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DTC P20B9 Reductant Heater 1 control cicuit 0.50 found

Vehicle: 2012, Chevy, 2500 Silverado, Durmax Diesel
asked by

1 Answer

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://kvjournal.ru/p20b9_chevrolet.html

answered by (9.6k points)

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