BMW DTC P1339 – Camshaft Position Sensor ‘B’ Faulty Phase Position (Bank 1)
DTC P1339 meaning on BMW
DTC P1339 on a BMW indicates a fault with the Camshaft Position Sensor ‘B’ in terms of incorrect phase position on Bank 1. This fault code is specific to BMW vehicles and is related to the timing of the camshaft in relation to the crankshaft.
BMW DTC P1339 symptoms
Symptoms of DTC P1339 on a BMW may include rough idling, engine misfires, decreased fuel efficiency, and in some cases, the vehicle may go into a limp mode where performance is significantly reduced.
BMW DTC P1339 causes
The most common causes of DTC P1339 on a BMW are a faulty camshaft position sensor, issues with the timing chain or belt, incorrect camshaft timing, or wiring/connectivity problems related to the sensor.
BMW DTC P1339 seriousness
While the vehicle may still be operable with DTC P1339, it is not recommended to ignore this fault code as it can lead to more severe engine issues if left unresolved. It is advisable to address this problem promptly to prevent further damage.
How to diagnose DTC P1339 on BMW
To diagnose DTC P1339 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform further testing on the camshaft position sensor, timing components, and related wiring to pinpoint the exact cause of the issue.
How to fix DTC P1339 on BMW
Fixing DTC P1339 on a BMW usually involves replacing the faulty camshaft position sensor, addressing any timing chain/belt issues, ensuring correct camshaft timing, and repairing any wiring problems. It is recommended to follow manufacturer guidelines and use quality replacement parts.
How to erase DTC P1339 on BMW
Once the underlying issue causing DTC P1339 on a BMW has been fixed, the fault code can be erased using a diagnostic scanner. This will clear the code from the vehicle’s memory and turn off the check engine light. It is important to verify that the issue has been resolved before clearing the code.
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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