BMW DTC P240C – EVAP System Leak Detection Pump Heater Control Circuit High
DTC P240C meaning on BMW
The Diagnostic Trouble Code (DTC) P240C on BMW refers to a fault in the EVAP (Evaporative Emission Control) System Leak Detection Pump Heater Control Circuit. This code indicates that there is a high voltage condition detected in the control circuit of the leak detection pump heater.
BMW DTC P240C symptoms
Symptoms of the BMW DTC P240C may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Issues with passing emissions tests
BMW DTC P240C causes
Common causes of the BMW DTC P240C may include:
- Faulty leak detection pump heater
- Wiring or connector issues in the control circuit
- Corrosion or damage to the components in the EVAP system
BMW DTC P240C seriousness
While the BMW DTC P240C may not cause immediate drivability issues, it is important to address this fault promptly. Ignoring this code can lead to increased emissions, potential damage to the catalytic converter, and may cause the vehicle to fail emissions tests.
How to diagnose DTC P240C on BMW
To diagnose the DTC P240C on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the wiring and connectors in the EVAP system for any visible damage or corrosion
- Test the leak detection pump heater for proper operation
- Check for any leaks in the EVAP system
How to fix DTC P240C on BMW
To fix the DTC P240C on a BMW, the following steps may be taken:
- Replace the faulty leak detection pump heater
- Repair or replace any damaged wiring or connectors in the control circuit
- Clean or replace any components in the EVAP system that are causing the fault
How to erase DTC P240C on BMW
To erase the DTC P240C on a BMW, the fault code can be cleared using a diagnostic scanner. After the repair has been completed, the code can be cleared to reset the Check Engine Light and ensure that the fault has been resolved.
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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