P20B9 - 2012 Chevy Silverado Diesel exhaust code found

Question

DTC P20B9 Reductant Heater 1 control cicuit 0.50 found

Answer 1

Hi there,

This code indicates an issue with the reductant heater. Here is some info for you.

P20B9 CHEVROLET - Reductant Heater 'A' Control Circuit/Open

Read more: https://www.autocodes.com/p20b9_chevrolet.html