TrailBlazer 4WD L6-4.2L VIN S (2002)
5. Remove the motor/encoder assembly.
Important: When replacing the encoder rotary position sensor follow these additional steps. The rotary position sensor is circular with 3 contacts
on one side and is positioned behind the motor/encoder gasket.
6. Position the motor on a work bench.
7. Release the 4 tabs that retain the motor/encoder gasket and remove the gasket (1).
8. Remove the snap ring and washer retaining the motor/encoder rotary position sensor.
Important: Gently lift the rotary position sensor and wiring to disconnect it. The internal wires go to a connector within the motor housing. This
internal wire connector does not have a locking tab and is easily disturbed.
9. Lift the motor/encoder rotary position sensor (2) from the motor shaft.
10. Disconnect the rotary position sensor (2) from the wiring harness.
Important: Look at the motor/encoder housing (1) where the rotary position sensor was removed from. Take note of the "Hex" in the housing
where the new sensor will seat when properly installed.
Installation Procedure
Important: Provided the rotary position sensor was removed, follow steps to install the sensor, otherwise proceed to installing the motor/encoder
to the transfer case.
1. Connect the wiring harness to the rotary position sensor.
2. Gently insert a suitable tool along side the internal wires and press down on the internal wire connector to insure the connector is fully installed.
