P20FD

Reductant Pump B Control Circuit High

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Possible transition to emergency mode
Increased fuel consumption
SCR system error message on dashboard

Causes

Reagent pump malfunction
Open or short circuit in control circuit
Wiring Harness Problems
Control module malfunction
Corrosion of contacts or connectors

How to Fix

Check the integrity of the pump control circuit
Check connectors and contacts for corrosion
Check the functionality of the reagent pump
Check control circuit voltage
If necessary, replace the pump or repair the wiring

Related codes

P20FE P20EE P20E9