P20EA
Reductant Control Module Power Relay De-Energized Performance - Too Early
P20EA is an OBD-II diagnostic trouble code meaning: Reductant Control Module Power Relay De-Energized Performance - Too Early. Common causes: faulty reagent module power relay, problems in the relay power circuit (open, short circuit). Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Reducing engine power (limp home mode)
- Increased emissions of nitrogen oxides (NOx)
- SCR system error message on dashboard
- Problems with passing technical inspection
Causes
- Faulty reagent module power relay
- Problems in the relay power circuit (open, short circuit)
- Corrosion of relay contacts or connectors
- SCR control module software errors
- Damage to the wiring harness to the reagent module
How to Fix
- Check the condition of the power relay and its contacts
- Test the relay power circuit for open circuit and short circuit.
- Update SCR module software
- Replace the faulty relay if necessary
- Check the integrity of the wiring harness to the reagent module
Related codes
Error P20EA by Vehicle Brand
FAQ
What does the P20EA code mean?
P20EA is an OBD-II diagnostic trouble code that indicates: Reductant Control Module Power Relay De-Energized Performance - Too Early
What causes a P20EA error code?
The most common causes of P20EA include: Faulty reagent module power relay; Problems in the relay power circuit (open, short circuit); Corrosion of relay contacts or connectors; SCR control module software errors.
How do I fix a P20EA diagnostic trouble code?
To fix P20EA: Check the condition of the power relay and its contacts. Test the relay power circuit for open circuit and short circuit.. Update SCR module software. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20EA?
Limited driving only, diagnose soon
How much does it cost to fix P20EA?
The estimated repair cost for P20EA is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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