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Feb 1, 2021 | 10:48 PM

#16

Roler

CF Veteran

Joined: Jan 2012

Posts: 3,170

Likes: 312

From: Australia

Year: 1997 (RHD)

Model: Cherokee (XJ)

Engine: 4.0 ltr

Quote:

Originally Posted by Lucas

Checked the ASD circuit and relay, and it all seems ok, I have continuity all the way to the PCM. Just in case, took the PCM out and took it to the lab to check, they will have an answer tomorow.

How did you check?

Feb 2, 2021 | 08:09 AM

#17

Lucas

Thread Starter

Newbie

Joined: Oct 2017

Posts: 15

Likes: 0

From: Texas

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Roler

How did you check?

Swaped the relay to the starter relay and gave it a go, just to try the relay, and it works the relay is ok. Then checked for continuity in all the terminals, and they seem ok. Im I doing it right? I tested the terminals and continuity on fuse F6 to ECM pins 9 and 51, and Fuse and Fuse F2 to ECM pin 51...

Last edited by Lucas; Feb 2, 2021 at 08:20 AM. Reason: spelling

Feb 2, 2021 | 12:08 PM

#18

boxburn

CF Veteran

Joined: Oct 2018

Posts: 1,577

Likes: 279

From: United Kingdom

Year: 1995 RHD

Model: Cherokee (XJ)

Engine: 4.0l

How about continuity between pins 9 and 51? There should be some resistance due to the relay but from what you've tested, I'd imagine this would also check out fine.

Fuse 2 - 30A and Fuse 14 - 20A. Check for equal voltage on both sides of each fuse. I've had a fuse look good but had a hairline fracture making bad contact.

Check ASD relay socket output pin to PCM pin 57 for continuity.