P20E9

Reductant Pressure Too High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Possible SCR error messages on the dashboard
Increased consumption of AdBlue reagent
Noticeable reagent leaks in the system

Causes

AdBlue pump malfunction
Blockage or restriction in SCR system tubes
Problems with the reagent pressure sensor
Pressure control valve malfunction
SCR control module software error

How to Fix

Diagnostics of the SCR system using a scanner
Checking the reagent pressure sensor
Inspect the system for leaks or blockages
Replacing a faulty pump or valve if necessary
Error reset and system test after repair

Related codes

P20EE P20E8 P204F