Transmission Position Sensor/Switch: Service and Repair

4R70E/4R75E

Digital Transmission Range (TR) Sensor





Transmission Range (TR) Sensor









Removal

1. With the vehicle in NEUTRAL, position it on a hoist.

2. Disconnect the selector lever cable.





3. Disconnect the Transmission Range (TR) sensor connector.





4. Remove the bolts and remove the TR sensor.





Installation

1. Install the TR sensor and loosely install the bolts.





2. NOTE: The manual control lever must be in the NEUTRAL position.

Using the TR Sensor Alignment Gauge, align the TR sensor slots. The tool is designed to fit snugly.





3. NOTICE: Tightening one screw before tightening the other may cause the sensor to bind or become damaged.

Tighten the screws in an alternating sequence.

- Tighten to 9 Nm (80 lb-in).





4. With the manual control lever in (D), connect the selector lever cable.
- Tighten to 30 Nm (22 lb-ft).





5. Connect the TR sensor connector.