What is OBD-II Code P071C – Transmission Mode Switch A Circuit High?
When it comes to diagnosing issues with vehicles, the Onboard Diagnostic (OBD) system is an invaluable tool. OBD-II code P071C – Transmission Mode Switch A Circuit High is a code that may appear on the OBD-II system. The OBD-II system is fitted in all cars manufactured after 1996.
For the average person, this code might sound like a technical jargon, something that’s best left to seasoned mechanics. However, it is important to understand what this means and how it affects your vehicle. In this article, we will be discussing OBD-II Code P071C – Transmission Mode Switch A Circuit High, what it means, how it is diagnosed, and how it can be repaired.
What is OBD-II?
The OBD-II system is an electronic system that monitors the performance and health of your vehicle. It is a set of diagnostic protocols that can read, interpret and communicate codes to the vehicle’s computer. The system works by detecting faults and errors in various systems of the vehicle.
The OBD-II system has the capability to generate several codes, namely, P0xxx, P1xxx, P2xxx, P3xxx. P0xxx consists of generic powertrain codes such as P071C, which means transmission mode switch A circuit high. These codes are generated when there is an issue with the vehicle’s systems and components, alerting the driver and technician to a potential problem.
What Does Code P071C Mean?
Code P071C specifically refers to the transmission mode switch A circuit high. The transmission mode switch is a four-position switch – park, reverse, neutral, and drive – that allows the driver to select the transmission mode. The switch may be located on the shift lever or the steering column.
When the transmission mode switch A circuit voltage is high, it indicates an issue with the transmission mode switch. A high voltage may be caused by a short circuit within the circuit. This, in turn, can have an impact on the vehicle’s overall performance and efficiency.
Diagnosing code P071C
To diagnose code P071C, a skilled mechanic with adequate knowledge of OBD-II is required. The mechanic will first connect a diagnostic scanner to the vehicle’s OBD-II system, which will generate a code. Once the code is generated, the mechanic will perform a visual inspection of the transmission mode switch, check the wiring and connections, and perform a circuit test.
The circuit test verifies if there is continuity in the circuit, and if the voltage is within the normal range, meaning no shorts or opens in the circuit. If the voltage is outside the normal range, the mechanic will replace the transmission mode switch to rectify the issue.
Repairing code P071C
To repair code P071C, the mechanic will need to first locate the transmission mode switch. This may require them to disassemble the console or steering column, depending on the make and model of the vehicle. Once the switch is located, they will verify that the circuit is disconnected and replace the switch.
Once the switch is replaced, the mechanic will need to clear the trouble codes from the OBD-II system. This is done by connecting the scanner to the OBD-II system and erasing the code. The mechanic will then test drive the vehicle to ensure that the issue has been resolved.
Frequently Asked Questions
1. What causes code P071C?
Code P071C is generally caused by a short circuit in the transmission mode switch circuitry.
2. Can I drive my car with code P071C?
Driving your vehicle with code P071C is not recommended as it can cause further damage to your vehicle’s transmission and engine.
3. How long does it take to repair code P071C?
The time it takes to repair code P071C will depend on several factors, including the make and model of the vehicle, and the location of the transmission mode switch.
4. How much does it cost to repair code P071C?
The cost of repairing code P071C will depend on the make and model of your vehicle, and the severity of the issue. However, expect to spend anywhere from $100 to $500.
5. Can I repair code P071C myself?
Repairing code P071C by yourself is not recommended as it requires specialized knowledge and tools to ensure safety and effectiveness. It is important to consult with a reputable mechanic to ensure that the issue is properly diagnosed and repaired.
Conclusion
In this article, we’ve discussed OBD-II Code P071C – Transmission Mode Switch A Circuit High, what it means, how it is diagnosed, and how it can be repaired. It is important to understand that diagnosing and repairing your vehicle requires expertise and specialized knowledge. It is always recommended to seek the advice of a reputable mechanic when dealing with any issues related to your vehicle. By understanding your vehicle’s OBD-II system, and the codes generated by it, you can ensure timely and effective repairs, leading to increased safety, reliability, and efficiency on the road.
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