GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Tahoe - 2WD 🢒 Suspension 🢒 Automatic Level Control 🢒 Automatic Level Control Schematics
Figure 1:

Compressor Motor Control
Object Number: 1243369 Size: FS
Master Electrical Component List
Automatic Level Control Description and Operation
Suspension Level Control
Ignition Switch - START, and RUN Bus Bars
IGN 3 Fuse - 1 of 2
IGN 3 Fuse - 1 of 2
B+ Bus - 1 of 2
ABS, VSES/ECAS, STUD #1, STUD #2, TBC BATT Fuses
G401, G402
Figure 2:

Suspension Level Control
Object Number: 1243370 Size: FS
Master Electrical Component List
Automatic Level Control Description and Operation
Compressor Motor Control
B+ Bus - 1 of 2
RTD, RR WPR, EAP, SUNROOF Fuses
Suspension Position Sensors