P20FA RAM Code - Reductant Pump 2 Control Circuit Open
Quick Answer
The Powertrain Control Module (PCM) monitors the Diesel Exhaust Fluid (DEF) pressure buildup system to provide correct (overall) performance. Common causes include Faulty Diesel Exhaust Fluid (DEF) Pump, Diesel Exhaust Fluid Pump harness is open or shorted, Diesel Exhaust Fluid Pump circuit poor electrical connection. 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
- P20FA RAM indicates Reductant Pump 2 Control Circuit Open.
- Common causes
- Common causes include Faulty Diesel Exhaust Fluid (DEF) Pump, Diesel Exhaust Fluid Pump harness is open or shorted, Diesel Exhaust Fluid Pump circuit poor electrical connection.
- 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.
Code P20FA RAM Description
What are the Possible Causes of the DTC P20FA RAM?
- Faulty Diesel Exhaust Fluid (DEF) Pump
- Diesel Exhaust Fluid Pump harness is open or shorted
- Diesel Exhaust Fluid Pump circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P20FA RAM?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P20FA RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P20FA RAM Code
1. What does the OBDII code P20FA mean on a RAM vehicle?
P20FA indicates an issue with the Reductant Pump 2 Control Circuit, specifically an open circuit, which affects the diesel exhaust fluid (DEF) system.
2. What are the common symptoms of a P20FA code?
Symptoms include the check engine light turning on, DEF-related warning messages, poor engine performance, or the vehicle entering limp mode.
3. What causes the P20FA code to appear?
Common causes include faulty reductant pump wiring, a malfunctioning reductant pump, damaged electrical connectors, or a blown fuse in the control circuit.
4. Can I drive my vehicle with a P20FA code?
While the vehicle may still be drivable, long-term operation with this code can lead to reduced performance and emissions compliance issues. It’s best to address it promptly.
5. How can I diagnose a P20FA code?
Start by inspecting the wiring and connectors for damage, checking the reductant pump for proper operation, and testing the circuit for continuity and voltage.
6. Does the P20FA code mean the reductant pump needs replacement?
Not necessarily. The issue could be due to a wiring problem, connector issue, or another electrical fault rather than the pump itself.
7. What tools are needed to troubleshoot a P20FA code?
You’ll need an OBDII scanner, a multimeter for electrical testing, and possibly a wiring diagram for your vehicle’s DEF system.
8. How much does it cost to fix a P20FA code?
Repair costs can vary depending on the cause. Wiring repairs may cost less than $100, while reductant pump replacement could range from $500 to $1,000 or more.
9. Is P20FA a common issue on RAM trucks?
This code is not extremely common but can occur in vehicles with a DEF system, particularly if wiring or pump components degrade over time.
10. How can I prevent the P20FA code from recurring?
Regular maintenance of the DEF system, including inspecting wiring and connectors for damage, can help prevent this code from reappearing.
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