BMW DTC P054C – Cold Start ‘B’ Camshaft Position Timing Over-Advanced (Bank 2)
DTC P054C meaning on BMW
The DTC P054C code on a BMW indicates that the ‘B’ camshaft position timing on Bank 2 is over-advanced during cold start conditions. This means that the camshaft timing is not within the specified parameters set by the manufacturer, leading to potential performance issues.
BMW DTC P054C symptoms
Symptoms of the BMW DTC P054C code may include rough idling during cold starts, reduced engine performance, decreased fuel efficiency, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P054C causes
The common causes of the BMW DTC P054C code include a faulty camshaft position sensor, issues with the camshaft timing system, a malfunctioning variable valve timing (VVT) solenoid, or problems with the engine control module (ECM).
BMW DTC P054C seriousness
While the BMW DTC P054C code may not cause immediate drivability issues, it can lead to long-term engine damage if left unresolved. It is recommended to address this code promptly to prevent further complications.
How to diagnose DTC P054C on BMW
To diagnose the DTC P054C on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then perform a visual inspection of the camshaft position sensor, VVT solenoid, and related components to check for any visible damage or wear. Additionally, testing the camshaft timing system and performing a thorough inspection of the engine’s timing components may be necessary to pinpoint the exact cause of the issue.
How to fix DTC P054C on BMW
Fixing the BMW DTC P054C code may involve replacing the faulty camshaft position sensor, addressing issues with the camshaft timing system, replacing a malfunctioning VVT solenoid, or reprogramming the ECM if necessary. It is recommended to follow the manufacturer’s repair procedures and use genuine OEM parts to ensure proper functionality and reliability.
How to erase DTC P054C on BMW
To erase the DTC P054C code on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the ECM. After addressing the underlying issue that caused the code, the mechanic can then reset the Check Engine Light and verify that the code does not reappear during subsequent driving cycles.
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.