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

B+ Bus - Underhood Fuse Block - 1 of 2


Object Number: 1532264  Size: FS
Master Electrical Component List
Control Module References
B+ Bus - Underhood Fuse Block - 2 of 2
B+ Bus - Underhood Fuse Block - 2 of 2
Figure 2:

B+ Bus - Underhood Fuse Block - 2 of 2


Object Number: 1532266  Size: FS
Master Electrical Component List
Control Module References
B+ Bus - Rear Fuse Block
B+ Bus - Underhood Fuse Block - 1 of 2
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 3:

B+ Bus - Rear Fuse Block


Object Number: 1532271  Size: FS
Master Electrical Component List
Control Module References
B+ Bus - Underhood Fuse Block - 1 of 2
B+ Bus - Underhood Fuse Block - 2 of 2
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 4:

ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses


Object Number: 1532272  Size: FS
Master Electrical Component List
Control Module References
AIR, EAP, ECM, PCMB, TBC 1, and TCM/CANISTER Fuses
B+ Bus - Rear Fuse Block
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 5:

AIR, EAP, ECM, PCMB, TBC1, and TCM/CANISTER Fuses


Object Number: 1532274  Size: FS
Master Electrical Component List
Control Module References
HVAC B, LGM/DSM, OH BATT/ONSTAR, and RADIO Fuses
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 6:

HVAC B, LGM/DSM, OH BATT/ONSTAR, and RADIO Fuses


Object Number: 1532277  Size: FS
Master Electrical Component List
Control Module References
AUX PWR 1, S/ROOF, TBC 2, TBC 3, TBC 4, and TBC 5 Fuses
AIR, EAP, ECM, PCMB, TBC 1, and TCM/CANISTER Fuses
B+ Bus - Rear Fuse Block
Figure 7:

AUX PWR 1, S/ROOF, TBC 2, TBC 3, TBC 4, and TBC 5 Fuses


Object Number: 1532280  Size: FS
Master Electrical Component List
Control Module References
AMP, DDM, PDM Fuses, LT DOORS, RT DOORS, and SEATS Circuit Breakers
HVAC B, LGM/DSM, OH BATT/ONSTAR, and RADIO Fuses
B+ Bus - Rear Fuse Block
Figure 8:

AMP, DDM, PDM, Fuses, LT DOORS, RT DOORS, and SEATS Circuit Breakers


Object Number: 1532284  Size: FS
Master Electrical Component List
Control Module References
FRT PRK, LGM #2, LR PRK, RR PRK, TRLR PRK Fuses and REAR WPR Circuit Breaker
AUX PWR 1, S/ROOF, TBC 2, TBC 3, TBC 4, and TBC 5 Fuses
B+ Bus - Rear Fuse Block
Figure 9:

FRT PRK, LGM #2, LR PRK, RR PAK, TRLR PRK Fuses and REAR WPR Circuit Breakers


Object Number: 1532287  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGNA1 Fuse
AMP, DDM, PDM Fuses, LT DOORS, RT DOORS, and SEATS Circuit Breakers
B+ Bus - Rear Fuse Block
Figure 10:

Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars, and IGNA1 Fuse


Object Number: 1532298  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGNB1 Fuse
FRT PRK, LGM #2, LR PRK, RR PRK, TRLR PRK Fuses and REAR WPR Circuit Breaker
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 11:

Ignition Switch - ACCY/RUN, RUN/START Bus Bars, and IGNB1 Fuse


Object Number: 1532324  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGNB1 Fuse
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGNA1 Fuse
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 12:

ENG 1, INJ A, INJ B, 02A, 02B, and TAC Fuses - 5.3L


Object Number: 1532355  Size: FS
Master Electrical Component List
Control Module References
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGNB1 Fuse
B+ Bus - Underhood Fuse Block - 2 of 2
Figure 13:

BACK UP, BTSI, IGN E, and TRLR B/U Fuses


Object Number: 1532357  Size: FS
Master Electrical Component List
Control Module References
AIR SOL and PCMI Fuses
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGNB1 Fuse
AIR SOL and PCMI Fuses
B+ Bus - Underhood Fuse Block - 2 of 2
Figure 14:

AIR SOL and PCMI Fuses


Object Number: 1532407  Size: FS
Master Electrical Component List
Control Module References
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
Figure 15:

ECMI, ENG1, 02, SIR, TAC and TRANS Fuses


Object Number: 1532426  Size: FS
Master Electrical Component List
Control Module References
4WD, BRK, FRT WPR, HVACI, IGN0, and TCM Fuses
AIR SOL and PCMI Fuses
AIR SOL and PCMI Fuses
SIR Caution for Zoning
Figure 16:

4WD, BRK, FRT WPR, HVACI, IGNO, and TCM Fuses


Object Number: 1532442  Size: FS
Master Electrical Component List
Control Module References
COILS, HDM, HI HDLP-LT, HI HDLP-RT, LH HDLP, LOW HDLP-LT, LOW HDLP-RT, RH HDLP, TRL L TRN, and TRL R TRN
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
B+ Bus - Rear Fuse Block
Figure 17:

COILS, HDM, HI HDLP-LT, HI HDLP-RT, LH HDLP, LOW HDLP-LT, LOW HDLP-RT, RH HDLP, TRL L TRN, and TRL R TRN Fuses


Object Number: 1532469  Size: FS
Master Electrical Component List
Control Module References
FL TRN, FR TRN, RL TRN, and RR TRN Fuses
4WD, BRK, FRT WPR, HVACI, IGN0, and TCM Fuses
B+ Bus - Underhood Fuse Block - 1 of 2
Figure 18:

FL TRN, FR TRN, RL TRN, and RR TRN Fuses


Object Number: 1532489  Size: FS
Master Electrical Component List
Control Module References
COILS, HDM, HI HDLP-LT, HI HDLP-RT, LH HDLP, LOW HDLP-LT, LOW HDLP-RT, RH HDLP, TRL L TRN, and TRL R TRN