Engine-CodesGeneric – P20EA

P20EA Code - Reductant Control Module Power Relay De-Energized Performance Too Early

Quick Answer

The P20EA diagnostic trouble code refers to the Reductant Control Module Power Relay De-Energized Performance Too Early. Common causes include Faulty power relay in the reductant control module, Wiring or connection issues in the reductant control module, Software glitches in the vehicle's engine control module. 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
P20EA indicates Reductant Control Module Power Relay De-Energized Performance Too Early.
Common causes
Common causes include Faulty power relay in the reductant control module, Wiring or connection issues in the reductant control module, Software glitches in the vehicle's engine control module.
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 P20EA Description

The P20EA diagnostic trouble code refers to the Reductant Control Module Power Relay De-Energized Performance Too Early. This code indicates that the power relay in the reductant control module is turning off prematurely, affecting the performance of the vehicle's emissions control system. The reductant control module is responsible for managing the injection of diesel exhaust fluid (DEF) into the exhaust stream to reduce harmful emissions.

OBDII Code P20EA - Reductant Control Module Power Relay De-Energized Performance Too Early
P20EA Code - Reductant Control Module Power Relay De-Energized Performance Too Early

Common Causes of P20EA

  1. Faulty power relay in the reductant control module
  2. Wiring or connection issues in the reductant control module
  3. Software glitches in the vehicle's engine control module
  4. Electrical system issues
  5. Environmental factors such as extreme temperatures affecting the emissions control system

Symptoms of P20EA

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Reduced engine performance
  4. Failed emissions test
  5. Unusual exhaust odor

How to Fix P20EA

  1. Diagnose the specific cause of the P20EA code using a diagnostic scanner to pinpoint the issue with the reductant control module.
  2. Inspect the power relay and wiring connections for any signs of damage or corrosion. Replace any faulty components as needed.
  3. Check for software updates for the vehicle's engine control module to address any potential glitches causing the code.
  4. Clear the code from the vehicle's computer system after repairs are completed.
  5. Test drive the vehicle to ensure that the issue has been resolved and that no further codes are present.

Cost to Fix P20EA

The typical repair costs for addressing the P20EA code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing a faulty power relay or addressing wiring issues in the reductant control module can range from $200 to $500, including parts and labor. It's important to note that diagnosis time and labor rates can vary, so it's advisable to check with local repair shops for a more accurate estimate based on your vehicle make and model.

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Code P20EA Information for Specific Makes

  • P20EA Ford — Reductant Control Module Power Relay De-Energized Performance Too Early
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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