OBD Guide

P24DF

Reductant Purge Control Valve B Stuck Open

P24DF is an OBD-II diagnostic trouble code meaning: Reductant Purge Control Valve B Stuck Open. Common causes: mechanical valve jamming, valve wiring problems. Estimated repair cost: $50–133.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$50–133 (est.)

Symptoms

  • Increased consumption of AdBlue reagent
  • Check Engine Light Illuminates
  • Reduced engine power
  • SCR error message on dashboard
  • Unpleasant smell of urea from the exhaust system

Causes

  • Mechanical valve jamming
  • Valve wiring problems
  • Control relay malfunction
  • Short circuit in control circuit
  • Control unit software error

How to Fix

  1. Check the condition of the reagent purge valve
  2. Check the integrity of the wiring harness and connectors
  3. Check the operation of the control relay
  4. Test valve coil resistance
  5. If necessary, replace the purge valve

Related codes

Error P24DF by Vehicle Brand

FAQ

What does the P24DF code mean?

P24DF is an OBD-II diagnostic trouble code that indicates: Reductant Purge Control Valve B Stuck Open

What causes a P24DF error code?

The most common causes of P24DF include: Mechanical valve jamming; Valve wiring problems; Control relay malfunction; Short circuit in control circuit.

How do I fix a P24DF diagnostic trouble code?

To fix P24DF: Check the condition of the reagent purge valve. Check the integrity of the wiring harness and connectors. Check the operation of the control relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24DF?

Yes, but get it checked soon

How much does it cost to fix P24DF?

The estimated repair cost for P24DF is $50–133. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat