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

Fuse Block - Underhood Bus


Object Number: 1250660  Size: FS
Master Electrical Component List
ABS 1, ABS 2, BRAKE, CONTROLS B+, COOL FAN 1, COOL FAN 2, HAZARD, and PARK LAMP Fuses
Figure 2:

ABS 1, ABS 2, BRAKE, CONTROLS B+, COOL FAN 1, COOL FAN 2, HAZARD, and PARK LAMP Fuses


Object Number: 1484829  Size: FS
Fuse Block - Underhood Bus
Master Electrical Component List
AUX POWER, BCM 2, LIGHTER, LT HEADLAMP, and RT HEADLAMP Fuses, and WDO/SUNRF Circuit Breaker
Fuse Block - Underhood Bus
Figure 3:

AUX POWER, BCM 2, LIGHTER, LT HEADLAMP, and RT HEADLAMP Fuses, and WDO/SUNRF Circuit Breaker


Object Number: 1484831  Size: FS
Master Electrical Component List
Ignition Switch and IGN 1/2, IGN 0, and IGN 0/3/CR Fuses
ABS 1, ABS 2, BRAKE, CONTROLS B+, COOL FAN 1, COOL FAN 2, HAZARD, and PARK LAMP Fuses
Fuse Block - Underhood Bus
Figure 4:

BODY, FOG LAMP, IP BATT RT, LOCKS, POWER SEAT, and PREM AUDIO Fuses


Object Number: 1429091  Size: FS
Master Electrical Component List
CD/DLC, HVAC BLOWER, IGN 3, and RADIO/ONSTAR Fuses
HTD SEAT Fuse
Fuse Block - Underhood Bus
Figure 5:

BCM CLUSTER, DEFOG LED, and REAR DEFOG Fuses


Object Number: 1452743  Size: FS
Master Electrical Component List
AC, ENGINE CNTL 1, ENGINE CNTL 2, and FUEL PUMP Fuses
CD/DLC, HVAC BLOWER, IGN 3, and RADIO/ONSTAR Fuses
Fuse Block - Underhood Bus
Figure 6:

CD/DLC, HVAC BLOWER, IGN 3, and RADIO/ONSTAR Fuses


Object Number: 1485049  Size: FS
Master Electrical Component List
BCM CLUSTER, DEFOG LED, and REAR DEFOG Fuses
BODY, FOG LAMP, IP BATT RT, LOCKS, POWER SEAT, and PREM AUDIO Fuses
Fuse Block - Underhood Bus
Figure 7:

CONTROLS IGN 1 and IGN Fuses


Object Number: 1485023  Size: FS
Master Electrical Component List
BTSI/BCM/MIRROR, RADIO, RR WIPER, and WIPER Fuses
BACKUP/TURN, BCM/ECM/CRUISE, CRUISE SW, and IGN 1 Fuses
BACKUP/TURN, BCM/ECM/CRUISE, CRUISE SW, and IGN 1 Fuses
Figure 8:

BACKUP/TURN, BCM/ECM/CRUISE, CRUISE SW, and IGN 1 Fuses


Object Number: 1458366  Size: FS
Master Electrical Component List
CONTROLS IGN 1 and IGN Fuses
Ignition Switch and IGN 1/2, IGN 0, and IGN 0/3/CR Fuses
CONTROLS IGN 1 and IGN Fuses
CONTROLS IGN 1 and IGN Fuses
SIR Caution for Zoning
SIR Caution for Zoning
Figure 9:

CONTROLS IGN 1 and IGN Fuses


Object Number: 1485023  Size: FS
Master Electrical Component List
BTSI/BCM/MIRROR, RADIO, RR WIPER, and WIPER Fuses
BACKUP/TURN, BCM/ECM/CRUISE, CRUISE SW, and IGN 1 Fuses
BACKUP/TURN, BCM/ECM/CRUISE, CRUISE SW, and IGN 1 Fuses
Figure 10:

BTSI/BCM/MIRROR, RR WIPER/SUNROOF, and WIPER Fuses


Object Number: 1429606  Size: FS
Master Electrical Component List
HTD SEAT Fuse
CONTROLS IGN 1 and IGN Fuses
Ignition Switch and IGN 1/2, IGN 0, and IGN 0/3/CR Fuses
Figure 11:

HTD SEAT Fuse


Object Number: 1485047  Size: FS
Master Electrical Component List
BODY, FOG LAMP, IP BATT RT, LOCKS, POWER SEAT, and PREM AUDIO Fuses
BTSI/BCM/MIRROR, RADIO, RR WIPER, and WIPER Fuses
Ignition Switch and IGN 1/2, IGN 0, and IGN 0/3/CR Fuses
Figure 12:

AC, FUEL PUMP, ENGINE CNTL 1, ENGINE CNTL 2, and ENGINE CNTL 3 Fuses


Object Number: 1250743  Size: FS
Master Electrical Component List
DIMMER Fuse
BCM CLUSTER, DEFOG LED, and REAR DEFOG Fuses
Fuse Block - Underhood Bus
Figure 13:

DIMMER Fuse


Object Number: 1429608  Size: FS
Master Electrical Component List
AC, ENGINE CNTL 1, ENGINE CNTL 2, and FUEL PUMP Fuses