What is OBD-II Code P07C2 – Input/Turbine Shaft Speed Sensor B Circuit High

OBD-II (On-Board Diagnostics) codes are essential in locating and diagnosing car problems. P07C2 is a diagnostic trouble code that identifies a malfunction in the Input/Turbine Shaft Speed Sensor B Circuit High. In this article, we will cover everything you need to know about P07C2, from what it means to how to repair the issue.

What is OBD-II Code P07C2 – Input/Turbine Shaft Speed Sensor B Circuit High?

The Input/Turbine Shaft Speed Sensor is a critical component in a car’s transmission system. It measures the rotational speed of the input shaft, which connects to the engine’s crankshaft. The data it collects is sent to the car’s Transmission Control Module (TCM) and Engine Control Module (ECM). Using this information, the TCM can determine the optimal timing for shifting gears. The P07C2 code indicates that there is a problem with the Input/Turbine Shaft Speed Sensor B Circuit High.

How to Identify the P07C2 Code?

When your car’s OBD-II system detects a problem with the Input/Turbine Shaft Speed Sensor B Circuit High, a code is generated. You can check for the code using a scan tool that plugs into the OBD-II connector, usually located under the dashboard. Once the tool is plugged in, it will give a numeric code, and you can look up the meaning of that code in the car’s manual or online.

Symptoms of P07C2 Code Malfunction

One of the most common symptoms of P07C2 Code is that the car’s transmission will not shift gears properly. You may notice irregular shifting, delayed shifting, or the car may not shift gears at all. Other symptoms include warning lights on the dashboard, such as the Check Engine Light, and decreased fuel economy. If left unaddressed, a malfunctioning Input/Turbine Shaft Speed Sensor may lead to further issues, including transmission failure.

Causes of P07C2 Code Malfunction

There are several reasons why a car may generate the P07C2 Code. Some of the most common causes include:

1. Faulty Input/Turbine Shaft Speed Sensor: Over time, the sensor may become damaged due to wear and tear, causing it to malfunction.

2. Wiring Issues: Frayed or damaged wires can interfere with the sensor, leading to issues with the Input/Turbine Shaft Speed Sensor B Circuit High.

3. Damaged Connectors: Similar to wiring issues, damaged connectors can cause malfunctions within the sensor by interrupting input signal flow.

4. ECU issues: When the car’s ECU or EMC malfunctions, it may send inaccurate data to the sensors, including the Input/Turbine Shaft Speed Sensor.

How to Fix P07C2 Code Malfunction?

Once you’ve identified the cause of the P07C2 Code, fixing it becomes much easier. Here are some steps you can take to repair the Input/Turbine Shaft Speed Sensor B Circuit High:

1. Check the Sensor: The very first step is to check the sensor’s condition. You can do this by visually inspecting it or checking for an open circuit using a multimeter. A faulty sensor must be replaced.

2. Check Wiring and Connectors: Ensure that the wiring is functioning correctly and that connectors are secure to rule out wiring issues.

3. Check the Transmission Control Module: Check the transmission control module for any defects like burnt wires, short circuits, blown fuses or damaged connectors. If you find any issues with the transmission control module, that essential must be fixed first along with replacement of the Input/Turbine Shaft Speed Sensor.

4. Clear the Code: Once the repair process is complete, use a scanner or disconnect the battery to clear the P07C2 code from the car’s onboard computer memory to verify if the repair process is successful.

5. Road Test: Finally, road test the car to verify that the issue is repaired, and the symptoms are gone.

Frequently Asked Questions (FAQs):

1. What happens if I ignore the P07C2 Code?

Ignoring the P07C2 code can lead to issues with your car’s transmission, resulting in further damage, and lead to more significant expenses. It is essential to address the problem promptly.

2. How much does it cost to repair Input/Turbine Shaft Speed Sensor B Circuit High?

The cost of repair depends on the type of car, the severity of the problem, the location of the repair shop, and the cost of replacement parts. On average, the cost can range from $200 to $500.

3. Can P07C2 Code Be Reset Automatically?

No, P07C2 Code cannot be reset automatically. Once the problem is fixed, you need to clear the code manually.

4. Can I drive with the P07C2 Code on?

It is not recommended to drive your car with the P07C2 code on because it can cause serious damage to your car’s transmission system.

5. Can I fix the P07C2 Code myself?

If you have the technical expertise and experience of fixing issues yourself, then you can attempt to fix the issue yourself at home. However, if you do not have the experience and knowledge, you should take your car to a professional mechanic to fix the issue


In this article, we discussed everything you need to know about OBD-II Code P07C2, from identifying the problem to fixing it. We hope that the information provided in this article helps you identify and resolve any issues related to Input/Turbine Shaft Speed Sensor B Circuit High. Remember that it is crucial to address and fix the problem promptly to avoid further damage and expenses. Consult a professional mechanic if you are not confident in fixing the issue yourself.

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