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P0706 is a diagnostic trouble code (DTC) for "Transmission Range Sensor Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light is on diagnostic inspection. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P0706 code is a generic powertrain code related to the transmission. This code is non-emission related. The transmission range sensor circuit is not communicating correct data to the engine control module (ECM). This code only applies to vehicles with an automatic transmission.
Codes related to the P0706 include:
A transmission range sensor is also called a park/neutral switch or safety switch. The sensor communicates with the vehicle's transmission control module and ECM and is attached to the manual valve of the transmission.
The transmission range switch detects whether the selector lever is in park or neutral and sends the signal to the transmission control module. This is to ensure the vehicle on starts in the park and neutral position.
When a P0706 code appears, the transmission is not receiving clear data from the transmission range sensor. This mostly occurs when the vehicle is in motion and reads that the vehicle is traveling at a speed that does not match what the ECM sees as the current shift position (such as traveling at any speed when the transmission is reporting it is still in park or neutral).
Several problems may cause a P0706 code including:
Symptoms of a P0706 code may include:
A mechanic may use several methods to diagnose a P0706 trouble code, including:
Utilize an OBD-II scanner to check for a stored P0706 trouble code
Visually inspect the range sensor and wiring harness for damage
Visually inspect all wires and connectors related to the transmission range sensor and ECM for damage
Determine if the vehicle will start while in the reverse shift position or drive shift position
Clear codes, test drive the vehicle to see if code reappears
Check for circuits continuity and resistance
At times, a P0706 code is the result of an engine misfire or driveline problem. Always check for any other stored codes that could be the ultimate cause of the problem before replacing parts unnecessarily.
Because the vehicle’s operation could suffer and the transmission may go into “limp” mode, the P0706 code is considered potentially serious, and it is recommended that you take your vehicle to your local mechanic for diagnosis and repair as soon as possible.
Several repairs can fix a P0706 trouble code and include:
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