GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Transfer Code Encoder Motor


Object Number: 680636  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Transfer Case Shift Control Switch
G103 and G105
G103 and G105
G103 and G105
G103 and G105
Ign RUN and START Bus Bar
Transfer Case Shift Control Switch
B+ Bus Bar
Transfer Case Shift Control Switch
Propshaft Speed Sensors, Front Axle Vacuum Solenoid
Figure 2:

Transfer Case Shift Control Switch


Object Number: 680637  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Propshaft Speed Sensors, Front Axle Vacuum Solenoid
Transfer Code Encoder Motor
Power
CLSTR Fuse
Transfer Code Encoder Motor
Hazard Switch, Radio, Instrument Panel Cluster (IPC) And Ground
Splice Pack SP201 and Modules
Transfer Code Encoder Motor
G200 and G201
G200 and G201
Figure 3:

Propshaft Speed Sensors, Front Axle Vacuum Solenoid


Object Number: 680638  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Transfer Case Shift Control Switch
Transfer Code Encoder Motor
Transfer Code Encoder Motor
G104, G106, G107, G108 and G118
G104, G106, G107, G108 and G118
Transfer Case Control Schematic Icons
Transfer Case Control Schematic Icons
Transfer Case Control Schematic Icons
Transfer Case Control Schematic Icons
Transfer Case Control Schematic Icons