What does P0706 Generic: Transmission Range Sensor 'A' Circuit Range/Performance General Motors: Transmission range sensor performance Jaguar: Dual linear switch signals missing mean?
The P0706 OBD code refers to the Transmission Range Sensor 'A' Circuit Range/Performance.
This code is a generic powertrain code that applies to vehicles equipped with OBD-II.
The transmission range sensor, also known as the park/neutral switch or neutral safety switch, is responsible for informing the PCM of the position of the gear shifter and allowing the engine to start only in the park and neutral positions.
If the sensor detects an improper voltage, this code will be triggered.
It is important to address this issue immediately as it may result in the vehicle starting in gear, causing it to move unexpectedly.
Possible causes include a faulty transmission range sensor, a misadjusted sensor, or an open or shorted sensor harness.
It is uncommon for a faulty PCM to be the cause of this code.
P0706 Symptoms
- Vehicle may start in any gear position
- Lack of power, especially from a complete stop
- Vehicle may start moving upon start up
Possible P0706 Causes
- Faulty transmission range sensor
- Misadjusted transmission range sensor
- Open or shorted transmission range sensor harness
- Faulty PCM
Troubleshooting P0706 error code
- Perform a thorough visual inspection of the range sensor and wiring harness
- Repair any damage found in the range sensor and wiring harness
- If the vehicle starts in reverse/drive, unplug the range sensor and try starting it again
- If the vehicle still starts in reverse/drive, suspect a short in the harness
- If the vehicle does not start, suspect a faulty or misadjusted range sensor
