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

B+ Bus Bar - 1 of 2


Object Number: 1829921  Size: FS
Master Electrical Component List
Control Module References
B+ Bus Bar - 2 of 2
B+ Bus Bar - 2 of 2
B+ Bus Bar - 2 of 2
Figure 2:

B+ Bus Bar - 2 of 2


Object Number: 1829923  Size: FS
Master Electrical Component List
Control Module References
LT HI BEAM, LT LO BEAM, RT HI BEAM, RT LO BEAM Fuses, and DRL, HI BEAM, and LO BEAM Relays
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
Figure 3:

LT HI BEAM, LT LO BEAM, RT HI BEAM, RT LO BEAM Fuses, and DRL, HI BEAM, and LO BEAM Relays


Object Number: 1829925  Size: FS
Master Electrical Component List
Control Module References
ABS, BCK/UP LAMP, CAN VENT, ECM/TRANS, I/P IGN, and OUTLET Fuses, and RUN/CRNK Relay (Underhood Fuse Block), AIRBAG, EPS/STR WHL CNTRL, HVAC/IP IGN, and WPR Fuses (Body Control Module (BCM))
B+ Bus Bar - 2 of 2
B+ Bus Bar - 1 of 2
Figure 4:

ABS, BCK/UP LAMP, CAN VENT, ECM/TRANS, I/P IGN, and OUTLET Fuses, and RUN/CRNK Relay (Underhood Fuse Block), AIRBAG, EPS/STR WHL CNTRL, HVAC/IP IGN, and WPR Fuses (Body Control Module (BCM))


Object Number: 1829927  Size: FS
Master Electrical Component List
Control Module References
DLC, ECM, EMISSIONS, INJ IGN MDL, and TURBO Fuses, PWR/TRN Relay
LT HI BEAM, LT LO BEAM, RT HI BEAM, RT LO BEAM Fuses, and DRL, HI BEAM, and LO BEAM Relays
B+ Bus Bar - 1 of 2
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Figure 5:

DLC, ECM, EMISSIONS, INJ IGN MDL, and TURBO Fuses, PWR/TRN Relay


Object Number: 1829931  Size: FS
Master Electrical Component List
Control Module References
ABS, MIR, and S BAND ONSTAR/RKE Fuses and PWR SEATS Circuit Breaker (Underhood Fuse Block)
ABS, BCK/UP LAMP, CAN VENT, ECM/TRANS, I/P IGN, and OUTLET Fuses, and RUN/CRNK Relay (Underhood Fuse Block), AIRBAG, EPS/STR WHL CNTRL, HVAC/IP IGN, and WPR Fuses (Body Control Module (BCM))
B+ Bus Bar - 2 of 2
B+ Bus Bar - 1 of 2
Low Speed LAN
Figure 6:

ABS, MIR, and S BAND ONSTAR/RKE Fuses


Object Number: 1829935  Size: FS
Master Electrical Component List
Control Module References
BCM Fuse (Underhood Fuse Block), DR LCK, ECM/TCM, INT LIGHT, PWR WNDW, RDO, and SDM Fuses, DOOR LOCK PCB , DOOR UNLOCK PCB, DR DOOR UNLOCK PCB, INADVERTENT LOAD CONTROL PCB, and RAP Relays (BCM)
DLC, ECM, EMISSIONS, INJ IGN MDL, and TURBO Fuses, PWR/TRN Relay
B+ Bus Bar - 2 of 2
Figure 7:

BCM Fuse (Underhood Fuse Block), DR LCK, ECM/TCM, INT LIGHT, PWR WNDW, RDO, and SDM Fuses, DOOR LOCK PCB , DOOR UNLOCK PCB, DR DOOR UNLOCK PCB, INADVERTENT LOAD CONTROL PCB , AND RAP Relays (Body Control Module (BCM))


Object Number: 1829938  Size: FS
Master Electrical Component List
Control Module References
BCM 2 and BCM 3 Fuses (Underhood Fuse Block), AMP, CLSTR, HVAC/PK3+, and IGN SW/PK3+ Fuses, HVAC Relay (Body Control Module (BCM))
ABS, MIR, and S BAND ONSTAR/RKE Fuses and PWR SEATS Circuit Breaker (Underhood Fuse Block)
B+ Bus Bar - 2 of 2
Power and Grounding Schematic Icons
Figure 8:

BCM 2 and BCM 3 Fuses (Underhood Fuse Block), AMP, CLSTR, HVAC/PK3+, and IGN SW/PK3+ Fuses, HVAC Relay (Body Control Module (BCM))


