Xj dead syndrome! Help?
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Joined: Sep 2009
Posts: 139
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From: NJ
Year: 2000
Model: Cherokee
Engine: I6 4.0
My Jeep is d-e-a-d.
It died in the road a week ago and everything shut off. Now, I would usually start with the batt and cables and follow the usual problems from there but I have literally tried EVERYTHING. When I turn the Key, nothing happens. No Instrument Panel or cranking. The only thing that works is the door chime when the key is in and the interior/exterior lights.
Very weird. I checked and replaced the computer with a matching module. Still nothing... Power goes to and from PCM. Power goes to starter, alt and everything is grounded including batt and block. All the grounds I can find are cleaned and good to go.
-New CPS
-Battery tested ok.
-Alt tested ok.
-Starter ok. (I bypassed the cables and it cranks but no start)
-Batt terminal New and cleaned. Cables test ok.
-All the fuses I could physically see and check are ok. Unless there is a secret fuse block somewhere...
-The instrument cluster doesn't work so no engine light or codes. Not even a "no bus" like Ive had before and fixed.
-Neutral safety switch (NSS) cleaned and greased.
-On that note, every connection I took off, I put on with di-electric grease.

Help me please?
Ive done a lot more but i cant think right now. Very frustrated.
It died in the road a week ago and everything shut off. Now, I would usually start with the batt and cables and follow the usual problems from there but I have literally tried EVERYTHING. When I turn the Key, nothing happens. No Instrument Panel or cranking. The only thing that works is the door chime when the key is in and the interior/exterior lights.
Very weird. I checked and replaced the computer with a matching module. Still nothing... Power goes to and from PCM. Power goes to starter, alt and everything is grounded including batt and block. All the grounds I can find are cleaned and good to go.
-New CPS
-Battery tested ok.
-Alt tested ok.
-Starter ok. (I bypassed the cables and it cranks but no start)
-Batt terminal New and cleaned. Cables test ok.
-All the fuses I could physically see and check are ok. Unless there is a secret fuse block somewhere...
-The instrument cluster doesn't work so no engine light or codes. Not even a "no bus" like Ive had before and fixed.
-Neutral safety switch (NSS) cleaned and greased.
-On that note, every connection I took off, I put on with di-electric grease.

Help me please?
Ive done a lot more but i cant think right now. Very frustrated.
Last edited by Ramac; Sep 11, 2012 at 12:30 PM.
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