxj

So I've went through his process and it was fuse 22 in the pdc

lawsoncl

Does it go away if you pull the fuel pump relay?

sunsetxj

No it doesnt

lawsoncl

So, I'm confused then. Fuse 22 feeds the fuel pump relay and pin 22 on the C1 connector to the PCM, labelled B+. You pulled the relay, and I'm skeptical that the PCM is drawing 800 mA with the ignition off. Unplug the PCM and see what happens?

sunsetxj

It still showed a draw, am I looking in the wrong place? I'm just as confused that fuse 22 is always drawing that much power. I appreciate the help!

Dave51

Maybe. According to the schematic, Fuse 22 should be hot. In the image you've posted you've connected to B-. If you were looking at it that way you should have been connecting across Fuse 22.

To be clear, did you check for parasitic draw according to the video? How many mA did you have before/after pulling Fuse 22? Before/after pulling Fuel Pump relay?

Dave51

Could be a bad wire, but seems to me you'd blow Fuse 22 instead of having a PD.

Looking forward to solution!

sunsetxj

Alright so i used the ground cable to test like in the video, it's at 800 mah drops to zero as soon as I pull fuse 22,pulled the fuel relay and no change, still pull in 800 mah

lawsoncl

If you wait a minute, does that 800 mA drop back down? Some things like the radio and some computers will draw some current when they're initially connected and then drop back down.

Dave51

See what happens when you disconnect C107:

sunsetxj

Just be sure is this c107?