P20BE

Reductant Heater B Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Possible starting problems in cold weather
SCR error message on dashboard

Causes

Open or short circuit in the heater circuit
Reagent heating element malfunction
Problems with the relay or circuit fuse
SCR control unit malfunction
Poor contact in circuit connectors

How to Fix

Check heater circuit fuses and relays
Inspect the wiring harness for damage
Check the resistance of the heating element
Scan the SCR control unit for additional errors
If necessary, replace the heating element or repair the wiring

Related codes

P20BD P20BF P20C0