BMW DTC P245C – EGR Cooler Bypass Control Circuit Low (Bank 1)
DTC P245C meaning on BMW
DTC P245C indicates a low voltage condition in the EGR (Exhaust Gas Recirculation) Cooler Bypass Control Circuit for Bank 1 in a BMW vehicle. This fault code is specific to the EGR system and relates to the control circuit that manages the operation of the EGR cooler bypass valve.
BMW DTC P245C symptoms
Symptoms of DTC P245C in a BMW may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Potential rough idling or stalling
BMW DTC P245C causes
Common causes of DTC P245C in a BMW include:
- Faulty EGR cooler bypass control valve
- Wiring or connector issues in the EGR cooler bypass control circuit
- ECU (Engine Control Unit) software or hardware problems
BMW DTC P245C seriousness
While DTC P245C may not cause immediate drivability issues, it is essential to address this fault code promptly to prevent potential damage to the EGR system and ensure optimal engine performance and emissions compliance in the long run.
How to diagnose DTC P245C on BMW
To diagnose DTC P245C on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the EGR cooler bypass control valve and associated wiring for any visible damage or corrosion
- Test the EGR cooler bypass control circuit for proper voltage and continuity
- Check the ECU for any stored codes or software issues related to the EGR system
How to fix DTC P245C on BMW
To fix DTC P245C 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 code and perform a test drive to ensure the issue is resolved
How to erase DTC P245C on BMW
To erase DTC P245C on a BMW, the fault code can be cleared using a diagnostic scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is crucial to address the root cause of the fault code before clearing it to prevent it from reoccurring.
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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