The P20C7 fault code in automobiles indicates a problem with the reductant heater system. This issue is often signaled by the engine light turning on.

The cause of the problem could be a faulty reductant heater, an open or shorted reductant heater harness, or a poor electrical connection in the reductant heater circuit.

It is important to address this issue promptly as it can lead to increased emissions and reduced fuel efficiency. The repair process involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector pins.

The repair time for this issue is estimated to be around 1.0 hour.

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

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the p20c7 fault code. Here are the symptoms to look out for:

  • The P20C7 fault code in an automobile can cause several symptoms.
  • The most common symptom is the illumination of the engine light or service engine soon warning light.
  • Other symptoms include reduced engine power, poor acceleration, rough idling, stalling, and decreased fuel efficiency.
  • Additionally, the vehicle may emit unusual noises or odors, and the transmission may shift roughly or erratically.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The P20C7 fault code can be caused by a faulty reductant heater, open or shorted harness, or poor electrical connection.

  • The automobile fault code P20C7 can be caused by a faulty reductant heater.
  • It can also be caused by an open or shorted reductant heater harness.
  • Additionally, a poor electrical connection in the reductant heater circuit can also trigger this fault code.

Below are the possible fixes for the automobile fault code: p20c7, including inspecting wiring harness, connectors, and damaged components.

  • To fix the automobile fault code P20C7, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors for any damage or corrosion.
  • Look 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 P20C7 indicates an issue with the reductant heater control circuit. 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 most shops 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 P20C7 code refers to a problem with the reductant heater and sender assembly in a vehicle.

This assembly contains a pickup tube, heating element, temperature sensor, and level sensor.

When the temperature sensor detects freezing temperatures, the Powertrain Control Module commands the glow plug control module to provide voltage to the heating element. The P20C7 code specifically indicates a low control circuit for the ‘D’ reductant heater. This can cause issues with thawing the liquid reductant during cold weather.

What are the possible causes of the P20C7 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the P20C7 fault code. This code is usually caused by a faulty reductant heater, an open or shorted reductant heater harness, or a poor electrical connection in the reductant heater 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’s pins.

How can one visually inspect the related wiring harness and connectors to fix the P20C7 fault code?

If you’re experiencing the P20C7 fault code, which is indicated by the engine light being on, you may have a faulty Reductant Heater or a poor electrical connection in the Reductant Heater circuit. To fix this issue, you should visually inspect the related wiring harness and connectors. Check for any damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify any issues and allow you to fix them accordingly.

What are the consequences of ignoring the P20C7 fault code and not fixing it in a timely manner?

Ignoring the P20C7 fault code, which indicates a faulty reductant heater or poor electrical connection, can lead to serious consequences such as reduced engine performance, increased emissions, and potential damage to the catalytic converter. It is important to promptly address the issue by visually inspecting the wiring harness and connectors and checking for damaged components.

p20c7 error fault code explained

If your engine light is on and the fault code is P20C7, it may be due to a faulty reductant heater or poor electrical connection. To fix it, visually inspect the wiring harness and connectors for damage or corrosion.

Check for broken or bent pins.

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