BMW DTC P3425 – Cylinder 4 Deactivation/Intake Valve Control Circuit/Open
DTC P3425 meaning on BMW
The Diagnostic Trouble Code (DTC) P3425 for BMW indicates an issue with the Cylinder 4 Deactivation/Intake Valve Control Circuit being open. This means that there is a malfunction in the circuit that controls the deactivation of cylinder 4 or the intake valve in the engine.
BMW DTC P3425 symptoms
Symptoms of DTC P3425 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Engine running rough or misfiring
- Reduced engine performance
- Increased fuel consumption
BMW DTC P3425 causes
Common causes of DTC P3425 on a BMW include:
- Faulty intake valve control solenoid
- Wiring issues in the intake valve control circuit
- Defective engine control module (ECM)
- Mechanical issues with the intake valve
BMW DTC P3425 seriousness
DTC P3425 should be addressed promptly as it can lead to engine performance issues and potentially cause damage to other components if left unresolved. Ignoring this code may result in further engine problems and decreased fuel efficiency.
How to diagnose DTC P3425 on BMW
To diagnose DTC P3425 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the intake valve control solenoid and wiring for any visible damage
- Perform a continuity test on the intake valve control circuit
- Check the engine control module for any stored codes related to the intake valve
How to fix DTC P3425 on BMW
To fix DTC P3425 on a BMW, you can try the following solutions:
- Replace the faulty intake valve control solenoid
- Repair any damaged wiring in the intake valve control circuit
- Reset the engine control module and clear the fault code
- If necessary, replace the intake valve or address any mechanical issues
How to erase DTC P3425 on BMW
To erase DTC P3425 on a BMW, you can use a diagnostic scanner to clear the fault code from the engine control module’s memory. After fixing the underlying issue causing the fault code, you can reset the code to turn off the Check Engine Light.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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