BMW DTC P245D – EGR Cooler Bypass Control Circuit High (Bank 1)
DTC P245D meaning on BMW
DTC P245D on a BMW indicates an issue with the EGR (Exhaust Gas Recirculation) Cooler Bypass Control Circuit on Bank 1. This fault code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the circuit responsible for controlling the EGR cooler bypass valve on Bank 1.
BMW DTC P245D symptoms
Symptoms of DTC P245D on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Increased fuel consumption
- Engine stalling or rough idling
BMW DTC P245D causes
Common causes of DTC P245D on a BMW include:
- Faulty EGR cooler bypass control valve
- Wiring or connector issues in the EGR cooler bypass control circuit
- ECM software or hardware issues
BMW DTC P245D seriousness
DTC P245D should not be ignored as it can lead to reduced engine efficiency and potential drivability issues. Continuing to drive with this fault code present may cause further damage to the engine components.
How to diagnose DTC P245D on BMW
To diagnose DTC P245D on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM
- Inspect the EGR cooler bypass control valve and associated wiring for any visible damage
- Test the EGR cooler bypass control circuit for proper voltage and continuity
- Check for any software updates available for the ECM
How to fix DTC P245D on BMW
To fix DTC P245D on a BMW, the following steps may be taken:
- Replace the faulty EGR cooler bypass control valve if necessary
- Repair any damaged wiring or connectors in the EGR cooler bypass control circuit
- Clear the fault codes stored in the ECM
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P245D on BMW
To erase DTC P245D on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made to address the underlying issue, the ECM can be reset to clear the fault code. It is important to ensure that the root cause of the fault has been fixed before clearing the DTC.
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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