OBD II Fault Code

  • OBD II P2063

OBD-II Code Wiring issue is defined as a Reductant/Regeneration Supply Control Circuit Low

Diesel Exhaust Fluid (DEF) is used to assist in converting leftover exhaust particles to harmless gases. In order to burn off those particles, the temperature of the exhaust system needs to increase. the injection of DEF Fluid into the exhaust stream brings Diesel Particulate Filter (DPF) up to temperature. The system is then able to convert harmful NOx to Nitrogen, Carbon Dioxide, and water. If DEF Injector fails to operate properly, code P2063 will set.

Wiring issue Symptoms

  • DPF regeneration may not occur

Common Problems That Trigger the P2063 Code

  • DEF injector failure
  • Wiring issue
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