AutoCodes – RAM – P2000 RAM

P2000 RAM Code - Oxides Of Nitrogen Trap Efficiency Below Threshold

Quick Answer

The engine aftertreatment system monitors the oxygen content in the diesel engine exhaust. Common causes include Faulty Oxygen (O2) Sensors, Oxygen Sensors harness is open or shorted, Oxygen Sensors 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: P2000 RAM indicates Oxides Of Nitrogen Trap Efficiency Below Threshold.
Common causes: Common causes include Faulty Oxygen (O2) Sensors, Oxygen Sensors harness is open or shorted, Oxygen Sensors 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 300

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 03, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2000 RAM Description

The engine aftertreatment system monitors the oxygen content in the diesel engine exhaust. The Powertrain Control Module (PCM) monitors the exhaust gases for oxygen content and varies the rich/lean fuel mixture of the intake air fuel mixture to adjust system. This diagnostic measures the oxygen storage capability of the Nitrates of Oxygen (NOx) Absorber Catalyst. The PCM will set the fault if it detects that the NOx Absorber performance is lower than expected. A mobile desoot should not be performed while investigating this fault. The PCM will illuminate the MIL lamp immediately when the diagnostic runs and fails. The PCM will turn off the MIL lamp diagnostic runs and passes in four consecutive drive cycles.

OBDII Code P2000 RAM - Oxides Of Nitrogen Trap Efficiency Below Threshold - AutoCodes.com — P2000 RAM Code - Oxides Of Nitrogen Trap Efficiency Below Threshold

What does this mean?

What are the Possible Causes of the DTC P2000 RAM?

Faulty Oxygen (O2) Sensors
Oxygen Sensors harness is open or shorted
Oxygen Sensors circuit poor electrical connection
Faulty Mass Air Flow (MAF) Sensor
Exhaust Leaks
Powertrain Control Module (PCM) Software Update
Faulty Powertrain Control Module
Nox Absorber Catalyst (NAC)

How to Fix the DTC P2000 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 P2000 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.

Need more information about the P2000 RAM code?

Need more information on how to fix the P2000 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2000 RAM code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P2000 RAM Code

1. What does OBDII code P2000 mean?

The OBDII code P2000 indicates that the Oxides of Nitrogen (NOx) trap efficiency is below the threshold set by the manufacturer.

2. What are the common symptoms of OBDII code P2000?

Common symptoms of P2000 may include decreased fuel efficiency, rough idling, loss of power, and the illumination of the Check Engine light.

3. What are the possible causes of OBDII code P2000?

The causes of P2000 can include a faulty NOx sensor, a malfunctioning catalytic converter, exhaust leaks, or issues with the engine's air-fuel ratio.

4. How do I diagnose OBDII code P2000?

Diagnosing P2000 typically involves using an OBDII scanner to retrieve the code, inspecting the NOx sensor, checking for exhaust leaks, and testing the catalytic converter's efficiency.

5. Can I drive with OBDII code P2000?

It is not recommended to drive with an unresolved P2000 code, as it can lead to increased emissions, engine performance issues, and potential damage to the catalytic converter.

6. How do I repair OBDII code P2000?

Repairing P2000 may involve replacing the NOx sensor, repairing any exhaust leaks, addressing issues with the catalytic converter, and ensuring the engine is running at optimal performance.

7. Can I reset OBDII code P2000 without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is crucial to address the underlying problem causing P2000 to prevent further damage to the vehicle and ensure it meets emission standards.

8. How much does it cost to fix OBDII code P2000?

The cost to fix P2000 can vary depending on the specific issue causing the code, but it may range from a few hundred dollars for sensor replacement to more extensive repairs for issues like a faulty catalytic converter.

9. How long does it take to repair OBDII code P2000?

The repair time for P2000 can vary based on the complexity of the issue and the availability of parts. Minor repairs may take a few hours, while more extensive repairs could take a day or more.

10. Can a DIY enthusiast fix OBDII code P2000 at home?

While some aspects of diagnosing and repairing P2000 can be done at home by experienced DIY enthusiasts, certain repairs, such as replacing the catalytic converter, may require professional assistance due to the complexity involved.