[SOLVED] P138C Code: Fix Charge Air Cooler Bypass Sensor Performance For Optimal Performance

The automobile fault code P138C indicates a problem with the Charge Air Cooler Bypass Position Sensor. This can cause the Engine Light to turn on or the Service Engine Soon Warning Light to illuminate.

The possible causes include a faulty sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit. To fix this issue, you should visually inspect the wiring harness and connectors for any damage.

Look for broken, bent, pushed out, or corroded pins in the connectors.

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

It is important to address this issue promptly to prevent further damage to the vehicle.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p138c fault code.

  • The symptoms of the automobile fault code p138c include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

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The automobile fault code p138c can be caused by a faulty Charge Air Cooler Bypass Position Sensor, an open or shorted harness, or a poor electrical connection in the sensor circuit.

  • The fault code p138c can be caused by the following: 1.
  • Faulty Charge Air Cooler Bypass Position Sensor.
  • 2.
  • Open or shorted harness of the Charge Air Cooler Bypass Position Sensor.
  • 3.
  • Poor electrical connection in the circuit of the Charge Air Cooler Bypass Position Sensor.

To fix the automobile fault code p138c, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p138c, you need to follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • 5.
  • Repairing this fault code is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p138c are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P138C fault code refers to the Charge Air Cooler Bypass Position Sensor. This sensor is monitored by the Powertrain Control Module (PCM) in your vehicle. When the sensor is not functioning within the factory specifications, the PCM will set the OBDII code P138C.

This fault code indicates that there is an issue with the minimum or maximum stop performance of the Charge Air Cooler Bypass Position Sensor.

In other words, the sensor is not operating as it should, either by not reaching the minimum position or exceeding the maximum position. If you encounter this fault code, it is important to have the sensor checked and replaced if necessary.

A malfunctioning Charge Air Cooler Bypass Position Sensor can affect the performance and efficiency of your vehicle’s charge air cooling system. By addressing this issue promptly, you can ensure optimal performance and prevent further damage to your vehicle.

What are the possible causes of the automobile fault code p138c?

If you see the engine light or service engine soon warning light on, the fault code P138C could be the culprit. This code is often caused by a faulty charge air cooler bypass position sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the p138c fault code?

If you’re dealing with the p138c fault code and your engine light is on, it’s time to take action. The culprit could be a faulty Charge Air Cooler Bypass Position Sensor or issues with the sensor’s wiring harness and connectors. To fix this, visually inspect the wiring harness and connectors for any signs of damage or poor electrical connections. Look out for broken, bent, pushed out, or corroded pins on the connectors. Don’t delay, check these possible causes and get your engine back in top shape.

What should I look for when checking for damaged components and connector’s pins to resolve the p138c fault code?

When resolving the p138c fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing so, you can identify any issues with the Charge Air Cooler Bypass Position Sensor or its circuit connections. This will help you pinpoint the cause of the fault code and take the necessary steps to fix it.

p138c error fault code explained

If you’re seeing the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Charge Air Cooler Bypass Position Sensor. To fix this, visually inspect the wiring harness and connectors for any damage. Also, check for broken, bent, pushed out, or corroded connector pins.

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