P240A – BMW DTC

BMW DTC P240A – EVAP System Leak Detection Pump Heater Control Circuit/Open

DTC P240A meaning on BMW

DTC P240A on a BMW indicates a fault with the EVAP (Evaporative Emission Control System) System Leak Detection Pump Heater Control Circuit. This code specifically points to an open circuit in the heater control circuit of the leak detection pump.

BMW DTC P240A symptoms

Symptoms of DTC P240A on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Decreased fuel efficiency
• Strong fuel odor near the vehicle

BMW DTC P240A causes

Common causes of DTC P240A on a BMW include:

• Faulty leak detection pump
• Open or short circuit in the heater control circuit
• Corroded or damaged wiring connections

BMW DTC P240A seriousness

While DTC P240A 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 other emission control components, and may cause the vehicle to fail emissions testing.

How to diagnose DTC P240A on BMW

To diagnose DTC P240A on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors related to the leak detection pump heater control circuit
3. Test the leak detection pump for proper operation
4. Check for any visible signs of damage or corrosion

How to fix DTC P240A on BMW

To fix DTC P240A on a BMW, you may need to:

1. Replace the leak detection pump if it is found to be faulty
2. Repair any open or short circuits in the heater control circuit
3. Repair or replace any damaged wiring or connectors
4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P240A on BMW

To erase DTC P240A on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code
2. Perform a test drive to ensure the code does not return

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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