P007C Fault Code

P007C OBD-II Trouble Code Short Description

Charge Air Cooler Temperature Sensor Circuit Low Bank 1

What does trouble code P007C mean?

The P007C fault code refers to the Charge Air Cooler Temperature Sensor Circuit Low for Bank 1. This code indicates that there is a problem with the sensor's circuit, resulting in a reading that is lower than normal.

The charge air cooler (CAC) is responsible for cooling down the compressed air from the turbocharger before it enters the engine. The temperature sensor in the CAC measures the temperature of the air to ensure it is within the optimal range for combustion.

When the P007C code is triggered, it typically means that there is a fault in the circuit that connects the temperature sensor to the engine control module (ECM). This could be caused by a faulty sensor, a loose or corroded connector, or a wiring issue.

To diagnose and resolve this issue, you will need to perform the following steps:

  1. Inspection - Examine the sensor and its wiring for any visible damage, such as frayed wires or loose connections. Make sure to check the wiring harness and connector for any signs of corrosion or moisture.

  2. Testing - Use a multimeter to test the resistance of the temperature sensor. Compare the readings to the specifications provided by the vehicle manufacturer. If the sensor is outside the acceptable range, it will need to be replaced.

  3. Check the circuit - Test the voltage supply and ground connections to ensure they are providing the correct power to the sensor. Repair or replace any damaged wiring or connectors.

  4. Clear the fault code - Once the issue has been resolved, use an OBD-II scanner to clear the fault code from the ECM's memory. This will turn off the check engine light.

It is important to note that addressing the underlying cause of the P007C fault code is necessary to prevent any potential engine performance issues or damage. If you are not confident in your abilities to diagnose and repair the problem, it is recommended to consult a qualified mechanic or dealership.


What are the symptoms of the P007C code?

Some of the symptoms that may be associated with a P007C fault code on cars include:

  • Check engine light or malfunction indicator lamp (MIL) illumination
  • Reduced engine power or performance
  • Poor fuel efficiency
  • Engine overheating
  • Abnormal readings or fluctuations in the charge air cooler temperature gauge
  • Decreased or erratic turbocharger response
  • Potential engine misfires or hesitation during acceleration

It is important to note that these symptoms may vary depending on the specific vehicle make and model.


What causes the P007C code?

The P007C fault code on cars is caused by a problem in the charge air cooler temperature sensor circuit on bank 1. This fault code indicates that the temperature sensor is reading a low voltage or resistance, which may be due to a faulty sensor, wiring issues, or a problem with the engine control module (ECM). It is important to diagnose and repair this issue to ensure proper engine performance and emissions control.

Possible Solutions

How to fix P007C?

P007C - Charge Air Cooler Temperature Sensor Circuit Low Bank 1

The P007C fault code indicates a problem with the charge air cooler temperature sensor circuit on Bank 1 of the engine. This code is commonly found in vehicles with turbocharged engines.

Possible Causes:

  1. Faulty charge air cooler temperature sensor
  2. Short circuit or open circuit in the sensor wiring harness
  3. Engine control unit (ECU) malfunctions

Diagnostic and Repair Steps:

  1. Start by visually inspecting the wiring harness and sensor connections. Look for any visible signs of damage or loose connections.
  2. Use a digital multimeter to check the voltage and resistance readings of the charge air cooler temperature sensor. Refer to the vehicle's service manual for the specific values.
  3. If the sensor readings are outside the normal range, replace the charge air cooler temperature sensor.
  4. If the sensor readings are within the normal range, check the wiring harness for any short circuits or open circuits. Repair or replace any damaged sections of the harness.
  5. After repairing or replacing any components, clear the fault codes using an OBD-II scanner.
  6. Test drive the vehicle to ensure that the P007C fault code does not reappear.

Note: It is recommended to consult the vehicle's service manual or seek assistance from a qualified mechanic for a more accurate diagnosis and repair process.