The P1EFC fault code in automobiles indicates a problem with the Battery Charger Control Module. 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 Battery Charger Control Module, an open or shorted harness, or a poor electrical connection.

It is important to address this issue promptly as it can lead to further damage to the vehicle’s electrical system. The repair process involves visually inspecting the wiring harness and connectors for any damage or corrosion. The difficulty level of this repair is moderate, and it takes approximately 1.0 hour to fix.

To interpret the fault code, one needs to use an OBD-II scanner or code reader.

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 p1efc fault code.

Here are the symptoms to look out for:

  • The P1EFC fault code in automobiles 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.

The P1EFC automobile fault code can be caused by a faulty Battery Charger Control Module, open or shorted harness, or poor electrical connection.

  • The automobile fault code P1EFC can be caused by a faulty Battery Charger Control Module.
  • It can also be caused by an open or shorted harness of the Battery Charger Control Module.
  • Additionally, a poor electrical connection in the circuit of the Battery Charger Control Module can also trigger this fault code.

Below are the possible fixes for the automobile fault code p1efc, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p1efc, first, check the possible causes listed above.
  • Then, 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 P1EFC is a diagnostic trouble code related to the hybrid battery pack. The code indicates that there is an issue with the battery pack’s cooling system.

The estimated repair time for this issue 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 P1EFC code is an OBDII code that indicates a problem with the Battery Charger Control Module system voltage. This code is set by the Powertrain Control Module (PCM) when the system voltage is not within the normal operating range. The vehicle control modules or sensors monitor the system voltage to ensure it is within factory specifications.

If the system voltage is too low, the P1EFC code will be triggered, indicating a potential issue with the Battery Charger Control Module.

It is important to address this issue promptly to avoid further damage to the vehicle’s electrical system.

What are the possible causes of the P1EFC automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the P1EFC fault code. This code is caused by a faulty battery charger control module, an open or shorted harness, or poor electrical connection in the module 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 I visually inspect the related wiring harness and connectors to fix the P1EFC fault code?

If you’re experiencing the P1EFC fault code, which is indicated by the Engine Light ON or Service Engine Soon Warning Light, you may need to visually inspect the related wiring harness and connectors. This fault code is often caused by a faulty Battery Charger Control Module, an open or shorted harness, or a poor electrical connection. To fix the issue, check the possible causes listed above and inspect the wiring harness and connectors for any damage or corrosion. Look for broken, bent, pushed out, or corroded connector pins.

What are the signs that the Battery Charger Control Module harness is open or shorted, causing the P1EFC fault code?

If you notice the engine light or service engine soon warning light is on, it could be due to a faulty Battery Charger Control Module or an open or shorted Battery Charger Control Module harness. The cause may also be a poor electrical connection in the Battery Charger Control Module circuit. To fix this issue, you should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

p1efc error fault code explained

If your engine light is on, it could be due to a faulty Battery Charger Control Module or poor electrical connection. Check the wiring harness and connectors for damage or corrosion. Look for broken, bent, or pushed out pins.

Take action to fix the issue as soon as possible.

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