P240C

EVAP System Leak Detection Pump Heater Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Possible problems when passing an emissions test
EVAP system does not check for leaks
The leak detection pump may not operate correctly in cold weather.

Causes

Leak detection pump heater circuit open
Leak detection pump heater malfunction
Problems with the heater circuit relay or fuse
Short circuit in wiring harness
Engine control module (ECM) malfunction

How to Fix

Check heater circuit fuse and relay
Check the integrity of wires and connections in the circuit
Check the resistance of the leak detection pump heater
Replace leak detection pump if necessary
Check and, if necessary, reflash the engine control module

Related codes

P240B P240D P240E