P20F0

SCR NOx Catalyst - Over Temperature Bank 2

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Possible unpleasant odor from the exhaust system
Increased urea consumption (AdBlue)
SCR error message on dashboard

Causes

SCR temperature sensor malfunction
Problems with the urea injection system
SCR catalyst clogged
Malfunction of the electronic control unit
Damage to sensor wiring

How to Fix

Check SCR temperature sensors
Diagnose the urea injection system
Clean or replace SCR catalyst
Check wiring harness and connections
Update ECU software if necessary

Related codes

P20EE P20E9 P2201