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

With Inflator


Object Number: 675140  Size: FS
Master Electrical Component List
Automatic Level Control Description and Operation
Without Inflator
RAP RELAY, Underhood Accessory Wiring Junction Block, ECM SENSE, B/U LAMP, ALT/SENSE, AIR fuses
BATT Main2, ELC/ TRAILER, RR DEFOG, RR FOG LP fuses and PWR/HEATED SEAT PSD circuit breaker
BATT Main2, ELC/ TRAILER, RR DEFOG, RR FOG LP fuses and PWR/HEATED SEAT PSD circuit breaker
G401
Trailer Wiring, Power and Ground
Figure 2:

Without Inflator


Object Number: 675154  Size: FS
Master Electrical Component List
Automatic Level Control Description and Operation
With Inflator
BATT Main2, ELC/ TRAILER, RR DEFOG, RR FOG LP fuses and PWR/HEATED SEAT PSD circuit breaker
BATT Main2, ELC/ TRAILER, RR DEFOG, RR FOG LP fuses and PWR/HEATED SEAT PSD circuit breaker
RAP RELAY, Underhood Accessory Wiring Junction Block, ECM SENSE, B/U LAMP, ALT/SENSE, AIR fuses
Trailer Wiring, Power and Ground
G401