BMW DTC P241A – O2 Sensor Signals Swapped Bank 1 Sensor 1 / Bank 1 Sensor 2
DTC P241A meaning on BMW
DTC P241A on a BMW indicates that the O2 sensor signals have been swapped between Bank 1 Sensor 1 and Bank 1 Sensor 2. This means that the signals from the upstream and downstream oxygen sensors on the same bank of the engine have been interchanged.
BMW DTC P241A symptoms
Symptoms of DTC P241A on a BMW may include poor engine performance, decreased fuel efficiency, rough idling, and potentially an illuminated Check Engine Light on the dashboard.
BMW DTC P241A causes
The most common causes of DTC P241A on a BMW are faulty oxygen sensors, wiring issues, or a malfunction in the engine control module (ECM) that is causing the sensor signals to be swapped.
BMW DTC P241A seriousness
While DTC P241A may not cause immediate harm to the vehicle, it can lead to decreased engine performance and fuel efficiency if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P241A on BMW
To diagnose DTC P241A on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and then perform a visual inspection of the oxygen sensor wiring and connections. They may also conduct tests to check the functionality of the oxygen sensors and the ECM.
How to fix DTC P241A on BMW
To fix DTC P241A on a BMW, the faulty oxygen sensors need to be identified and replaced if necessary. The wiring connections should be inspected and repaired if there are any issues. Additionally, any faults in the ECM should be addressed to ensure proper sensor signal readings.
How to erase DTC P241A on BMW
Once the underlying issue causing DTC P241A on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will erase the code from the ECM’s memory and turn off the Check Engine Light on the dashboard.
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.