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

Cell 38: Power and Ground


Object Number: 373269  Size: FS
Cell 10: HTD SEAT, ATC, HVAC and A/C Fuses
Power and Grounding Connector End Views
Cell 10: 4WD Fuse (4.3L)
Cell 38: Transfer Case Select Switch
Transfer Case Control Components
Transfer Case Circuit Description
Cell 38: Front Axle Clutch Solenoid and Front Axle Switch
Cell 50: Class 2 Communication (4.3L)
Handling ESD Sensitive Parts Notice
Cell 38: Front Axle Clutch Solenoid and Front Axle Switch
Transfer Case Control Connector End Views
Transfer Case Control Connector End Views
Cell 14: G205 and G206 (Utility)
Cell 86 (w/o Trip Computer)
Cell 14: G103 and G105 (4.3L)
Cell 14: Body Relay Block and Underhood Fuse Block
Cell 14: G103 and G105 (4.3L)
Cell 14: Body Relay Block and Underhood Fuse Block
Figure 2:

Cell 38: Front Axle Clutch Solenoid and Front Axle Switch


Object Number: 373273  Size: FS
Power and Grounding Connector End Views
Cell 38: Power and Ground
Transfer Case Control Components
Cell 10: CRANK and CLSTR Fuses
Transfer Case Circuit Description
Cell 38: Transfer Case Select Switch
Cell 38: Power and Ground
VCM Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Cell 30: Manual Transmission Starting
Figure 3:

Cell 38: Transfer Case Select Switch


Object Number: 373284  Size: FS
Cell 10: ILLUM, PARK LP Fuses
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Cell 10: 4WD Fuse (4.3L)
Cell 38: Power and Ground
Transfer Case Control Components
Transfer Case Circuit Description
Cell 38: Transfer Case Shift Control Module and Transfer Case Encoder Motor
Cell 38: Front Axle Clutch Solenoid and Front Axle Switch
Cell 86 (w/o Trip Computer)
Cell 117: ILLUM Fuse 12
Cell 150: BCM (Chevy/GMC)
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Cell 14: G203 and G204 (Utility w/ Manual A/C)
Cell 14: G203 and G204 (Utility w/ Manual A/C)
Cell 150: BCM (Chevy/GMC)
Figure 4:

Cell 38: Transfer Case Shift Control Module and Transfer Case Encoder Motor


Object Number: 373289  Size: FS
Transfer Case Control Connector End Views
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Transfer Case Control Components
Transfer Case Circuit Description
Cell 38: Speed Sensors
Cell 38: Transfer Case Select Switch
Figure 5:

Cell 38: Speed Sensors


Object Number: 373293  Size: FS
Transfer Case Control Connector End Views
Cell 21: Vehicle Speed Sensor
Cell 14: G104 and G117
Handling ESD Sensitive Parts Notice
Transfer Case Control Components
Transfer Case Circuit Description
Cell 38: Transfer Case Shift Control Module and Transfer Case Encoder Motor