The P2037 fault code in automobiles refers to a problem with the Reductant Injection Air Pressure Sensor. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light. The cause of this issue could be a faulty sensor, an open or shorted harness, poor electrical connection, or a faulty Reductant Pump Assembly.

The importance of repairing this issue lies in the fact that it can lead to decreased fuel efficiency and increased emissions.

The repair difficulty is moderate, with a repair time of 1.0. To fix the issue, one should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a sign of p2037 fault code.

Here are the symptoms to look out for:

  • The P2037 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, poor acceleration, rough idling, stalling, and decreased fuel efficiency.
  • Additionally, the vehicle may experience difficulty starting, and there may be a noticeable decrease in overall performance.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

P2037 fault code can be caused by a faulty sensor, poor electrical connection, or a malfunctioning pump assembly.

  • The automobile fault code P2037 can be caused by a faulty Reductant Injection Air Pressure Sensor.
  • It can also be caused by an open or shorted Reductant Injection Air Pressure Sensor harness.
  • Another cause can be a poor electrical connection in the Reductant Injection Air Pressure Sensor circuit.
  • Lastly, a faulty Reductant Pump Assembly can also trigger the P2037 fault code.

To fix the p2037 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code p2037, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code is P2037. The estimated repair time is 1.0 hour.

The cost of fixing the fault code depends on the hourly rate charged by the auto repair shop. The average hourly rate is between $75 and $150. Therefore, the cost of fixing the P2037 fault code can range from $75 to $150.

The P2037 fault code is related to the Reductant Injection Air Pressure Sensor ‘A’ Circuit. The reductant system injects a solution of urea in deionized water into the exhaust system to reduce Nitrogen Oxides (NOx) present in the exhaust stream. The Reductant Injection Air Pressure Sensor sends voltage reading information to the Powertrain Control Module (PCM) to interpret pressure or exhaust gas temperature.

The P2037 code is triggered when the voltage sent from the sensor to the PCM is outside of factory specifications.

What are the possible causes of the P2037 fault code?

If you’re experiencing the P2037 fault code, you may notice that your engine light is on. This could be due to a faulty Reductant Injection Air Pressure Sensor, an open or shorted harness, poor electrical connection, or a faulty Reductant Pump Assembly. To fix the issue, it’s important to visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the wiring harness and connectors related to the Reductant Injection Air Pressure Sensor?

If you’re experiencing an Engine Light ON (or Service Engine Soon Warning Light), it could be due to a faulty Reductant Injection Air Pressure Sensor or other related issues. To visually inspect the wiring harness and connectors related to the sensor, check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify if the Reductant Injection Air Pressure Sensor harness is open or shorted, or if there is a poor electrical connection in the circuit. Once you’ve identified the issue, you can take the necessary steps to fix it.

What are the consequences of not fixing the faulty Reductant Pump Assembly causing the P2037 fault code?

Ignoring the P2037 fault code caused by a faulty Reductant Pump Assembly can lead to serious consequences. The engine light or service engine soon warning light will remain on, indicating a problem with the vehicle’s emissions system. This can result in the vehicle failing an emissions test, and in some cases, the engine may go into a reduced power mode, causing poor performance and reduced fuel efficiency. It is important to address the issue promptly by checking the possible causes and visually inspecting the related wiring harness and connectors.

p2037 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Reductant Injection Air Pressure Sensor, open or shorted harness, poor electrical connection, or a faulty Reductant Pump Assembly. Check the possible causes, inspect the wiring harness and connectors, and look for damaged components or corroded pins.

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