Guide To P0072 OBD Error Code Solutions

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The power control module as well as the ambient air temperature sensor both work together as a team to make sure that the ambient air temperature does not reach to the levels which are higher than the intake air temperature. If this thing happens, then all the information would be sent to the PCM by the ambient air temperature sensor and which would then sore the P0072 fault code. There would be an illumination of the check engine light which would act as an alert for the car driver of some issue in the car engine.

The P0072 error code indicates that the powertrain control module has received some abnormal signal from the ambient air temperature sensor. Generally, the main symptom of this condition is the illumination of the service engine soon lamp. There can be some instances where the electronic climate control system would be disabled.

What causes this problem with the Ambient Air Temperature Sensor Circuit Low Input?

• The signal circuit to the AAT sensor might be opened up
• The ground circuit to the AAT sensor can be opened up
• There can be some faults in the AAT sensor
• Some sort of failure in the power control module

1. Powertrain Control Module - Faulty PCM can easily distorted engine timing causing frequent halting. Find all the Powertrain related parts with us.
2. Intake Air Temperature - Faulty Intake Air Temperature will not be able to maintain the proper air to fuel ratio and enable proper functioning of the engine. Buy quality air intake kits from us.
3. Indicator Light - OBD Error Code P0072 can simply be due to faulty Indicator Light. Replace old and damage components now!
4. Air Conditioning - Did your mechanic just found out that there is some fault in the Air Conditioning? Buy top notch Air Conditioning parts from us at economical prices.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P0072 code by listing some important symptoms like bad running engine, decrease in the power of engine and many more. Have a look at them below:

Common Symptoms

• The malfunction indicator light might be turned on
• The car air conditioning system may not be functioning properly
• There can be some issues with the instrument cluster as it may not read the outside temperatures properly
• The outside temperatures are not correctly read by the overhead console

• There can be some wires which must be broken or shorted, so you must get them repaired or replaced it needed
• The situation of corrosion might appear, so you must clear the electric circuitry as well as connector
• The ambient air temperature sensor should be replaced

However, if you face any issue then you can always visit us. We have stocked a wide range of best priced instrument cluster, air conditioner compressor, air conditioner fan and coolant temperature and a lot more to help you out in fixing your car.

• An OBD-II scanner is used by the technician to get information from the PCM about why the Check Engine Light is on.
• The technician would be able to record freeze frame data about the trouble codes that have been stored by the PCM with the help of OBD-II scanner
• If the P0072 trouble code is present, then the technician will have to inspect the ambient air temperature sensor to make sure that there is no debris covering the sensor.
• The wires and connector for shorts, opens, wires that are bare, and corrosion in the connector should be inspected by the technician.
• If it is needed, then these components will be repaired or replaced and the technician will clear the trouble code and a test drive should be conducted to see if the P0072 trouble code returns
• Now if you find out that the P0072 trouble code does not return, the ambient air temperature sensor error has been resolved and then there is no need to replace the sensor
• But if the P0072 trouble code returns immediately, then the ambient air sensor should be replaced.
• If the code takes some time before it returns again, then this would mean there can be an intermittent problem with the voltage going to the PCM, which would need further diagnosis.
• It is very race that if these diagnostic steps have not resolved the P0072 ambient air temperature sensor trouble code, then there are chances that power control module has some problem

Common Mistakes When Diagnosing the P0072 Code

Most of the people directly get their ambient air temperature sensor replaced whenever the P0072 trouble code shoots up, but their first step is to actually inspect the wiring and connector. If the technicians would start following up this first step of diagnosis, then it would prevent to get an ambient air temperature sensor replaced which is in perfect condition.