Object Number: 1829941  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch
BCM Fuse (Underhood Fuse Block), DR LCK, ECM/TCM, INT LIGHT, PWR WNDW, RDO, and SDM Fuses, DOOR LOCK PCB , DOOR UNLOCK PCB, DR DOOR UNLOCK PCB, INADVERTENT LOAD CONTROL PCB, and RAP Relays (BCM)
B+ Bus Bar - 2 of 2
Ignition Switch
Figure 9:

Ignition Switch


Object Number: 1829944  Size: FS
Master Electrical Component List
Control Module References
BCM 2 and BCM 3 Fuses (Underhood Fuse Block), AMP, CLSTR, HVAC/PK3+, and IGN SW/PK3+ Fuses, HVAC Relay (Body Control Module (BCM))
BCM 2 and BCM 3 Fuses (Underhood Fuse Block), AMP, CLSTR, HVAC/PK3+, and IGN SW/PK3+ Fuses, HVAC Relay (Body Control Module (BCM))
Figure 1:

B+ Bus Bar - 1 of 2


Object Number: 1871290  Size: FS
Master Electrical Component List
Control Module References
B+ Bus Bar - 2 of 2
B+ Bus Bar - 2 of 2
B+ Bus Bar - 2 of 2
Figure 2:

B+ Bus Bar - 2 of 2


Object Number: 1871299  Size: FS
Master Electrical Component List
Control Module References
BEAM, LH HI BEAM, RH HI BEAM, and PARK LAMPS Fuses
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
B+ Bus Bar - 1 of 2
Figure 3:

LT LO BEAM, RT LO BEAM, LT HI BEAM, RT HI BEAM, and BCK/UP LAMP Fuses


Object Number: 1871303  Size: FS
Master Electrical Component List
Control Module References
TANK VENT, OUTLET, IP IGN, BACKUP, ABS, and ECM TRANS Fuses
B+ Bus Bar - 2 of 2
B+ Bus Bar - 1 of 2
Figure 4:

ABS, AIRBAG, CAN VENT, ECM/TRANS, EPS/STR WHL CNTRL, HVAC/IP IGN, I/P IGN, OUTLET, and WPR Fuses


Object Number: 1871307  Size: FS
Master Electrical Component List
Control Module References
EMISSIONS, ECM, and LIGHTER Fuses
BEAM, LH HI BEAM, RH HI BEAM, and PARK LAMPS Fuses
B+ Bus Bar - 1 of 2
Data Communication Schematic Icons
Data Communication Schematic Icons
Figure 5:

DLC, ECM, EMISSIONS, INJ IGN MDL, and TURBO Fuses


Object Number: 1871310  Size: FS
Master Electrical Component List
Control Module References
MIRRORS, ABS, ABS/BCM, and S-BAND ONSTAR Fuses
TANK VENT, OUTLET, IP IGN, BACKUP, ABS, and ECM TRANS Fuses
B+ Bus Bar - 1 of 2
Figure 6:

ABS 40A, ABS 20A, COOLING FAN, MIR, PWR SEATS CB, and RKE Fuses


Object Number: 1871315  Size: FS
Master Electrical Component List
Control Module References
WINDOWS, DOOR LKS, INT LPS, ECM/TCM, RADIO, and SDM Fuses
EMISSIONS, ECM, and LIGHTER Fuses
B+ Bus Bar - 1 of 2
Figure 7:

BCM, DR LCK, ECM/TCM, INT LIGHT, PWR WNDW, RDO, and SDM Fuses


Object Number: 1871319  Size: FS
Master Electrical Component List
Control Module References
HVAC/PK3, AUDIO AMPLIFIER, WIPERS, HVAC/IP IGN, RESRAINTS, and EPS/SWC Fuses
HVAC/PK3, AUDIO AMPLIFIER, WIPERS, HVAC/IP IGN, RESRAINTS, and EPS/SWC Fuses
B+ Bus Bar - 1 of 2
SIR Schematic Icons
Figure 8:

AMP, BCM 2, BCM 3, CLSTR, IGN SW/PK3+, and HVAC/PK3+ Fuses


Object Number: 1871326  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch Modes
WINDOWS, DOOR LKS, INT LPS, ECM/TCM, RADIO, and SDM Fuses
B+ Bus Bar - 1 of 2
Ignition Switch Modes
Figure 9:

Ignition Switch Modes


Object Number: 1871330  Size: FS
Master Electrical Component List
Control Module References
HVAC/PK3, AUDIO AMPLIFIER, WIPERS, HVAC/IP IGN, RESRAINTS, and EPS/SWC Fuses
HVAC/PK3, AUDIO AMPLIFIER, WIPERS, HVAC/IP IGN, RESRAINTS, and EPS/SWC Fuses