The P2045 fault code in automobiles indicates a problem with the Reductant Temperature 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, or a poor electrical connection. It is important to address this issue promptly as it can lead to reduced fuel efficiency and increased emissions. The repair process involves visually inspecting the wiring harness and connectors for any damage or corrosion.

The difficulty level of this repair is considered to be moderate, and it typically takes around 1.0 hour to fix. To interpret the fault code, it is recommended to check the “Possible Causes” listed above and inspect the related components thoroughly.

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 p2045 fault code. Here are the symptoms to look out for:

  • The P2045 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 a decrease in engine power, rough idling, stalling, or difficulty starting the engine.
  • Additionally, the vehicle may experience poor fuel economy, reduced acceleration, or a decrease in overall performance.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

P2045 fault code can be caused by a faulty sensor, openshorted harness, or poor electrical connection.

  • The automobile fault code P2045 can be caused by a faulty Reductant Temperature Sensor.
  • It can also be caused by an open or shorted Reductant Temperature Sensor harness.
  • Additionally, a poor electrical connection in the Reductant Temperature Sensor circuit can also trigger this fault code.

To fix the automobile fault code p2045, check the possible causes and inspect related components for damage or corrosion.

  • To fix the automobile fault code p2045, 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 automobile fault code P2045 indicates an issue with the reductant injector circuit in the diesel exhaust fluid system.

The estimated repair time for this fault code is 1.0 hour. The cost of fixing this issue can vary depending on the auto repair shop, but it is common for them to charge between $75 and $150 per hour. Other factors that may influence the cost include the severity of the issue, the type of vehicle, and the location of the repair shop.

The P2045 fault code is related to the reductant heater and sender assembly in a vehicle. This assembly contains a pickup tube for the reductant pump module, an electric heating element, a reductant temperature sensor, and an electrode type level sensor. The fault code is triggered when the reductant temperature sensor circuit detects a high temperature.

This can cause issues with the heating element and the thawing of liquid reductant within the assembly during cold temperatures.

It is important to address this fault code promptly to ensure proper functioning of the reductant system in the vehicle.

What are the possible causes of the P2045 automobile fault code?

If your engine light is on and you’re seeing the P2045 fault code, it could be due to a faulty Reductant Temperature Sensor, an open or shorted Reductant Temperature Sensor harness, or a poor electrical connection in the Reductant Temperature Sensor circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors related to the Reductant Temperature Sensor?

If you’re experiencing an illuminated Engine Light or Service Engine Soon Warning Light, it could be due to a faulty Reductant Temperature Sensor or an open/shorted harness. To fix this issue, start by visually inspecting the wiring harness and connectors related to the sensor. Check for any damaged components and look for broken, bent, pushed out, or corroded connector pins. This will help you identify any poor electrical connections and get your vehicle back on track.

What should I do if I find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P2045 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins during the inspection for the P2045 fault code, you should visually inspect the related wiring harness and connectors. Check for any possible damage and replace any faulty components. This will help to ensure that the Reductant Temperature Sensor is functioning properly and that the engine light or service engine soon warning light is turned off.

p2045 error fault code explained

If your engine light is on and you have a P2045 fault code, it may be due to a faulty Reductant Temperature Sensor or poor electrical connection. Check the wiring harness and connectors for damage or corrosion. Inspect the components and connector pins for any issues.

Scroll to Top