Anti-Theft after ECM Replacement
#1
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Year: 1994
Model: Cherokee
Engine: 4.0L I6
Anti-Theft after ECM Replacement
Just replaced my ECM from a 1991 Jeep Cherokee Laredo 4.0L into MY 1994 Jeep Cherokee Sport 4.0L. Everything I have found on this site, and other sources, say that the modules are compatible.
Now cannot get started due to anti-theft immobilizer.... I have no idea how to begin to troubleshoot this. I only have the 1 original key, there is no chip on my key... Ive locked and unlocked both doors (opened and shut). Locked/unlocked tailgate also opened and shut several times.... opened and shut hood several times... is there a way around this?
HELP!
Now cannot get started due to anti-theft immobilizer.... I have no idea how to begin to troubleshoot this. I only have the 1 original key, there is no chip on my key... Ive locked and unlocked both doors (opened and shut). Locked/unlocked tailgate also opened and shut several times.... opened and shut hood several times... is there a way around this?
HELP!
#2
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Location: Chico,ca
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Year: 89
Model: Cherokee
Engine: 4.0
I have a trouble shooting chart here but I do not think I can get it to you,it is quite a long process. You can try to turn your key to acc 3 times and then leave it there,this starts the diagnostic process. your horn will sound twice or should.
The only other thing I can think of is,do you have an owners manual that may help or get a repair manual.
The only other thing I can think of is,do you have an owners manual that may help or get a repair manual.
#3
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Year: 1994
Model: Cherokee
Engine: 4.0L I6
Thanks Mixed 89... We ended up finding the exact replacement for my computer from another 94 and everything ended up working out.
Know anyone interested in an ECM from a 1991 Jeep Cherokee Laredo 4.0L PN# 56005 707?
Know anyone interested in an ECM from a 1991 Jeep Cherokee Laredo 4.0L PN# 56005 707?
#5
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Year: 1994
Model: Cherokee
Engine: 4.0L I6
Just thought I would give an update on something new I learned with the ECM. A friend of mine also had a problem with his ECM, we couldnt use my spare ECM since it had the anti-theft... went to the junkyard and pulled one from a 93 Manual Cherokee, and placed it in his 95 automatic cherokee and it worked fine... for ****s and giggle we swapped the one from my 94, and it worked as well... although his "broken" ecm worked in mine as well... so we think he had a loose connection for the ecm, and all the swapping fixed it... Just thought I would say that like we talked about before, that the ECM's are interchangeable, just have to match the anti-theft...
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