OBD Guide

P24C1

EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off

P24C1 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off. Common causes: switch valve stuck, open or short circuit in control circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • Problems passing the toxicity test
  • The smell of gasoline in the cabin or near the car

Causes

  • Switch valve stuck
  • Open or short circuit in control circuit
  • Leak detection pump malfunction
  • Wiring Harness Problems
  • Engine control unit malfunction

How to Fix

  1. Check the valve control circuit for opens and short circuits.
  2. Check the resistance and operation of the switching valve
  3. Replace faulty switch valve
  4. Check the operation of the leak detection pump
  5. Replace leak detection pump if necessary

Related codes

Error P24C1 by Vehicle Brand

FAQ

What does the P24C1 code mean?

P24C1 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Switching Valve Performance/Stuck Off

What causes a P24C1 error code?

The most common causes of P24C1 include: Switch valve stuck; Open or short circuit in control circuit; Leak detection pump malfunction; Wiring Harness Problems.

How do I fix a P24C1 diagnostic trouble code?

To fix P24C1: Check the valve control circuit for opens and short circuits.. Check the resistance and operation of the switching valve. Replace faulty switch valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24C1?

Yes, but get it checked soon

How much does it cost to fix P24C1?

The estimated repair cost for P24C1 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat