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

Power, Ground and Transfer Case Encoder Motor


Object Number: 770211  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Propshaft Speed Sensors and Front Axle Actuator
4WD, HVAC 1, and IGN 3 Fuses
4WD, HVAC 1, and IGN 3 Fuses
SEO 1, SEO 2, RR HVAC, EXP LPS, ATC, and RR WPR
Propshaft Speed Sensors and Front Axle Actuator
G100 and G110
Figure 2:

Propshaft Speed Sensors and Front Axle Actuator


Object Number: 770213  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Switch Inputs and Class 2
Power, Ground and Transfer Case Encoder Motor
Power, Ground and Transfer Case Encoder Motor
G100 and G110
Figure 3:

Switch Inputs and Class 2


Object Number: 770215  Size: FS
Master Electrical Component List
Transfer Case Description and Operation
Propshaft Speed Sensors and Front Axle Actuator
IGN 1, TURN, SEO IGN, AIR BAG, CRANK, and IGN 0 Fuses
AUX PWR and HORN Fuses
Indicators
AUX PWR and HORN Fuses
AUX PWR and HORN Fuses
HVAC Control Module/Blower Control Switch, Traction Control Switch, and Transfer Case Shift Control Switch
Splice Pack SP205
G203 - 2 of 3 - Base Except Crew Cab
G203 - 2 of 3 - Uplevel and Crew Cab
G203 - 1 of 3
G203 - 1 of 3