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The "bus" is the communication system that the computers use to talk to each other. Any computer, wiring, or connections can cause this. You need a scan tool to diagnose.

"no bus" means the PCM (computer or module) is not able to communicate. Could be something as simple as a fuse (.50) or as complicated as a bad PCM ($1000.00)


"NO BUS" means that the communication system between the computers has stopped working.


Hi I have a 2000 Ram 1500 that had the same problem. For me in the Electrical Power Distribution Center ( The fusebox located in the engine compartment ) I have one big connector with a screw down through it that loosens or tightens the connection. Well for some reason that connector wasn't making good contact with at least one or 2 of the pins. I took that off, cleaned it up, and put it back on and everything worked fine. I'm going to clean it better with contact cleaner and coat it with some dielectric grease and see if it stands the test of time. From what I've gathered from many peoples posts is that this specific problem generally seems to be some kind of electrical contact problem and not the Computer or any other major part. someone.

Answer , I had the same "no bus" all gauges dead on my 2000 ram 1500. after looking at all the different answer posted I tried all of them and the one that worked. Was disconnecting the main plug held down by a screw in the fuse box on the engine compartment. I disconnected, blew the plug and the connect with compressed air, plug it back in tighten the screw and my truck is fine again. Everything works as it should.Answer

My father in law just had this problem and discovered, with the help of our local mechanic, that there was a short (or a loose connection) in the steering column, possibly caused by the fact that my father in law adjusts the steering wheel every time he gets in or out of the truck. The wires in the steering column are bound quite tightly, and do not allow for the vertical movement of the steering column. Total cost of the repair was $60 cdn. and a case of beer.


your computer is dead.

a "bus" is what the main information transfer lines in a computer are called.

"no bus" means no information transfer.

that one is gonna be SPENDY. most likely a couple thousand dollars.


This does not have to be a computer problem. This can also indicate a loose fuse or a simple bad connection. The bus is simply the ground for the electrical devices in the vehicle. It's a fundamental rule: go for the simple stuff before you spend a pot of money on the complex.


Had a similar problem and the parking brake was the problem and needed adj-. A simple nudge until hearing the parking brake "click" was a quick temporary fix. Only difference was my truck would not start until this was done.

Make this simple for everyone NO BUS gauges not working is a AGGREGATING ASS PROBLEM. However when you fix it you'll kick your self for how easy it was and wont cost you but maybe 5.00. heres the basic your main fuse panel under the hood has a screw in it with a huge contact. that contact has gone bad/ dirty take out the screw blow out the contact with compressed air pack it with electrical grease put it back in put the screw in TIGHT HAND ONLY and watch all your gauges come back to life. I got a great mech here where i live and after 2 diff dealerships telling me buy a new cluster i knew someone was full of it. then one said my brain was dead . MINI NEWS FLASH IF YOUR BRAIN IN YOUR TRUCK IS DEAD YOUR TRUCK WILL NOT START! again very simple 30 mins fix had this problem off n on for 6 years in my 99 ram which i still have and drive on weekends mine is 1999 V-6 with a super chip i take out to joy ride. do what i said above an your problem will be solved. i haven't had another issue with mine in over 2 years and have gone about 14000 miles without gauges failing


For me on a 99 2500 dodge ram with NO BUSS

Dodge dealer had it 5 times & said it was fixed, would last from one week to about a month. Then they said I needed a new instrument cluster that they would sell me for $1200.00. I did not do that and I was going to fix it myself, it was the connectors on the back of the instrument panel. I took the instrument panel out then removed the wiring connectors from there holders in the back of the dash. Then I put the instrument panel back in on an angle so I could get my hand in behind it to hook up the connectors on the back of the instrument panel then pushed the instrument panel all the way in, put the screws in. I have had no trouble with it since.


I have a 2004 Dodge Ram 1500, and I have tried all of the above, mine reads "no bus" none of the gauges worked or the windshield wipers. I found my problem to be in the ignition switch, you just have to work with the key (jiggle it while still in the switch) a little bit and all the gauges will start working again. there are two parts to the switch the key part and the electrical part. all of the electrical for the gauges runs through the switch. It has just turned over 40,000 miles and the warrenty has ran out on it.


I have a 2000 Dodge Ram 1500 Sport. The power distribution connector is located under the dash next to the parking brake instead of the engine compartment. I cleaned the connector and it still didn't work but while working on it I wiggled some wires around it and my instrument cluster began working for a while. TurnS out that the bus wires to the fuse box were jammed in the parking brake lever. Cost to fix.......absolutely zip, nada nothing. Thanks for the tips.


your problem is coming from a bad connection in your fuse box there should be a big wire held by a screw ,clean the surface and retighten and everything should come alive,what happens is that you are loosing comunication with ecm,hope i=this helps,


I had the same problem , no gages on the Instrumnet panel worked and it said

"no bus " in the milage odometer area. After looking on here and seeing the answers I tried only one and it worked. In the main fuse box under the hood there is a fuse held down by 2 screws I simply unscrewed them and cleaned the contacts with a piece of sand paper and hooked them back up and Magically everything was working again after two weeks without anything working . So thanks to everyone that submits questions and answers because I am sure you all just saved me alot of money that I could not afford to spare right now , THANKS AGAIN ---KEN ( From Toledo , Ohio )


i had the same problem ive tried everything so far i replaced the computer the body control module the screw all the fuses and a shope has checked every inch of wires and still nothing the cluster some times when i turn the steering wheel back and forth it comes back but there is no bad wires that can be found does anybody have any other options


Same problem- Try any/all of these suggestions before taking your truck in. Mine was the screw down connector in the pdm by the battery. I just unscrewed it and blew it out. Everything works fine now! Thanks for the helpful suggestions.

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Q: What does no bus mean in the digital mileage odometer on a Dodge?
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