pcm ecu
03-11-2011, 05:40 PM
#1
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Year: 1999 limited se
Model: Cherokee
Engine: 6 cyl inline 4.0
pcm ecu
was wondering what does the pcm ecu do exactly???
and if it has anything to do with the cruise control,,,cause its nt workin n someone suggested it might be the pcm n i just wanted to know if its true ,,,,
hoses are good new clock spring n cant find out whats wrong,,.
thanx for ny help
1999 cherokee xj
and if it has anything to do with the cruise control,,,cause its nt workin n someone suggested it might be the pcm n i just wanted to know if its true ,,,,
hoses are good new clock spring n cant find out whats wrong,,.
thanx for ny help
1999 cherokee xj
03-11-2011, 06:31 PM
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Location: Fauquier County, Virginia
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Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
You Engine Control Module is what operates your XJ. It is the brain of your Jeep. It controls the fuel injection, spark timing, fuel levels, etc. Idk about ODD II XJ's, but I'm pretty sure that the ECM doesn't have any control over cruise in the OBD I's. It's vacuum controlled.
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