BMW DTC P2AA6 – EGR Cooler Bypass Control Circuit Driver Current/Temperature Too High Bank 2
DTC P2AA6 meaning on BMW
The DTC P2AA6 error code on BMW vehicles indicates an issue with the EGR (Exhaust Gas Recirculation) Cooler Bypass Control Circuit Driver Current/Temperature being too high on Bank 2. This means that there is a problem with the control circuit that manages the EGR cooler bypass function, leading to abnormal current or temperature levels.
BMW DTC P2AA6 symptoms
Symptoms of the DTC P2AA6 error code on a BMW may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Engine stalling or rough idling
BMW DTC P2AA6 causes
Common causes of the DTC P2AA6 error code on BMW vehicles include:
- Faulty EGR cooler bypass control circuit
- Short circuit or open circuit in the wiring related to the EGR system
- Defective EGR cooler bypass control module
- Issues with the EGR valve or cooler
BMW DTC P2AA6 seriousness
The DTC P2AA6 error code should not be ignored as it can lead to reduced engine efficiency and potential drivability issues. Continuing to drive with this fault may cause further damage to the engine components and result in costly repairs.
How to diagnose DTC P2AA6 on BMW
To diagnose the DTC P2AA6 error code on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s ECU
- Inspect the EGR system components for any visible damage or leaks
- Check the wiring and connectors related to the EGR cooler bypass control circuit
- Test the EGR cooler bypass control module for proper functionality
How to fix DTC P2AA6 on BMW
To fix the DTC P2AA6 error code on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connectors in the EGR system
- Replace the faulty EGR cooler bypass control module if necessary
- Clean or replace the EGR valve and cooler if they are found to be defective
- Clear the fault codes from the ECU memory after completing the repairs
How to erase DTC P2AA6 on BMW
To erase the DTC P2AA6 error code on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the ECU memory. After completing the necessary repairs to address the underlying issue causing the fault code, the scanner can be used to reset the codes and turn off the Check Engine Light.
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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