P007D OBD Error Code: Problem & Solutions

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Always make sure that your Charge Air Cooler Temperature Sensor is working properly as per the factory specifications. Now the question which would be there in your mind is “WHY?” The answer to this is that if you will not take care of this, then OBD Code P007D would set up. The “D” in the generic code is used for the circuit where the issue is located.

Want to know what this code actually relates to? Don’t worry! We are here to help you out. An intercooler is also known as a charge air cooler and it is generally found in turbocharged or supercharged vehicles. It is because of high pressure that the air which is compressed by the turbocharger becomes extremely hot. Now the hot air would start entering the charge air cooler where it cools down. That cool air would then start entering the engine. The air which is entering as well as exiting is measured with the help of charge air cooler temperature sensor.

What causes this problem with the Charge Air Cooler Temperature Sensor Circuit High Bank 1?

• Faults in the Charge Air Cooler Temperature Sensor
• Poor wiring of the CACT (Charge Air Cooler Temperature Sensor)
• Faults in the PCM (Powertrain Control Module)

1. Engine Control Module - Are you facing OBD Error Code P007D? Don’t worry as you can fix this issue with new Engine control module. We care for our customers, that’s why we have Engine control module for every make and model.
2. Air Cooler Assembly - Common cause behind this P007D error code can be some fault in Air cooler assembly. So, it will be a good decision to replace them now.
3. Turbocharger - Engine Control Module is perfectly fine but still but having that trouble code P007D flashing? In such a situation your Turbocharger might be faulty. Why don’t you think of getting that replaced?
4. Supercharger - There can be some defects in the Supercharger due to which P007D code may come on again and again. Make sure to replace it or else you may have to face some major issues.
5. Temperature Sensor - The P007D code can also arise due to some issues in Temperature Sensor. So it is advised to replace them as soon as possible.
6. Air Cooler Sensor - Air Cooler Sensor is a very important car part. One must take care of it and you can always buy a new one from us at economical prices.
   

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P007D here:

Common Symptoms

• An illumination in the check engine light
• Vehicle will run in limp mode to protect the engine
• Decrease in engine power
• Reduction in the overall fuel economy

• Check the reference voltage side of the circuit: with the ignition on, use a digital Multimeter set to volts to check for a 5-volt reference from the PCM at one of the two charge air cooler temperature sensor terminals. If no reference signal is present, connect the meter set to ohms (with the ignition off) between the reference voltage pin on the CACT and the reference voltage pin on the PCM. If the meter reads out of limits (OL) there is an open circuit between the PCM and sensor that will need to be located and repaired. If the meter reads a numeric value, there is continuity.
• If everything is good up to this point, you'll want to check that there is 5-volts coming out of the PCM at the reference voltage terminal. If there is not a 5-volt reference from the PCM, the PCM is probably faulty.
• Check the ground side of the circuit: connect the meter set to ohms (with the ignition off) between the ground terminal on the charge air cooler temperature sensor and the ground terminal on the PCM. If the meter reads out of limits (OL) there is an open circuit between the PCM and sensor that will need to be located and repaired. If the meter reads a numeric value, there is continuity. Finally, check that the PCM has a good ground by attaching one-meter lead to the PCM ground terminal and the other to chassis ground. Once again, If the meter reads out of limits (OL) there is an open circuit between the PCM and ground that will need to be located and repaired.

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Begin by visually inspecting the charge air cooler temperature sensor and the corresponding wiring. Look for loose connections, damaged wiring, etc. Also, visually inspect the charge air cooler and ducting. If damage is found, repair as necessary, clear the code and see if it returns.

• Do some preliminary circuit testing: use a scan tool to monitor the charge air coolant temperature sensor data parameter. Disconnect the CACT sensor; the scan tool value should drop to a very low value. Next, connect a jumper wire across the terminals. If the scan tool now displays a very high temperature, the connections are sound and the ECM can recognize the input. This means the problem is most like the sensor and not a circuit or PCM problem.
• Test the sensor: disconnect the charge air cooler temperature sensor connector. Next, measure the resistance between the two sensor terminals using a digital Multimeter set to ohms. Start the engine and watch the meter value; the values should decrease smoothly as the engine warms up (check the engine temperature gauge on the dash to ensure the engine reaches operating temperature). If engine temperature increases but CACT resistance does not decrease, the sensor is faulty and should be replaced.

Common Mistakes When Diagnosing The P007D Code

• The air temperature failure should be charged
• Failure with the Powertrain Control Module
• Some problems with the wiring