What is no bus error?

No Bus refers to the data bus by which the computer (ECM) in the vehicle communicate with each other and with the various components which they read and control. There could be a broken wire, a corroded or loose connection, or a bad signal from the computer (ECM) to a component.

How do you reset the codes on a Jeep TJ?

How to Clear Codes on Jeep Wrangler

1. Make sure the engine is not running and key is out of the ignition.
2. Disconnect the battery terminals.
3. Wait 5 minutes.
4. Reconnect battery terminals.
5. Insert and turn the ignition key to the run position without starting.
6. All error codes are cleared and CHECK ENGINE icon disappeared.

What does no bu5 mean on a Jeep Cherokee?

A no bus appears on the dash and the engine does NOT run. This is your problem. A good majority of times, it is a failed (shorted) crankshaft position sensor causing this. Theoretically, any 5 volt engine management sensor can short and cause this problem, but the crank sensor is the most suspect. Try this simple test.

What does no bus mean on a 2001 Dodge Dakota?

No Bus means no communication from the ECU to the instrument cluster. You must have disconnected something.

What does no bus on a Dodge mean?

“No bus” is your ECM telling that one of the other computers onboard doesn’t wanna talk to the ECM. This is “usually” a wiring/connector problem. Check you wiring/connections, especially under the drivers side kick panel.

How do I check my Jeep codes?

How to Check An Engine Code

1. Insert key into the ignition.
2. Turn to “ON” position without starting the Jeep.
3. Push the key in and turn it to “OFF” and then to “ON” three times, leaving it in the “ON” position.

What does no bus mean on dash?

If You see a no bus error message on the instrument cluster in Your Dodge Dakota that means that Your gauge cluster has lost communication with the ECU. When there is anything wrong with that communication system You will get an error message on Your dash that will let You know.

What does no bus mean on a 2000 Dodge Dakota?

If You see a no bus error message on the instrument cluster in Your Dodge Dakota that means that Your gauge cluster has lost communication with the ECU. The ECU communicates with instrument cluster via a system that is called CAN BUS. If it is loose at all then that would lead to a loss of communication.

What does no bus mean on dashboard?

What does no bus mean 2002 Dodge Ram 2500?

“no bus” means lost communication with the ECM. Pull your connections to your ECM, spray them down really good with electrical contact cleaner, lube em up with dielectric grease, and see what happens. If there is no change, then im sorry to say, but you will likely need a new ECM.