BMW DTC P0371 – Timing Reference High Resolution Signal ‘A’ Too Many Pulses
DTC P0371 meaning on BMW
DTC P0371 on a BMW indicates that the Engine Control Module (ECM) has detected that the timing reference high-resolution signal ‘A’ has too many pulses. This signal is crucial for the ECM to accurately control the ignition timing and fuel injection timing.
BMW DTC P0371 symptoms
Symptoms of DTC P0371 on a BMW may include rough idling, engine misfires, decreased fuel efficiency, lack of power, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P0371 causes
The common causes of DTC P0371 on a BMW include a faulty crankshaft position sensor, damaged timing chain or belt, issues with the camshaft position sensor, wiring problems, or a malfunctioning ECM.
BMW DTC P0371 seriousness
Ignoring DTC P0371 on a BMW can lead to poor engine performance, potential damage to engine components, and increased emissions. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P0371 on BMW
To diagnose DTC P0371 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the crankshaft and camshaft position sensors, check the timing chain or belt for proper alignment, and examine the wiring for any signs of damage or corrosion.
How to fix DTC P0371 on BMW
Fixing DTC P0371 on a BMW may involve replacing the faulty crankshaft position sensor, addressing any issues with the timing chain or belt, replacing the camshaft position sensor if necessary, repairing any damaged wiring, or reprogramming the ECM. It is recommended to follow the manufacturer’s diagnostic and repair procedures.
How to erase DTC P0371 on BMW
Once the underlying issue causing DTC P0371 on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the ECM to monitor the system for any new faults.
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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