P0707 Transmission Range Sensor “A” Input Low

P0707 – OBD-II Trouble Code Technical Description

Trouble code P0707 is a general trouble code that indicates there is a problem with the transmission shift position sensor.

What does the fault code mean P0707?

Trouble code P0707 indicates a problem with the automatic transmission (AT) selector position sensor. This code means that the vehicle's control unit (ECU) has detected low voltage on this sensor circuit. Other transmission-related error codes may also appear along with this code.

Possible reasons

Some possible reasons for the P0707 trouble code:

• Faulty automatic transmission selector position sensor: The sensor itself may be damaged or have an electrical fault.
• Problems with wiring or connectors: A short, open, or corrosion in the wiring or connectors associated with the shift position sensor may cause the error.
• Problems with the car's electrical system: Insufficient sensor power or grounding problems may cause this error to appear.
• Malfunction of the control module (ECU): Defects or malfunctions in the control module itself may cause the sensors to trigger erroneously.
• Mechanical problems: In rare cases, problems with the automatic transmission selector mechanism can cause code P0707.

To accurately determine the cause, it is necessary to carry out diagnostics using specialized equipment and diagnostic tools, and also contact the service manual or a qualified auto mechanic.

What are the symptoms of a fault code? P0707?

Symptoms for DTC P0707 may include the following:

• Gear shifting problems: The automatic transmission may not operate properly, shift poorly, or behave erratically.
• Difficulty starting the car: It may be difficult to start the engine due to an incorrect signal from the automatic transmission selector position sensor.
• Unusual sounds or vibrations: If the automatic transmission is not operating properly, unusual sounds or vibrations may occur when the vehicle is driven.
• Errors on the dashboard: The Check Engine light on your vehicle's dashboard may illuminate, indicating a problem.
• Loss of power or poor dynamics: Incorrect operation of the automatic transmission can lead to loss of power or poor vehicle dynamics.

If you notice any of these symptoms or your check engine light comes on, it is recommended that you take it to a qualified auto mechanic for diagnosis and repair.

How to diagnose a fault code P0707?

To diagnose DTC P0707, follow these steps:

1. Checking Error Codes: Use a diagnostic tool to read error codes from the engine control module (ECU) and transmission control module (TCM). In addition to the P0707 code, also look for other error codes that may help clarify the problem.
2. Visual inspection: Inspect the wiring and connectors associated with the automatic transmission selector position sensor for damage, corrosion or breaks.
3. Checking electrical connections: Check the condition of the electrical connections associated with the automatic transmission selector position sensor, and also check their reliability and integrity.
4. Checking the automatic transmission selector position sensor: Use a multimeter to check the voltage at the selector position sensor output terminals. Make sure the voltage meets the manufacturer's specifications.
5. Checking the AKPP selector mechanism: Check the automatic transmission selector mechanism for play, wear, or other mechanical problems that could cause the position sensor to malfunction.
6. Diagnostics using a scanner: Use a diagnostic scan tool to perform tests on the transmission selector position sensor and check its signal in real time.
7. Checking Mechanical Components: If necessary, check other mechanical components of the automatic transmission, such as valves or solenoids, that may be related to the problem.

Diagnostic errors

When diagnosing DTC P0707, the following errors may occur:

• Incorrect interpretation of code: Sometimes mechanics may misinterpret the error code and start troubleshooting with the wrong component, which can lead to erroneous actions and wasted time.
• Incorrect sensor replacement: Since the code indicates a problem with the automatic transmission selector position sensor, mechanics can immediately begin replacing it without even conducting a deeper diagnosis. This may result in the working component being replaced and the root cause not being addressed.
• Ignoring other problems: When there are multiple transmission-related error codes, mechanics may focus only on the P0707 code while ignoring other problems that may also be affecting transmission performance.
• Insufficient testing of electrical components: Incomplete inspection of electrical connections or wiring may result in a misdiagnosis or missed problem.
• Failed repair interventions: Incorrect or unskilled repairs may cause additional problems and increase the difficulty of troubleshooting.

To successfully diagnose and resolve the P0707 problem, it is recommended to use professional equipment and follow the recommendations in the service manual for your specific make and model of vehicle.

How serious is the fault code? P0707?

Trouble code P0707, which indicates a problem with the automatic transmission (AT) shift position sensor, can be serious because it can cause the transmission to not operate properly. An improperly functioning transmission can affect the safety and drivability of your vehicle, and can lead to potentially costly repairs if the problem is ignored.

If the P0707 trouble code is ignored or not repaired, the following serious consequences may result:

• Loss of vehicle control: Incorrect operation of the automatic transmission can lead to loss of control over the vehicle, especially when changing gears.
• Increased transmission wear: Improper operation of the transmission can lead to increased wear and reduced service life.
• Damage to other components: A malfunctioning automatic transmission can damage other transmission components or even the engine, which may require more extensive repairs.
• Increased fuel consumption: Improper operation of the automatic transmission can lead to increased fuel consumption due to incorrect gear shifts.

Overall, a P0707 code should be considered a serious problem that requires immediate attention and diagnosis to prevent possible negative consequences.

What repair will help eliminate the code? P0707?

Resolving the P0707 trouble code may require several possible actions depending on the cause of the problem, some of them are:

1. Replacing the automatic transmission selector position sensor: If the selector position sensor is faulty or gives incorrect signals, it should be replaced with a new one. The sensor is usually located on the automatic transmission housing and can be replaced without the need to disassemble the transmission.
2. Checking and replacing electrical connections: Before replacing the sensor, you should check the condition of the electrical connections and wiring associated with it. If damage or corrosion is found, connections should be cleaned or replaced.
3. Diagnostics and repair of wiring: If a problem is found in the wiring, it requires diagnosis and, if necessary, repair or replacement of damaged areas.
4. Software update or reprogramming: In some cases, the cause of the problem may be related to the vehicle software. In such cases, a software update or reprogramming of the control module may be required.
5. Diagnostics and repair of other transmission components: If the problem is not with the shift position sensor, other automatic transmission components such as solenoids, valves or wiring may need to be diagnosed and repaired.

It is important to note that to accurately determine the cause and successfully resolve the P0707 code, it is recommended that you contact a qualified auto mechanic or service center, especially if you do not have the necessary skills or equipment to diagnose and repair.

What is P0707 Engine Code [Quick Guide]

P0707 – Brand-specific information

Trouble code P0707 refers to problems with the automatic transmission selector position sensor and can occur on various brands of cars; there are several interpretations of the P0707 code for specific brands:

• Ford, Lincoln, Mercury: Transmission Range Sensor Circuit Low Input.
• Chevrolet, GMC, Cadillac: Transmission Range Sensor Circuit Low Input.
• Toyota, Lexus: Transmission Range Sensor Circuit Low Input.
• Honda Acura: Transmission Range Sensor Circuit Low Input.
• BMW, Mini: Transmission Range Sensor Circuit Low Input.
• Volkswagen, Audi, Skoda, Seat: Transmission Range Sensor Circuit Low Input.

These are just some of the possible interpretations of the P0707 code for various car brands. It is important to consult the service manual for your specific vehicle make and model for more precise information about what this code means on your vehicle.