Question about 1996 Jeep Grand Cherokee
More computers are replaced every day than are necessary. That said, they can fail.
Your shop needs to do testing beginning at the harness connections on the computer. pins need to be tested to make sure that there is both power and ground present at the appropriate pins. All fuses need to be tested as well as the ignition switch and connections under the power distribution center. Generally, relays are controlled by the computer, not the other way around. Grounding is important....there are two major ground points and about four more smaller ones that all need to be clean and secure.
The computer itself is very accessible and takes ten minutes to replace. there are many available in wrecks. As they do not have a high failure rate, it's a good bet that one you get that way is good, providing that during the accident, the electrical system was not compromised causing shorting. (best units come from vehicles that had mechanical problems)
If you are dealing with a good reliable shop, they will know what to do.
Posted on May 28, 2010
I replaced my crank shaft sensor on the bell housing,started up,1995 4.0 $80.00 diy
Posted on Jun 05, 2010
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Posted on Jan 02, 2017
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