P2051

Reductant Injection Valve Circuit Low Bank 2 Unit 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Increased NOx emissions
Possible problems with passing technical inspection

Causes

Open or short circuit in valve circuit
Reagent injection valve malfunction
Problems with the relay or circuit fuse
Corrosion of contacts or connectors
SCR control module malfunction

How to Fix

Check the continuity and resistance of the valve circuit
Inspect connectors and contacts for corrosion
Check the functionality of the reagent injection valve
Test the relays and fuses of the corresponding circuit
If necessary, replace the valve or repair the wiring

Related codes

P204F P2050 P2052