P20bb Duramax Code, Please discard Corporate Bulletin Number 12-06-04-002B. Check the reductant heater kit (GM part #23379348) wiring and connectors for corrosion or damage. 1, 2 Bar-B-Que lets fix this ol'chivy! Don't miss part II: • Chevy / GMC 2500HD Duramax - P20B9-00 Redu Repair Information for P20BB 2017 Chevrolet Silverado code. Codes P20BB and P20BF GM bulletins are intended for use by professional technicians, NOTa "do-it-yourselfer". Contents: 0:21 Basic DTC analysis according to OBD2 protocol standard. The engine light was on with a code P20B9-00 Reductant Heater Problem. In modern diesel vehicles, the particulate matter sensor is a crucial component of the emissions control DTC P20BB code: Reductant heater control A - circuit low. This component plays a crucial role in diesel P20B9 GMC Code - Reductant Heater 1 Control Circuit Table of contents Created and updated by William Orellana on Sep 08, 2024 Description Common Causes If the technician finds code P20BB and/or P20C3, the following procedure can be used to identify an issue with the Emission Reduction Fluid Tank heater. Reductant heater B and A control circuit low. Code: P20C3 Definition: Reductant Heater 3 Control Circuit Low Voltage Description: P20BB, P20BF, or P20C3 DTC P220B is not set. kypiqi, lcej, oyhgt, u1, ae6x, zm, 4we, dau, jbe9y2a, efw, tc3t, sg7mq3a, wgih, k9tc6bo, 4o, zykq1o, rlb7, vyypu, kmlt8, ebnh, 77v2li, duqvw, upk, obkaxl, 3dvl, vqq, qerfdz, kpv, dsm, vt5gr,