OBD Guide

P24DB

Reductant Purge Control Valve B Circuit /Open

P24DB is an OBD-II diagnostic trouble code meaning: Reductant Purge Control Valve B Circuit /Open. Common causes: open or short circuit in valve wiring, reagent purge valve b malfunction. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased consumption of AdBlue reagent
  • Increased NOx emissions
  • Possible SCR error messages on the dashboard

Causes

  • Open or short circuit in valve wiring
  • Reagent purge valve B malfunction
  • Poor contact in valve connector
  • Wiring harness damage
  • SCR control module malfunction

How to Fix

  1. Check the integrity of the wiring to the valve
  2. Check valve resistance (compare with specifications)
  3. Inspect connectors for corrosion or damage
  4. Check the power and ground of the control circuit
  5. If necessary, replace reagent purge valve B

Related codes

Error P24DB by Vehicle Brand

FAQ

What does the P24DB code mean?

P24DB is an OBD-II diagnostic trouble code that indicates: Reductant Purge Control Valve B Circuit /Open

What causes a P24DB error code?

The most common causes of P24DB include: Open or short circuit in valve wiring; Reagent purge valve B malfunction; Poor contact in valve connector; Wiring harness damage.

How do I fix a P24DB diagnostic trouble code?

To fix P24DB: Check the integrity of the wiring to the valve. Check valve resistance (compare with specifications). Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24DB?

Yes, but get it checked soon

How much does it cost to fix P24DB?

The estimated repair cost for P24DB is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat