BMW DTC P0379 – Timing Reference High Resolution Signal ‘B’ No Pulses
DTC P0379 meaning on BMW
DTC P0379 refers to the Timing Reference High Resolution Signal ‘B’ No Pulses error code on BMW vehicles. This code indicates that the Engine Control Module (ECM) has detected a lack of pulses in the high-resolution signal from the camshaft position sensor ‘B’. The ECM relies on this signal to accurately determine the engine’s timing and fuel injection strategy.
BMW DTC P0379 symptoms
Symptoms of DTC P0379 on a BMW may include engine misfires, rough idling, poor acceleration, decreased fuel efficiency, and in some cases, the vehicle may even fail to start. The Check Engine Light (CEL) will likely be illuminated on the dashboard as well.
BMW DTC P0379 causes
The most common causes of DTC P0379 on BMW vehicles include a faulty camshaft position sensor ‘B’, wiring issues in the sensor circuit, a damaged sensor connector, or a malfunctioning ECM. It is essential to inspect these components thoroughly to pinpoint the exact cause of the issue.
BMW DTC P0379 seriousness
Ignoring DTC P0379 on a BMW can lead to potential engine damage, decreased performance, and increased fuel consumption. It is crucial to address this issue promptly to prevent further complications and ensure the vehicle operates optimally.
How to diagnose DTC P0379 on BMW
To diagnose DTC P0379 on a BMW, start by using a diagnostic scanner to retrieve the fault codes stored in the ECM. Perform a visual inspection of the camshaft position sensor ‘B’, its wiring, and connector for any visible damage. Test the sensor’s resistance and voltage output to determine if it is functioning correctly. Additionally, check the ECM for any signs of malfunction.
How to fix DTC P0379 on BMW
To fix DTC P0379 on a BMW, replace the faulty camshaft position sensor ‘B’ if it is determined to be the cause of the issue. Ensure all wiring and connectors are in good condition and properly connected. Clear the fault codes using a diagnostic scanner and test drive the vehicle to verify that the problem has been resolved.
How to erase DTC P0379 on BMW
To erase DTC P0379 on a BMW, use a diagnostic scanner to access the ECM and clear the fault codes stored in the system. Once the codes have been successfully cleared, perform a final check to ensure that the Check Engine Light is no longer illuminated and that the vehicle is operating normally.
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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