![Pulling check engine code P20B9 reductant heater "A" control circuit open.Engine seems to be running fine. Working on a Pulling check engine code P20B9 reductant heater "A" control circuit open.Engine seems to be running fine. Working on a](https://f01.justanswer.com/Xtra-Tech/0167f1eb-6d0f-49d4-b272-b6a75959bae9_2011+Sprinter+Under+Drivers+seat+fuses.jpg)
Pulling check engine code P20B9 reductant heater "A" control circuit open.Engine seems to be running fine. Working on a
![Micheal, I have a 2011 gl350 with obd code p20b9 for reductant heater "a" circuit ope. we have replaced the pot in the Micheal, I have a 2011 gl350 with obd code p20b9 for reductant heater "a" circuit ope. we have replaced the pot in the](https://ww2.justanswer.com/uploads/RA/Racer76916/2014-10-17_022130_adblue_pressure_line_heater_a1031r2.jpg)
Micheal, I have a 2011 gl350 with obd code p20b9 for reductant heater "a" circuit ope. we have replaced the pot in the
PPT RH: REDUCTANT HEATER (6.7... PPT RH: REDUCTANT HEATER (6.7L DIESEL) 2011 PCED 6.7L Diesel SECTION 5: Pinpoint
![I have a p20b9 code Says heater A control circuit open and. P20ba. Heater control performance. Coolant is good. 2013 f I have a p20b9 code Says heater A control circuit open and. P20ba. Heater control performance. Coolant is good. 2013 f](https://f01.justanswer.com/camerontech/ba6b9004-1626-4a10-8ff2-ff2b06f95ef3_heater.png)