P20C9 – Reductant Control Module Requested MIL Illumination

P20C9 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P20C9 Possible Causes

Faulty Reductant Control Module,Reductant Control Module harness is open or shorted,Reductant Control Module circuit poor electrical connection

P20C9 Description

Reductant Control Module Requested MIL Illumination is the generic description for the P20c9 code, but the manufacturer may have a different description. Currently we have no further information abouth the P20c9 OBDII code.