Bad PCM Causes Engine performance issues. Engine misfiring or stalling and overall poor engine performance are common indications of problems with the engine control unit. Modern vehicles have various sensors that operate within a given range to ensure the intended functions of the engine.4 feb 2020
How do you know if your PCM module is bad?
- Your “check engine” light is on.
- Other warning lights may be on, including traction control and ABS.
- You lose fuel economy for no apparent reason.
- Your car stutters when starting, requires multiple attempts, or won't start at all.
- Stuttering or stalling during idling.
What does no bus mean on a 2001 Dodge 2500 Cummins?
"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.7 oct 2017
What does no bus mean on 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.