P202F

Reductant/Regeneration Supply Control Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unpleasant exhaust smell
SCR system error message on dashboard

Causes

Reagent level sensor malfunction
Problems with the reagent pump
Open or short circuit in control circuit
Clogged reagent injection nozzle
SCR control module malfunction

How to Fix

Check the level and quality of the reagent (AdBlue)
Diagnose the control circuit for opens and short circuits
Check the functionality of the reagent supply pump
Clean or replace the reagent injection nozzle
Flash or replace the SCR control module if necessary

Related codes

P202E P203A P203B