What is a PCM fault?

What is a PCM fault?

The P0606 fault code means that there’s an error with your power control module (PCM). Your PCM is the computer inside your car that monitors all the vital systems. Basically, it’s the brain of your car. It also runs a self-check, to make sure the PCM itself is working correctly.

What causes P0606?

Code P0606 is triggered when there is a fault found in the processor internal to the Engine Control Module (ECM)/Powertrain Control Module (PCM). In most cases, it is a faulty ECM/PCM but you should always check powers and grounds to verify there isn’t a wiring problem before replacement of the control module.

How do you know if your PCM is bad?

What Are the Symptoms of a Faulty PCM?

1. Your “check engine” light is on.
2. Other warning lights may be on, including traction control and ABS.
3. You lose fuel economy for no apparent reason.
4. Your car stutters when starting, requires multiple attempts, or won’t start at all.
5. Stuttering or stalling during idling.

What is a PCM in a car?

The powertrain control module, aka PCM, is your vehicle’s brain. It manages the engine, transmission and other systems based on information it receives from various sensors around the vehicle.

How long do ecus last?

The engine control unit is a component that can last the lifetime of the vehicle, or develop issues after 100,000 miles.