Toyota Code P0705, or the Transmission Range Sensor Circuit Malfunction (PRNDL Input) is a common issue for Toyota vehicles. It is a difficult problem to diagnose and understand, as it is caused by a variety of issues, including a park/neutral position switch, transmission control switch, open or short in park/neutral position switch circuit, or ECM. As an owner of a Toyota vehicle, it is important to be aware of this code and the potential issues it can cause, as it can be a costly repair if not done correctly. Being proactive and understanding the potential causes and solutions of this problem can help make the repair process easier and more cost-effective.
Causes and Solutions for Toyota Code P0705
| Cause | Solution |
| Park/neutral position switch | Replace the switch |
| Transmission control switch (Lower shift lever assembly) | Replace the switch or assembly |
| Open or short in park/neutral position switch circuit | Repair the circuit |
| ECM | Reprogram or replace the ECM |
Park/neutral Position Switch
The most common cause of Toyota Code P0705 is a faulty park/neutral position switch. This switch is located on the transmission and is responsible for sending a signal to the ECM to indicate when the vehicle is in park or neutral. If the switch is faulty, it will cause the ECM to throw a code and the vehicle will not be able to shift properly. The best solution is to replace the switch with a new one.
Transmission Control Switch
The transmission control switch, also known as the lower shift lever assembly, is another potential cause of the Toyota Code P0705. This switch is responsible for sending a signal to the ECM to indicate when the vehicle is in park or neutral. If the switch is faulty, it will cause the ECM to throw a code and the vehicle will not be able to shift properly. The best solution is to replace the switch or the entire assembly.
Open or Short in Park/Neutral Position Switch Circuit
If the park/neutral position switch is functioning correctly, the next potential cause of Toyota Code P0705 is an open or short in the park/neutral position switch circuit. An open or short in the circuit can be caused by a faulty connection or a bad wiring harness. The best solution is to repair the circuit by checking all connections and replacing any faulty wiring.
ECM
The last potential cause of Toyota Code P0705 is a faulty ECM. If the problem is not caused by any of the other issues mentioned above, it is likely due to a faulty ECM. The best solution is to reprogram or replace the ECM.
Conclusion
Being aware of and understanding the potential causes and solutions of the Toyota Code P0705 is essential for the owners of Toyota vehicles. As this code can be caused by a variety of issues, it is important to be proactive and investigate all potential causes in order to find the best solution. By understanding the potential causes and solutions of the Toyota Code P0705, owners of Toyota vehicles can ensure that the repair process is easier and more cost-effective.
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