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

Underhood Fuse Block - B+ Bus


Object Number: 1769668  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block - RUN/CRANK Relay, I/P IGN, PRK/NEUT, HTD/SEAT/BKC/UP, ABS (10A), ECM TRANS, ABS (30A), EPS, BCM2, BCM3, FRT AUX PWR OUTLET, S-BAND Fuses
Body Control Module - RAP, DRIVER DOOR UNLOCK PCB, DOOR UNLOCK PCB, DOOR LOCK PCB, and INTERIOR LAMPS PCB Relays, RDO, PWR WINDW, DR LCK, INT LIGHT, ECM/TCM, SDM, S ROOF and SPARE Fuses
Figure 2:

Underhood Fuse Block - RUN/CRANK Relay, I/P IGN, PRK/NEUT, HTD/SEAT/BCK/UP, ABS (10A), ECM TRANS, FRT AUX PWR OUTLET, ABS (30A), EPS, BCM 2, BCM3, S-BAND Fuses


Object Number: 1769713  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block - L/GATE RELEASE, PWR/TRN Relays, L/GATE/S ROOF, EXH, INJ IGN MOD, and ECM Fuses
Underhood Fuse Block - B+ Bus
Underhood Fuse Block - B+ Bus
Figure 3:

Underhood Fuse Block - L/GATE RELEASE, PWR/TRN Relays, L/GATE/S ROOF, EXH, INJ IGN MOD and ECM Fuses


Object Number: 1769719  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block - LOW BEAM, HIGH BEAM, DRL Relays, HTD SEAT, DRL, RT LO BEAM, LT LO BEAM, LT HI BEAM, RT HI BEAM Fuses
Underhood Fuse Block - RUN/CRANK Relay, I/P IGN, PRK/NEUT, HTD/SEAT/BKC/UP, ABS (10A), ECM TRANS, ABS (30A), EPS, BCM2, BCM3, FRT AUX PWR OUTLET, S-BAND Fuses
Underhood Fuse Block - B+ Bus
Figure 4:

Underhood Fuse Block - LOW BEAM, HIGH BEAM, DRL Relays, HTD SEAT, DRL, RT LO BEAM, LT LO BEAM, LT HI BEAM, RT HIGH BEAM Fuses


Object Number: 1769726  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block - ABS (20A), CNSTR VENT, PWR OUTLET, REAR POWER PLUG, REAR AUX PWR OUTLET and MIR Fuses, PWR SEATS Circuit Breaker
Underhood Fuse Block - L/GATE RELEASE, PWR/TRN Relays, L/GATE/S ROOF, EXH, INJ IGN MOD, and ECM Fuses
Underhood Fuse Block - B+ Bus
Figure 5:

Underhood Fuse Block - ABS (20A), CNSTR VENT, PWR OUTLET, REAR POWER PLUG, REAR AUX PWR OUTLET and MIR Fuses and POWER SEATS Circuit Breaker


Object Number: 1769772  Size: FS
Master Electrical Component List
Control Module References
Body Control Module - RAP, DRIVER DOOR UNLOCK PCB, DOOR UNLOCK PCB, DOOR LOCK PCB, and INTERIOR LAMPS PCB Relays, RDO, PWR WINDW, DR LCK, INT LIGHT, ECM/TCM, SDM, S ROOF and SPARE Fuses
Underhood Fuse Block - LOW BEAM, HIGH BEAM, DRL Relays, HTD SEAT, DRL, RT LO BEAM, LT LO BEAM, LT HI BEAM, RT HI BEAM Fuses
Underhood Fuse Block - B+ Bus
Figure 6:

Body Control Module - RAP, DRIVER DOOR UNLOCK PCB, DOOR UNLOCK PCB, DOOR LOCK PCB, and INTERIOR LAMPS PCB Relays, RDO, PWR WINDW, DR LCK, INT LIGHT, ECM/TCM, SDM, S ROOF and SPARE Fuses


Object Number: 1769805  Size: FS
Master Electrical Component List
Control Module References
Body Control Module - BCM2, HVAC/PK3, CLUSTER, IGN SW, STOP LPS, and AMP Fuses
Underhood Fuse Block - ABS (20A), CNSTR VENT, PWR OUTLET, REAR POWER PLUG, REAR AUX PWR OUTLET and MIR Fuses, PWR SEATS Circuit Breaker
Underhood Fuse Block - B+ Bus
Power and Grounding Schematic Icons
Figure 7:

Body Control Module - BCM 2, HVAC/PK3, CLUSTER, IGN SW, STOP LPS, and AMP Fuses


Object Number: 1769810  Size: FS
Master Electrical Component List
Control Module References
Body Control Module - RUN/CRANK and HVAC Relays, I/P IGN, BCM3, WPR, AIR BAG, EPS/STR WHL CNTRL and HVAC/IP IGNITION Fuses
Body Control Module - RAP, DRIVER DOOR UNLOCK PCB, DOOR UNLOCK PCB, DOOR LOCK PCB, and INTERIOR LAMPS PCB Relays, RDO, PWR WINDW, DR LCK, INT LIGHT, ECM/TCM, SDM, S ROOF and SPARE Fuses
Underhood Fuse Block - B+ Bus
Figure 8:

Body Control Module - RUN/CRANK and HVAC Relays, I/P IGN, BCM 3, WPR, AIR BAG, EPS/STR WHL CNTRL and HVAC/IP IGNITION Fuses


Object Number: 1769812  Size: FS
Master Electrical Component List
Control Module References
Body Control Module - BCM2, HVAC/PK3, CLUSTER, IGN SW, STOP LPS, and AMP Fuses
Underhood Fuse Block - B+ Bus
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons