Engine-CodesRAM – P208C RAM

P208C RAM Code - Diesel Exhaust Fluid Reductant Pump Control Circuit Low

Quick Answer

The P208C code indicates a problem with the Diesel Exhaust Fluid (DEF) reductant pump control circuit being low. Common causes include Wiring Faults: Damage to the wiring harness or connectors related to the DEF reductant pump control circuit can cause this code to be triggered, Faulty Reductant Pump: A malfunctioning reductant pump can also lead to issues with the control circuit, Control Module Issues: Problems with the control module that manages the DEF reductant pump can cause this code to appear. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P208C RAM indicates Diesel Exhaust Fluid Reductant Pump Control Circuit Low.
Common causes
Common causes include Wiring Faults: Damage to the wiring harness or connectors related to the DEF reductant pump control circuit can cause this code to be triggered, Faulty Reductant Pump: A malfunctioning reductant pump can also lead to issues with the control circuit, Control Module Issues: Problems with the control module that manages the DEF reductant pump can cause this code to appear.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P208C RAM Description

The P208C code indicates a problem with the Diesel Exhaust Fluid (DEF) reductant pump control circuit being low. DEF is a fluid used in modern diesel engines to reduce emissions and meet stricter environmental regulations. The reductant pump is responsible for supplying the DEF to the exhaust system for the selective catalytic reduction (SCR) process, which helps in converting harmful nitrogen oxides into nitrogen and water vapor.

OBDII Code P208C RAM - Diesel Exhaust Fluid Reductant Pump Control Circuit Low
P208C RAM Code - Diesel Exhaust Fluid Reductant Pump Control Circuit Low

Common Causes of P208C RAM

  1. Wiring Faults: Damage to the wiring harness or connectors related to the DEF reductant pump control circuit can cause this code to be triggered.
  2. Faulty Reductant Pump: A malfunctioning reductant pump can also lead to issues with the control circuit.
  3. Control Module Issues: Problems with the control module that manages the DEF reductant pump can cause this code to appear.
  4. Electrical Issues: Any electrical issues within the system, such as blown fuses or relays, can also trigger this code.

Symptoms of P208C RAM

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Reduced Engine Performance: The vehicle may experience a decrease in engine performance, such as reduced power or acceleration.
  3. Poor Fuel Efficiency: A malfunctioning DEF reductant pump control circuit can lead to decreased fuel efficiency.
  4. Failed Emissions Test: If the issue is not addressed, it may result in the vehicle failing emissions tests due to increased emissions.

How to Fix P208C RAM

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific fault codes and pinpoint the exact cause of the problem.
  2. Inspect Wiring and Connectors: Check the wiring harness and connectors for any signs of damage or corrosion and repair or replace them as needed.
  3. Test Reductant Pump: Test the DEF reductant pump to ensure it is functioning correctly. Replace it if necessary.
  4. Check Control Module: Inspect the control module for any faults or issues and replace it if needed.
  5. Clear Codes and Test Drive: Clear the fault codes from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P208C RAM

The cost of repairing a Diesel Exhaust Fluid Reductant Pump Control Circuit Low issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for this repair can range from $200 to $600, with labor costs adding another $100 to $300. Overall, the total cost of repairing this issue can range from $300 to $900. It is advisable to consult with a trusted mechanic or repair shop to get an accurate estimate based on your vehicle's make and model, as well as the specific diagnosis and repair needed. Labor rates can vary between $80 and $150 per hour, so it's essential to consider this when estimating the total repair cost.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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