P070E OBD Error Code: Problem & Solutions

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If you have issues with your vehicle’s transmission fluid level sensor and if you are facing shifting issues and some transmission performance problems, then the chances are that you have developed OBD Error Code P070E with your vehicle. This is a generic error code and applies to all OBD-II vehicles, though the methods to correct them may vary. To know more about this error code and have deeper knowledge on the same, go through our subsequent sections.

A warning light will be set by your vehicle’s transmission fluid level sensor (TFL) when the transmission fluid falls below a specific level. A reference voltage is also received by the TFL from the PCM. PCM is responsible for monitoring the circuit and indicating whenever the switch is opened due to low fluid level. PCM will set this error code P070E when it detects intermittent or erratic transmission fluid level sensor circuit.

What causes this problem with the Transmission Fluid Level Sensor Circuit intermittent/Erratic?

• Transmission fluid level sensor that is faulty will cause this problem
• Low levels of transmission fluid will lead to this problem
• Wiring problems with the transmission system
• Malfunctioning PCM (powertrain control module)

1. Transmission Fluid Level Sensor - Is your PCM flashing error code P070E? Now you can get the problem fixed by checking and replacing the transmission fluid level sensor. Search from a huge selection of auto parts on our website to find the transmission fluid level sensor best suited to your car.
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If you are facing OBD error code P070E, then there are significant common symptoms that can be felt or observed. We have worked out a list here to help you out in understanding this problem better.

Common Symptoms

• Transmission fluid warning light might start flashing
• Flashing of check engine light (CEL)
• Performance problems with the transmission

We have listed out some ways which would help you to correct the occurrence of OBD Code P070E. They are mentioned here as follows:

• Faulty transmission fluid level sensor needs to undergo replacement
• Repair or replace all the damaged transmission and ignition parts
• If the powertrain control module is faulty or facing any reprogramming error then you will need to either repair and fix it or replace it altogether
• Also, do check for the transmission fluid level, if its low then you will need to fix it

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Here are some steps which you should follow in order to diagnose this fault code:

Start your diagnosis by checking the transmission fluid level and also the transmission fluid level sensor and all the related wirings. In case you come across any faulty wirings or connection such as loose connectors, corroded connectors etc., then repairing them is definitely a good idea. Also, do refer to the technical service bulletin for information regarding the related issues. In case you do not find anything then you will need to conduct a step by step inspection of your transmission system. You can also refer to the manufacturer’s diagnostic flow chart in order to test the system efficiently.

Checking the wiring system

To start with, we strongly recommend you to inspect the relating wirings before you commence further. Also refer to the factory wiring diagrams in order to understand what wires are what.

Checking the reference voltage

You will also need to check the reference voltage side of the circuit while keeping the ignition on. After this you will need to use a digital voltmeter to check the PCM reference voltage which should be somewhere between 5 to 12 volts. To be able to do this you will have to connect the negative meter lead to ground and connect the negative meter lead to ground and the positive meter lead to the sensor B+ terminal on harness side of the connector. In case you come across out of limit (OL) condition then there might be an open circuit between the PCM and the sensor that you will need to repair after locating it. There will exist continuity if the meter reads numeric value. In a situation where everything is good so far, you will need to check for the power coming out of the PCM. In order to do so you will have firstly turn on the ignition and set the meter to DC volts.

Checking ground side of the voltage

In order to check the ground side of the voltage you will have to connect the reference voltage terminal on the PCM to the positive meter lead and ground to the negative lead. In case you come across no reference voltage from the PCM, then in that case your PCM is at fault. But the chances of the PCM going bad is quite rare, so we recommend you to do a double check. Next, with the ignition off check the ground side of the circuit for continuity by using a digital multimeter set to ohms. To do so connect the meter between the chassis ground and transmission fluid level sensor ground terminal. There will be an open circuit between the PCM and the sensor if you happen to come across the out of limit reading.

Check the Sensor

Now, if everything seems to be fine then it the sensor that is faulty. So, checking it is next on our list. Turn off the ignition and set your multimeter to read ohms. Lastly, remove the transmission fluid level sensor connector and connect the meter to the sensor terminals. The sensor will be open internally of the meter reads out of limits (0L), you should definitely replace it in this case.