BMW DTC P1333 – Knock/Combustion Vibration Sensor 4 Circuit High
DTC P1333 meaning on BMW
The DTC P1333 for BMW refers to the Knock/Combustion Vibration Sensor 4 Circuit High. This diagnostic trouble code indicates that there is a high voltage condition detected in the circuit related to the Knock/Combustion Vibration Sensor 4.
BMW DTC P1333 symptoms
Symptoms of the DTC P1333 on a BMW may include engine knocking or pinging noises, reduced engine performance, rough idling, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1333 causes
The high voltage condition in the Knock/Combustion Vibration Sensor 4 circuit that triggers the DTC P1333 on a BMW can be caused by issues such as a faulty sensor, wiring problems, or a malfunction in the engine control module.
BMW DTC P1333 seriousness
While the DTC P1333 itself may not cause immediate harm to the vehicle, it can lead to poor engine performance and potentially affect fuel efficiency. Ignoring this issue may result in long-term engine damage.
How to diagnose DTC P1333 on BMW
To diagnose the DTC P1333 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and then perform a thorough inspection of the Knock/Combustion Vibration Sensor 4 circuit, including checking the sensor itself, the wiring, and connections for any signs of damage or corrosion.
How to fix DTC P1333 on BMW
Fixing the DTC P1333 on a BMW involves identifying and addressing the root cause of the high voltage condition in the Knock/Combustion Vibration Sensor 4 circuit. This may require replacing the sensor, repairing any damaged wiring, or reprogramming the engine control module.
How to erase DTC P1333 on BMW
Once the underlying issue causing the DTC P1333 on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and erase the DTC P1333 code from the vehicle’s memory.
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.