What Does the Engine Code P0705 Mean?

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If your car displays the engine code P0705, then there is something wrong with your transmission range sensor circuit. This means that your car will have a hard time deciphering the position of your gearshift lever and changing gears accordingly.
When your car’s Check Engine Light turns on, it could indicate all kinds of issues with your engine. To narrow down the list of potential problems, you (or your mechanic) will need to use an OBD-II scanner to read the diagnostic trouble code (DTC) associated with the problem at hand.
Each trouble code has its own warning signs, symptoms, and necessary repairs, so the car insurance comparison app Jerry is breaking it all down for you. Here’s what you need to know about the P0705 engine code.

What does the engine code P0705 mean?

The engine code P0705 indicates a problem with the transmission range sensor circuit.
When you physically move your gearshift lever from “Park” to “Drive” to “Reverse” and so on, the transmission range sensor is responsible for identifying this movement and communicating the gearshift lever’s position to the engine control module or transmission control module.

How much will it cost to fix?

Your total repair bill will depend on which parts your mechanic identifies as malfunctioning and which repairs are actually required. In general, you will likely be charged for one hour of labor for diagnosing the problem, which usually costs between $70 and $150.

What can cause the P0705 engine code?

The engine code P0705 may be triggered if the transmission range sensor stops transmitting a signal, if the signal doesn’t make sense, of if the transmission range sensor indicates that the gearshift lever is in more than one position at the same time.
This could be due to:
  • Problems with the transmission range sensor circuit system and wiring
  • Malfunctioning engine control module
  • Malfunctioning transmission control module
  • Malfunctioning transmission valve body
  • Polluted transmission fluid
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Common symptoms of the P0705 engine code

Problems with your transmission range sensor will most likely trigger the Check Engine Light. In addition, you may notice some of these symptoms:
  • The car won’t start
  • You have trouble changing gears
  • The rear lights don’t come on when you put the car in reverse

How serious is the P0705 engine code?

Depending on the side effects, this engine code isn’t necessarily a huge safety concern, but you will still need to perform any repairs promptly. You’re going to have a pretty hard time driving if you can’t change gears. 

Can I fix the P0705 engine code myself?

You may be able to fix the P0705 engine code yourself if you have the right tools. 
Once you’ve plugged in your OBD-II scanner and connected a charger to your car battery, you can use your OBD-II scanner to check the position reading that the transmission range sensor sends to the transmission control module and/or the engine control module.
If there’s an error, start off by checking the transmission fluid and changing it if necessary. 
Then, you (or a mechanic) should also inspect the linkage that runs between the gearshift lever and the gear shifter. Some of these components may need adjusting.
Other possible repairs include:
  • Adjusting the transmission range sensor
  • Replacing the transmission range sensor
  • Repairing or cleaning any damaged or corroded wires 
  • Replacing the transmission control module or engine control module

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