P2037 Code - Reductant Injection Air Pressure Sensor 'A' Circuit
Quick Answer
The reductant system uses a selective reduction catalyst to improve exhaust emissions and fuel efficiency by injecting a reductant into the exhaust system. Common causes include Faulty Reductant Injection Air Pressure Sensor, Reductant Injection Air Pressure Sensor harness is open or shorted, Reductant Injection Air Pressure Sensor 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
- P2037 indicates Reductant Injection Air Pressure Sensor 'A' Circuit.
- Common causes
- Common causes include Faulty Reductant Injection Air Pressure Sensor, Reductant Injection Air Pressure Sensor harness is open or shorted, Reductant Injection Air Pressure Sensor 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 P2037 Description
The Reductant Injection Air Pressure Sensor sends voltage reading information to the Powertrain Control Module (PCM). The PCM interprets these readings as pressure or exhaust gas temperature. The code is set when the voltage sent from the sensor to the PCM is out of factory specifications.
What are the Possible Causes of the DTC P2037?
- Faulty Reductant Injection Air Pressure Sensor
- Reductant Injection Air Pressure Sensor harness is open or shorted
- Reductant Injection Air Pressure Sensor circuit poor electrical connection
- Faulty Reductant Pump Assembly
How to Fix the DTC P2037?
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 P2037 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 P2037 code?
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Need Help with the Code?
Get the P2037 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P2037 Chevrolet — Reductant Injection Air Pressure Sensor 'A' Circuit
- P2037 Dodge — Reductant Injection Air Pressure Sensor 'A' Circuit
- P2037 Ford — Reductant Injection Air Pressure Sensor 'A' Circuit
- P2037 GMC — Reductant Injection Air Pressure Sensor 'A' Circuit
- P2037 Mercedes-Benz — Reductant Injection Air Pressure Sensor 'A' Circuit
Frequently Asked Questions about P2037 Code
1. What are the common symptoms of OBDII code P2037 (Reductant Injection Air Pressure Sensor 'A' Circuit)?
- Common symptoms include reduced engine performance, decreased fuel efficiency, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P2037?
- Possible causes include a faulty reductant injection air pressure sensor, wiring issues in the sensor circuit, or a problem with the engine control module (ECM).
3. How can I diagnose OBDII code P2037?
- Diagnosing this code typically involves using a scan tool to retrieve the specific error code, checking the wiring connections to the sensor, and testing the sensor itself for proper functionality.
4. Can I still drive my vehicle with OBDII code P2037?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the engine components and potentially worsen fuel economy.
5. How can I repair OBDII code P2037?
- Repair options may include replacing the reductant injection air pressure sensor, repairing any damaged wiring or connectors, or reprogramming the ECM to address the issue.
6. Is it safe to reset the check engine light after fixing OBDII code P2037?
- Yes, once the underlying issue causing the code has been resolved, it is safe to reset the check engine light using a scan tool.
7. Can a DIY enthusiast fix OBDII code P2037 at home?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code at home. However, professional assistance is recommended for more complex issues.
8. How much does it typically cost to repair OBDII code P2037 at a mechanic or dealership?
- Repair costs can vary depending on the specific cause of the code, but it may range from $100 to $300 for parts and labor at a mechanic or dealership.
9. Are there any preventative maintenance tips to avoid OBDII code P2037?
- Regularly inspecting and maintaining the reductant injection system components, such as the sensor and associated wiring, can help prevent issues that may trigger this code.
10. Will OBDII code P2037 cause my vehicle to fail an emissions test?
- Yes, having this code present can cause your vehicle to fail an emissions test, as it indicates a problem with the emissions control system that needs to be addressed.
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