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

Power, Ground and Data Link Connector (DLC)


Object Number: 541003  Size: FS
Transfer Case Control Components
Transfer Case Control Module Description
Electric Shift Transfer Case
Power and Grounding Connector End Views
B+ Bus Bar
INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses
CTSY LP Fuse, Courtesy Lamp Relay and Courtesy Lamps
CTSY LP Fuse, Courtesy Lamp Relay and Courtesy Lamps
Handling ESD Sensitive Parts Notice
G205 and G206
Figure 2:

Electric Shift Transfer Case


Object Number: 541006  Size: FS
Transfer Case Control Components
Transfer Case Control Module Description
Transfer Case Shift Control Switch
Power, Ground and Data Link Connector (DLC)
Handling ESD Sensitive Parts Notice
Figure 3:

Transfer Case Shift Control Switch


Object Number: 541007  Size: FS
Transfer Case Control Components
Transfer Case Control Module Description
4WD Indicator Switch and Vehicle Control Module (VCM)
Electric Shift Transfer Case
ILLUM Fuse 12
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
SRS Schematic
RAP, IGN B Fuses and Ignition Switch
ILLUM, RDO IGN and RDO BATT Fuses and VSS Signal
Handling ESD Sensitive Parts Notice
G203 and G204
Handling ESD Sensitive Parts Notice
4WD Indicator Switch and Vehicle Control Module (VCM)
Figure 4:

4WD Indicator Switch and Vehicle Control Module (VCM)


Object Number: 541011  Size: FS
Transfer Case Control Components
Transfer Case Control Module Description
Transfer Case Shift Control Switch
B+ Bus Bar
Power and Grounding Connector End Views
Transfer Case Shift Control Switch
CRANK and CLSTR Fuses
Cruise Control Module and PCM/VCM
VCM Connector End Views
Vehicle Speed Outputs, 4WD High Indicator Signal, 4WD Indicator Switch
Handling ESD Sensitive Parts Notice
Class 2 Communication
Handling ESD Sensitive Parts Notice