P208C OBD-II: Reductant Pump Control Circuit Low

P208C Severity

Urgent

Should you fix P208C yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

Schedule Diagnosis

What causes OBD-II fault code P208C?

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. The Reductant Catalyst (SRC) was added to further reduce any NOx was still in the exhaust stream. The Reductant Pump transfers the DEF (Diesel Exhaust Fluid) from the tank to the DEF Injector. If the Reductant Pump fails to perform as requested by the engine computer (PCM), code P208C will be stored.

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OBD II Fault Code

  • OBD II P208C

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Reductant Pump 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. The Reductant Catalyst (SRC) was added to further reduce any NOx was still in the exhaust stream. The Reductant Pump transfers the DEF (Diesel Exhaust Fluid) from the tank to the DEF Injector. If the Reductant Pump fails to perform as requested by the engine computer (PCM), code P208C will be stored.

Powertrain Control Module (PCM) failure Symptoms

  • DPF regeneration may not occur

Common Problems That Trigger the P208C Code

  • Powertrain Control Module (PCM) failure
  • Reductant pump failure
  • Wiring issue
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