P2064

Reductant/Regeneration Supply Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased AdBlue urea consumption
Increased NOx emissions
Possible SCR error messages on the dashboard

Causes

Open or short circuit in the reagent supply control circuit
AdBlue solenoid valve malfunction
Problems with the SCR system control unit
Corroded or damaged connectors
Malfunction of the reagent level or quality sensor

How to Fix

Check the integrity of the control circuit wiring harness
Check the resistance and operation of the solenoid valve
Inspect connectors for corrosion or damage
Check the operating parameters of the SCR control unit
If necessary, replace faulty components

Related codes

P2065 P2066 P2067