What does no Bus mean on a 2000 Dodge 2500?

“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.

What does it mean when my truck says no Bus?

check all grounds and sensor plugs. “No Bus” means the CCD communication bus is down. This “bus” is the 2 wire communication network that all the computers share information on. Your instrument cluster isn’t gettin any info over the bus that’s why you get the ‘no bus’ message and none of your gauges work.

What does no Bus mean in a Dodge?

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 a 1999 Dodge Dakota?

no communication

How do you test a PCM on a Dodge?

How to Test the PCM on a Dodge

Prepare some important materials before you check your Dodge’s PCM.
Place the coding resources in your Dodge’s navigation seat.
Locate your Dodge’s computer outlet beneath the dashboard.
Connect your OBD-II scanner to your Dodge’s computer outlet.
Look at your device’s display screen.

How do you reset a PCM on a Dodge?

RE: correct way to reset computer? Pull PCM fuse, turn and hold key to run until you hear two dings. turn off and put fuse back in. ^Exactly!

How do you reset a PCM?

How Can I Reset the PCM on My Car?

Open the hood of the vehicle.
Disconnect the negative battery cable from the battery. Use a wrench to loosen the lock nut, and pull the cable off. This cuts the power to the PCM. Wait for five minutes.

Does ECU control fuel pump?

Electronic Control Unit (ECU) It uses engine RPM and signals from different sensors to meter the fuel. The ECU often controls other functions like the fuel pump and ignition timing.