P24DB

Reductant Purge Control Valve B Circuit /Open

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

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

Related codes

P24DA P24DC P24DD