What does fault code ECM-P240B00 mean?

Diagnostic fault code details for ECM-P240B00 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S60 (2011–)). Repair service at OBD Tuning.

VOLVO

ECM-P240B00 - Evaporative Emission System Leak Detection Pump Heater Circuit Low. General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

10 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Show models by year and engine (41)

What does this fault code mean?

The engine control module (ECM) checks the control signal to the heater element in the leakage diagnosis pump and sets the code when it registers a fault in that signal. The fault that applies here is a short circuit to ground in the signal wire to the heater element.

Possible causes

The signal wire to the heater element is short-circuited to ground
Damaged leakage diagnosis pump

What you can do

1Check that the relevant fuses are intact; their locations are shown in the car's owner's manual
2Read and clear the code, then check whether it returns
3Inspect the connector to the leak diagnostic unit for contact resistance, meaning loose contacts and oxidation
4Follow the signal wire to the heater element and look for chafing and pinching, especially where it may have touched the body
5Use a multimeter to check that the signal wire to the heater element has no contact with ground (the body)
6If the fault returns, have a workshop with diagnostic equipment check the leak diagnostic pump

Symptoms you may notice2

The malfunction indicator lamp lights up
The engine warning lamp (Check engine) lights up or behaves abnormally

General guidance for car owners. Diagnosis on the car can point to a different cause.