No bus won't start
Hi there:
The bus is the network the computers use to talk to each other. When it comes up in the mileage display this means that the network has shut down. You may have damaged wiring, a shorted cam or crank sensor, or you got a defective PCM.
Sometimes, the problem you are having is with a bad computer. Most likely this is being caused by a bad engine computer and will need to replace in order to solve this issue. The PCM is located in the engine compartment next to the air cleaner assembly.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
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SOURCE: electronic key on 2008 jeep
electronic key on 2008 jeep cherokee says key damaged or key not programmed. car won't start. some things work but radio won't come on. etc..
SOURCE: 1999 jeep cherokee
a bad crank or cam sensor can cause this as well as a bad computer...find a reputable dealer or garage to check it out for you
SOURCE: 2000 jeep grand cherokee gauge cluster is working
If it's just the Temp/ Fuel gauge,,, my money is on the instrument voltage regulator. (it governs the voltage to these gauges regardless of the incline (up/down for the fuel gauge) or the battery voltage 12.5 - 13.8 . Other than these it may be an earth connection problen (long shot) because the instrument panel relies on many many signal imputs. !
SOURCE: 2001 jeep cherokee cranks, no start, no bus
I just had the same problem of my 2001 jeep cherokee not starting with no gauges responding and a "no bus" reading. After reading the responses I changed out the CPS and my jeep now runs great! however, it was not as hard as I thought it would be. Very easy with 7/16 bit and a 10inch extender. In and out in less than 5 minutes. Finding it was the hardest part. Blends in with the bell housing. I did this from under the jeep with a good shop light. I paid about $80 for the part here in Atlanta, GA
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