OBD Guide

P240C

EVAP System Leak Detection Pump Heater Control Circuit High

P240C is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Heater Control Circuit High. Common causes: leak detection pump heater circuit open, leak detection pump heater malfunction. Estimated repair cost: $17–89.

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

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

Related codes

Error P240C by Vehicle Brand

FAQ

What does the P240C code mean?

P240C is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Heater Control Circuit High

What causes a P240C error code?

The most common causes of P240C include: Leak detection pump heater circuit open; Leak detection pump heater malfunction; Problems with the heater circuit relay or fuse; Short circuit in wiring harness.

How do I fix a P240C diagnostic trouble code?

To fix P240C: 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. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P240C?

Yes, but get it checked soon

How much does it cost to fix P240C?

The estimated repair cost for P240C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat