Transmission Position Sensor/Switch: Service and Repair

4R70E/4R75E

Digital Transmission Range (TR) Sensor

Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.

2. NOTICE: To prevent selector lever cable damage, do not apply force to the selector lever cable between the manual control lever and the selector lever cable bracket.

Disconnect the selector lever cable end.

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

4. NOTICE: Discard the manual control lever shaft outer nut. Do not reuse. The old nut will not retain the torque specification.

Remove the manual control lever.

1. Remove and discard the manual control lever outer nut.

2. Remove the manual control lever.

5. Remove the TR sensor bolts and 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 bolt before tightening the other may cause the sensor to bind or become damaged.

Tighten the bolts in an alternating sequence.

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

4. Install the manual control lever.

1. Position the manual control lever.

2. Install a new manual control lever outer nut.
- Tighten to 33 Nm (24 lb-ft).

5. Connect the TR sensor connector.

6. NOTICE: To prevent selector lever cable damage, do not apply force to the selector lever cable between the manual control lever and the selector lever cable bracket.

NOTE: When installing the selector lever cable end, make sure that the selector lever cable end is correctly installed onto the manual control lever. Pull back on the selector lever cable end to make sure that the selector lever cable end is correctly installed onto the manual control lever.

Connect the selector lever cable end to the manual control lever with the lever in the (D) position.