I have a 2001 Jeep Cherokee and all the needles on the gauges start flopping up and down and in the odometer space it said NO BUS what does this mean

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Asked by juju67 Jul 30, 2017 at 09:58 PM about the 2001 Jeep Cherokee Limited 2-Door RWD

Question type: Maintenance & Repair

I have a 2001 Jeep Cherokee and all the needles on the gauges start flopping
up and down and in the odometer space it said NO BUS what does this mean

7 Answers

It means the dash cluster has lost communication with the ECU.

1 people found this helpful.
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I am not a car person so can you explain a little more about what this ECU is

230

An engine control unit (ECU), also commonly called an engine control module (ECM), is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. If the gauge fluctuation occurs it's usually a voltage drop from a weak or intermittent connection. Check your connections from gauges (cluster) to right behind it and the ground wire(s) to dashboard. Hopefully this is the problem. Good Luck.

1 people found this helpful.
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we have done all the checking and now when the head lights are off the turn singles wont work, would this be caused if the headlight switch is bad

2 people found this helpful.

I'm with the same problem, I have a JEEP XJ 2.5 TD 33 "12.5, I live in Brazil. I'm immobilized due to the" NO BUSS "sign. I tried everything already. Now I'm going to try to recode the module. I beg for information. My module is German BOSH, my mobilizer is Mexican and the electric module is Canada. I'm desperate and without a car so far. HELP antonioecocerrado@gmail.com watts app +55 062 98160 7708

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I had this and solved it. This was about 5 years ago, so I hope I remember. NO BUSS symptom. Under the dash there is a fairly large multiple-wire connector that connects all the dash electrics to the car. Disconnect it and clean it VERY thoroughly using Contact Cleaner. Some say apply dielectric grease on the contacts. I did not do that. Re-connect and ti should be ok. Mine was.

2 people found this helpful.

Check your battery cables and battery. This happened to me on the start of a trip and my guages were all going crazy. Got new battery and cables and it was fine

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