How To Replace Transmission Range Sensor

Transmission position sensors permit the figurer and driver know what gear the vehicle is in. This sensor is vital to take and makes driving a vehicle more than secure and prophylactic.

The two types of electronic transmissions are:

• Mechanical/electronic shift transmissions
• Shift past wire transmissions

A mechanical/electronic shift manual has a cable or linkage that connects the shifter handle to the main valve on the transmission. The manual however has electronic shift solenoids to shift the gears in the transmission without any mechanical device. The benefits of having a mechanical/electronic shift transmission is that the commuter is in control with the shifter in the cab. All the same, the downside is that the driver tin accidentally put the transmission in park or reverse while driving forward at great speeds.

A shift by wire transmission has a wire that sends a voltage reference to an electronic shifter from the shifter handle. This system is tied into the reckoner system and is monitored every micro second. The do good of having a shift by wire transmission is that the figurer is in control and not the driver. This eliminates the driver from accidentally placing the transmission in park or reverse during forrad motion. However, if a wire was to be burned or a fuse was to burn, then the vehicle will not shift and volition default to a neutral position making the vehicle unusable.

Part one of 7: Empathise the signs of transmission position sensor failure

If the manual position sensor fails, it can brand the vehicle unusable in many different ways. The well-nigh common ways are non letting the engine kickoff upward, keeping the vehicle from moving, or from keeping the transmission from shifting gears.

The engine light codes related to transmission position sensor are:

• P0700
• P0701
• P0702
• P0705
• P0706
• P0707
• P0708
• P0709
• P0780
• P0864

Office 2 of vii: Check the condition of the transmission position sensor

Step 1: Put the transmission shifter in the park position. Endeavor to start upwardly the vehicle. If the engine starts up, try to put the manual in gear. If the transmission volition not go into gear or it is sluggish in drive, then the sensor has failed.

Step 2: If the engine started, shut it off. Place the shifter into a gear and attempt to kickoff the engine up. If the engine starts with the manual in gear, then the sensor has failed.

Part 3 of 7: Prepare to supplant the manual position sensor

Materials Needed

• Allen wrench set
• Boxed end wrenches
• Wink low-cal
• Floor jack
• Jack stands
• Flat tip screwdriver
• Protective gloves
• Protective clothing
• Ratchet westward/metric and standard sockets
• Condom glasses
• Torques bit set
• Bicycle chocks

Footstep ane: Park your vehicle on a flat, difficult surface. Make sure that the transmission is in park manner (for automatics) or in 1st gear (for manuals).

Pace ii: Secure the wheels. Identify bicycle chocks around the tires that will remain on the footing. In this case, place the wheel chocks around the front tires since the rear of the vehicle will be lifted upward.

Engage the parking restriction to the lock the rear tires from moving.

Step 3: Install a nine volt battery saver into your cigarette lighter. This will go along your reckoner live and keep your setting current in the vehicle. If you do non have a nine volt battery saver, you can skip this step.

Step 4: Disconnect the battery. Open the vehicle's hood and disconnect the automobile's battery. Take the ground cablevision off the battery's negative post to disable the ability going to the ignition organization and fuel arrangement.

• Annotation: Information technology is important to protect your easily. Make sure to put on protective gloves prior to removing any battery terminals.

Step 5: Raise the vehicle. Using a floor jack that is recommended for the weight of the vehicle, lift the vehicle at its specified jacking points until the wheels are completely off the basis.

• Annotation: It is always best to follow the recommendations given in the possessor's manual of your vehicle and use the jack at the proper jacking points for your vehicle.

Step 6: Place the jack stands. The jack stands should go under the jacking point locations. And so lower the vehicle onto the jack stands.

• Tip: For most modernistic cars, the jacking points for jack stands will be on the pinch weld simply under the doors forth the bottom of the auto.

Part iv of seven: Remove the transmission position sensor (switch)

Stride 1: Take safety precautions. Put on protective clothing, oil resistant gloves, and rubber glasses.

Step 2: Locate the transmission position sensor. Grab a creeper, flashlight, and tools for the job.

Go nether the vehicle and locate the manual position sensor (switch).

Step 3: Remove the harness from the sensor. If you have a mechanical shifter, you will need to remove the linkage from the transmission.

Step 4: Remove the sensor. Remove the mounting bolts that secure the sensor to the transmission. Use a large flat screwdriver and lightly pry the sensor off the transmission.

Pace 5: Clean the harness connector. Use electric cleaner to make clean out the harness connector. This helps remove any debris and moisture that could cause future problems.

Part 5 of seven: Install the new transmission position sensor (switch)

Footstep 1: Take out the new sensor. Put the new sensor onto the transmission.

Step 2: Install the mounting bolts to the sensor. Tighten them down manus tight. Torque the bolts to 8 foot-pounds.

• Notation: Practise non over tighten the bolts or you will scissure the new sensor.

Footstep 3: Plug in the harness to the sensor. If you had to remove a shifter linkage, install the shifter linkage.

• Note: Keep in mind that if there are any cotter pins, you volition need to replace them with new ones. Onetime cotter pins will become work harden and break.

Part half-dozen of seven: Lower the vehicle and claw upwardly the battery

Step 1: Clear upward your tools. Collect all tools and your creeper and place them out of the way.

Footstep ii: Heighten the vehicle. Using a floor jack that is recommended for the weight of the vehicle, lift under the vehicle at its specified jacking points until the wheels are completely off the ground.

Step three: Remove the jack stands. Remove the jack stands and continue them far away from the vehicle.

Footstep four: Lower the vehicle. Lower the vehicle to where all four wheels are on the ground. Pull out the jack and put it aside.

Step 5: Reconnect the battery. Open the vehicle'due south hood. Reconnect the ground cablevision back onto the battery's negative post.

Remove the nine volt battery saver from the cigarette lighter.

Tighten up the battery clamp to ensure that the connexion is proficient.

• Note: If y'all did not use a nine volt battery saver, you lot will accept to reset all of the settings in your vehicle, similar your radio, electrical seats, and electric mirrors.

Step half dozen: Remove the wheel chocks. Remove the bike chocks from the rear wheels and put them aside.

Role 7 of 7: Test drive the vehicle

Materials Needed

• Flashlight

Step 1: Drive the vehicle effectually the cake. While you are driving around, check to come across if the engine light will come back on. Besides, cheque and brand sure that the manual is shifting correctly.

Step two: Check the harness nether the vehicle. When you are washed with the test drive, grab a flashlight and look under the vehicle. Make certain that harness is free from whatsoever obstacles and that the linkage is tight.

If your engine light comes dorsum on after replacing the transmission position sensor, then further diagnosis of the transmission position sensor circuitry is necessary.

If the transmission does not shift or does not allow the engine to start upward, then the transmission shift circuitry may need to be replaced.

If the problem persists, you lot tin can ask a certified technician from YourMechanic to inspect the transmission and determine the cause of the problem.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Source: https://www.yourmechanic.com/article/how-to-replace-a-transmission-position-sensor-switch-by-marvin-sunderland

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