Installation Procedure

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Important:

If the encoder motor is being replaced, ensure that the transfer case is in the neutral position. Manually shift the transfer case at the shift shaft, using a crescent wrench if necessary.
When installing the encoder motor, ensure that the encoder motor is indexed correctly and the motor is flat against the transfer case before tightening the bolts.
A NEW encoder motor does NOT come with locating pins.

Install the locating pins to the NEW encoder motor.
Position a NEW actuator insulator gasket to the transfer case.
Install the encoder motor.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Fig 1: Installing Encoder Motor, Bolts & Actuator Insulator Gasket
Courtesy of GENERAL MOTORS CORP.
Install encoder motor bolts.
Tighten

Tighten the bolts, in the sequence shown, to 20 N.m (15 lb ft).
Connect the encoder motor electrical connector (7).
Connect the transfer case switch electrical connector (2).
Install the front propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT -- FRONT in Propeller Shaft.
Install the transfer case shield, if equipped. Refer to TRANSFER CASE SHIELD REPLACEMENT .

Fig 2: Connecting Encoder Motor Electrical Connector & Transfer Case Switch Electrical Connector
Courtesy of GENERAL MOTORS CORP.