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

B+ Bus - Underhood Fuse Block


Object Number: 1673848  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
ABS1, ABS2, AUX, CAN VENT, CIGAR, CLUSTER, DOOR LOCK, ONSTAR, PCM B, RADIO, STOP, and TCCM Fuses
Figure 2:

ABS 1, ABS 2, AUX, CAN VENT, CIGAR, CLUSTER, DOOR LOCK, ONSTAR, PCM B, RADIO, STOP, and TCCM Fuses


Object Number: 1673850  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
A/C, BLOWER, DOOR LOCK, HTD SEAT, ONSTAR, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Figure 3:

A/C, BLOWER, DOOR LOCK, HTD SEAT, ONSTAR, TBC, TURN/HAZ FR, and TURN /HAZ RR Fuses


Object Number: 1673851  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
Ignition Switch and IGN TRANS D Fuse
ABS1, ABS2, AUX, CAN VENT, CIGAR, CLUSTER, DOOR LOCK, ONSTAR, PCM B, RADIO, STOP, and TCCM Fuses
B+ Bus - Underhood Fuse Block
Figure 4:

RUN/CRANK Relay Bus - 1 of 3, CRUISE, SIR, and TRANS Fuses


Object Number: 1673858  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
RUN/CRANK RELAY BUS - 2 of 3, CRUISE, SIR, and TRANS Fuses
A/C, BLOWER, DOOR LOCK, HTD SEAT, ONSTAR, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
B+ Bus - Underhood Fuse Block
RUN/CRANK RELAY BUS - 2 of 3, CRUISE, SIR, and TRANS Fuses
SIR Caution for Zoning
Figure 5:

RUN/CRANK Relay Bus - 2 of 3, ABS, BACKUP, and IGN Fuses


Object Number: 1673859  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
RUN/CRANK RELAY BUS - 3 of 3, CRUISE, SIR, and TRANS Fuses
RUN/CRANK RELAY BUS - 1 of 3, CRUISE, SIR, and TRANS Fuses
RUN/CRANK RELAY BUS - 1 of 3, CRUISE, SIR, and TRANS Fuses
RUN/CRANK RELAY BUS - 3 of 3, CRUISE, SIR, and TRANS Fuses
Figure 6:

RUN/CRANK Relay Bus - 3 of 3, ERLS, FRT AX, INJECTOR, and PCM I Fuses


Object Number: 1673861  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
ETC, O2 SENSOR, PWR/WINDOW, SUNROOF, and WIP/WASH Fuses
RUN/CRANK RELAY BUS - 2 of 3, CRUISE, SIR, and TRANS Fuses
RUN/CRANK RELAY BUS - 2 of 3, CRUISE, SIR, and TRANS Fuses
Figure 7:

ETC, 02 SENSOR, PWR/WINDOW, SUNROOF, and WIP/WASH Fuses


Object Number: 1673863  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
FUEL PMP, LH HDLP, and RH HDLP Fuses
RUN/CRANK RELAY BUS - 3 of 3, CRUISE, SIR, and TRANS Fuses
B+ Bus - Underhood Fuse Block
Figure 8:

FUEL PMP, LH HDLP, and RH HDLP Fuses


Object Number: 1673875  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
FR PK LP, RR PK LP, and RR PK LP2 Fuses
ETC, O2 SENSOR, PWR/WINDOW, SUNROOF, and WIP/WASH Fuses
B+ Bus - Underhood Fuse Block
Figure 9:

FR PK LP, RR PK LP, and RR PK LP 2 Fuses


Object Number: 1673879  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
Ignition Switch and IGN TRANS D Fuse
FUEL PMP, LH HDLP, and RH HDLP Fuses
B+ Bus - Underhood Fuse Block
Figure 10:

Ignition Switch and IGN TRANS D Fuse


Object Number: 1673854  Size: FS
Master Electrical Component List
Body Control Module (BCM) Programming/RPO Configuration
FR PK LP, RR PK LP, and RR PK LP2 Fuses
B+ Bus - Underhood Fuse Block