BMW DTC P3433 – Cylinder 5 Deactivation/Intake Valve Control Circuit/Open
DTC P3433 meaning on BMW
DTC P3433 on a BMW indicates an issue with the Cylinder 5 Deactivation/Intake Valve Control Circuit being open. This means that there is a malfunction in the circuit that controls the deactivation of cylinder 5 or the intake valve.
BMW DTC P3433 symptoms
Symptoms of DTC P3433 on a BMW may include rough idling, reduced engine performance, misfires, and potentially an illuminated check engine light on the dashboard.
BMW DTC P3433 causes
The causes of DTC P3433 on a BMW can vary, but common reasons include a faulty intake valve control solenoid, wiring issues in the control circuit, or a malfunction in the cylinder deactivation system.
BMW DTC P3433 seriousness
DTC P3433 should be taken seriously as it can lead to poor engine performance and potentially cause damage to the engine if left unresolved. It is recommended to address this issue promptly.
How to diagnose DTC P3433 on BMW
To diagnose DTC P3433 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and then perform a visual inspection of the intake valve control circuit and related components. Testing the intake valve control solenoid and checking for any wiring issues would be part of the diagnostic process.
How to fix DTC P3433 on BMW
Fixing DTC P3433 on a BMW may involve replacing the faulty intake valve control solenoid, repairing any damaged wiring in the control circuit, or addressing any issues with the cylinder deactivation system. It is recommended to follow the manufacturer’s repair procedures and use quality replacement parts.
How to erase DTC P3433 on BMW
Once the underlying issue causing DTC P3433 on a BMW has been fixed, the fault codes can be cleared using a diagnostic scanner. This will erase the DTC P3433 code from the vehicle’s memory and 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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.