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

Fuse Block--Underhood Bussing - 1 of 2


Object Number: 784943  Size: FS
Master Electrical Component List
Fuse Block-Underhood Bussing (2 of 2)
Fuse Block-Underhood Accessory
Fuse Block-Underhood Bussing (2 of 2)
Figure 2:

Fuse Block--Underhood Bussing - 2 of 2


Object Number: 794398  Size: FS
Master Electrical Component List
Fuse Block-Underhood Accessory
Fuse Block-Underhood Bussing (1 of 2)
Fuse Block-Underhood Bussing (1 of 2)
Figure 3:

Fuse Block-Underhood Accessory


Object Number: 784945  Size: FS
Master Electrical Component List
INADV POWER BUS/RAP, BCM, RADIO/HVAC/RFA CLUSTER/DATA LINK, RADIO AMP, and CIGAR LTR/AUX POWER/POWER DROP Fuses
Fuse Block-Underhood Bussing (2 of 2)
Fuse Block-Underhood Bussing (1 of 2)
Figure 4:

INADV POWER BUS/RAP, BCM, RADIO/HVAC/RFA/CLUSTER/DATA LINK, RADIO AMP, and CIGAR LTR/AUX POWER/POWER DROP Fuses


Object Number: 784948  Size: FS
Master Electrical Component List
HIGH BLOWER, HAZARD, STOP LAMPS, DOOR LOCKS, and POWER MIRRORS Fuses
Fuse Block-Underhood Accessory
Figure 5:

HIGH BLOWER, HAZARD, STOP LAMPS, DOOR LOCKS, and POWER MIRRORS Fuses


Object Number: 784951  Size: FS
Master Electrical Component List
ONSTAR, LH HEATED SEAT, RH HEATED SEAT Fuses, POWER SEATS Circuit Breaker, and REAR DEFOG Circuit Breaker
INADV POWER BUS/RAP, BCM, RADIO/HVAC/RFA CLUSTER/DATA LINK, RADIO AMP, and CIGAR LTR/AUX POWER/POWER DROP Fuses
Fuse Block-Underhood Bussing (1 of 2)
Figure 6:

ONSTAR, LH HEATED SEAT, RH HEATED SEAT Fuses, POWER SEATS Circuit Breaker, and REAR DEFOG Circuit Breaker


Object Number: 784955  Size: FS
Master Electrical Component List
R/CMPT RELEASE, ECM, GEN, HDLPL, and HDLPR Fuses
HIGH BLOWER, HAZARD, STOP LAMPS, DOOR LOCKS, and POWER MIRRORS Fuses
Fuse Block-Underhood Bussing (1 of 2)
Figure 7:

R/CMPT RELEASE, ECM, GEN, HDLP L, and HDLP R Fuses


Object Number: 791255  Size: FS
Master Electrical Component List
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (1of 3)
ONSTAR, LH HEATED SEAT, RH HEATED SEAT Fuses, POWER SEATS Circuit Breaker, and REAR DEFOG Circuit Breaker
Fuse Block-Underhood Bussing (1 of 2)
Figure 8:

FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses - 1 of 2


Object Number: 784956  Size: FS
Master Electrical Component List
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (3of 3)
R/CMPT RELEASE, ECM, GEN, HDLPL, and HDLPR Fuses
Fuse Block-Underhood Bussing (1 of 2)
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (3of 3)
Figure 9:

FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses - 2 of 2


Object Number: 784959  Size: FS
Master Electrical Component List
A/C COMPRESSOR CLUTCH, IGN MAIN, COOLING FAN 1, COOLING FAN 2, and COOLING FAN 3 Relays, COOL FAN 1, and COOL FAN 2, Fuses,
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (1of 3)
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (1of 3)
Instrument Panel
SIR Schematic Icons
Figure 10:

A/C COMPRESSOR CLUTCH, IGN MAIN, COOLING FAN 1, COOLING FAN 2, and COOLING FAN 3 Relays, COOL FAN 1, and COOL FAN 2 Fuses


Object Number: 784960  Size: FS
Master Electrical Component List
TRANS, ABS, and OXY SEN Fuses
FRONT PARK LAMPS, TAIL LAMPS/LIC LAMPS, and PANEL DIMMING Fuses (3of 3)
Fuse Block-Underhood Bussing (1 of 2)
TRANS, ABS, and OXY SEN Fuses
Figure 11:

TRANS, ABS, and OXY SEN Fuses


Object Number: 784964  Size: FS
Master Electrical Component List
F/INJR Fuses
A/C COMPRESSOR CLUTCH, IGN MAIN, COOLING FAN 1, COOLING FAN 2, and COOLING FAN 3 Relays, COOL FAN 1, and COOL FAN 2, Fuses,
A/C COMPRESSOR CLUTCH, IGN MAIN, COOLING FAN 1, COOLING FAN 2, and COOLING FAN 3 Relays, COOL FAN 1, and COOL FAN 2, Fuses,
F/INJR Fuses
Figure 12:

F/INJR Fuses


Object Number: 685620  Size: FS
Master Electrical Component List
POWER DROP, and WIPER Fuses, PWR WINDOWS/PWR SUNROOF Circuit Breakers
TRANS, ABS, and OXY SEN Fuses
TRANS, ABS, and OXY SEN Fuses
Figure 13:

POWER DROP, and WIPER Fuses, PWR WINDOWS/PWR SUNROOF Circuit Breakers


Object Number: 784966  Size: FS
Master Electrical Component List
BTSI, TURN SIGNALS/CORN LPS, AIR BAG, CLUSTER, and PCM/BCM/U H RELAY Fuses
F/INJR Fuses
Fuse Block-Underhood Bussing (1 of 2)
BTSI, TURN SIGNALS/CORN LPS, AIR BAG, CLUSTER, and PCM/BCM/U H RELAY Fuses
Figure 14:

BTSI, TURN SIGNALS/CORN LPS, AIR BAG, CLUSTER, and PCM/BCM/U H RELAY Fuses


Object Number: 784968  Size: FS
Master Electrical Component List
IGN 0 CLUSTER/PCM/BCM, and CRANK SIGNAL/BCM/CLUSTER Fuses
POWER DROP, and WIPER Fuses, PWR WINDOWS/PWR SUNROOF Circuit Breakers
POWER DROP, and WIPER Fuses, PWR WINDOWS/PWR SUNROOF Circuit Breakers
Figure 15:

IGN 0 CLUSTER/PCM/BCM, and CRANK SIGNAL/BCM/CLUSTER Fuses


Object Number: 784970  Size: FS
Master Electrical Component List
CRUISE SWITCH, LOW BLOWER, CRUISE, and HVAC Fuses
BTSI, TURN SIGNALS/CORN LPS, AIR BAG, CLUSTER, and PCM/BCM/U H RELAY Fuses
Fuse Block-Underhood Bussing (1 of 2)
CRUISE SWITCH, LOW BLOWER, CRUISE, and HVAC Fuses
Figure 16:

CRUISE SWITCH, LOW BLOWER, CRUISE, and HVAC Fuses


Object Number: 784971  Size: FS
Master Electrical Component List
IGN 0 CLUSTER/PCM/BCM, and CRANK SIGNAL/BCM/CLUSTER Fuses
IGN 0 CLUSTER/PCM/BCM, and CRANK SIGNAL/BCM/CLUSTER Fuses