P3400Średni
Problem z dezaktywacją cylindrów – Bank 1. Układ wyłączania cylindrów wykrył nieprawidłowość w obwodzie sterowania zaworami Bank 1.
Układ napędowy
Sprawdź szczegóły →P3225
ŚredniCylinder Deactivation System Error – Incorrect operation of the Variable Cylinder Management (VCM/AFM) system. The engine controller detected a fault in the solenoid valve circuit or deactivation mechanism.
OBD-II (EN): Cylinder Deactivation System Malfunction - Variable Cylinder Management (VCM/AFM) Circuit Fault
Code P3225 signals a fault in the cylinder deactivation system – a technology that shuts off some cylinders under low engine load to save fuel. The cause may be worn engine oil, a damaged solenoid valve, or a mechanical problem in the VCM system. We recommend a workshop visit for accurate diagnosis before the fault leads to more serious engine damage.
Symptoms
Increased fuel consumption, engine vibrations at low load, rough engine operation, MIL (Check Engine) light on, possible engine limp mode disabling cylinder deactivation.
Possible causes
• Fault in the cylinder deactivation solenoid valve (short circuit, open circuit, or mechanical blockage) • Contaminated or degraded engine oil causing incorrect hydraulic pressure in the VCM system • Clogged oil passages leading to the deactivation mechanism • Damaged valve lifter or hydraulic tappet in the deactivated cylinder • Damage to the solenoid valve wiring harness or connector (corrosion, chafed insulation)
Affected systems
Układ dezaktywacji cylindrów (VCM/AFM)Układ smarowania / ciśnienia olejuElektrozawory sterowania zaworamiSterownik silnika (ECM/PCM)
Related codes
P0300Wysoki
Wykryto losowe zapłony w wielu cylindrach
Układ napędowy
Sprawdź szczegóły →Suggested Hybspec services
Based on the systems affected by this code, we will most likely start with:
Does code P3225 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.