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

Underhood Fuse Block - B+ Bus


Object Number: 1782507  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Figure 2:

Underhood Fuse Block - IBCM 1, Body Control Module (BCM), AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses


Object Number: 1782510  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block RBEC 1 Fuse and Rear Fuse Block AUDIO AMP, BACK UP LP, CIG/AUX, FOLDING TOP LOGIC POWER HTD ST, RKE/XM/DVD/UGD, RR DEFOG and SUN RF Fuses and BACK UP LP and RR DEFOG Relays
Underhood Fuse Block B+
Underhood Fuse Block B+
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Figure 3:

Underhood Fuse Block RBEC 1 and Rear Fuse Block AUDIO AMP, BACK UP LP, CIG/AUX, HTD ST, RKE/XM/DVD/VGD, RR DEFOG and SUN RF Fuse


Object Number: 1782521  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block RBEC 2 Fuse and RUN RLY, BCM HVAC BLOWER HIGH and RUN Relays, HVAC BLOWER and HVAC CTRL (IGN) Fuses, Rear Fuse Block FUEL, PARK LPS and TRUNK Relays, DRV ST, EMISSION 2, FOLDING T
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Underhood Fuse Block B+
Figure 4:

Underhood Fuse Block RBEC 2, RUN RLY, Body Control Module (BCM), HVAC BLOWER HIGH Relay, RUN Relay, HVAC BLOWER, HVAC CTRL (IGN) Rear Fuse Block FUEL Relay, PARK LPS Relay, TRUNK Relay, DRV ST, EMISSION 2, FUEL, PARK LPS and TRUNK Fuses


Object Number: 1782527  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block DRL, LO/BEAM and HI/BEAM Relays, ABS, DRL, EPS, IBCM 1, IBCM 2, LT HI BEAM, LT LOW BEAM, PCM, PWR WDO CPE/CONV, RT HI BEAM, RT LOW BEAM and TCM Fuses
Underhood Fuse Block RBEC 1 Fuse and Rear Fuse Block AUDIO AMP, BACK UP LP, CIG/AUX, FOLDING TOP LOGIC POWER HTD ST, RKE/XM/DVD/UGD, RR DEFOG and SUN RF Fuses and BACK UP LP and RR DEFOG Relays
Underhood Fuse Block B+
Figure 5:

Underhood Fuse Block DRL Relay, LO/BEAM Relay, HI/BEAM Relay, ABS, DRL, EPS, IBCM 1, IBCM 2, LT HI BEAM, LTH LOW BEAM, PCM, PWR WDO CPE/CONV, RT HI BEAM, RT LOW BEAM, and TCM Fuses


Object Number: 1782533  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, PCM IGN 1 and TRANS Fuses
Underhood Fuse Block RBEC 2 Fuse and RUN RLY, BCM HVAC BLOWER HIGH and RUN Relays, HVAC BLOWER and HVAC CTRL (IGN) Fuses, Rear Fuse Block FUEL, PARK LPS and TRUNK Relays, DRV ST, EMISSION 2, FOLDING T
Underhood Fuse Block B+
Figure 6:

Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, PCM IGN 1 and TRANS Fuses


Object Number: 1782543  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Underhood Fuse Block DRL, LO/BEAM and HI/BEAM Relays, ABS, DRL, EPS, IBCM 1, IBCM 2, LT HI BEAM, LT LOW BEAM, PCM, PWR WDO CPE/CONV, RT HI BEAM, RT LOW BEAM and TCM Fuses
Underhood Fuse Block B+
Underhood Fuse Block IBCM (RUN/CRANK), BCM AIRBAG (IGN), EPS and RUN/CRANK Fuses
Figure 7:

Underhood Fuse Block A/C CLUTCH Relay, PWR/TRN Relay, A/C CLU, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses


Object Number: 1782562  Size: FS
Master Electrical Component List
Control Module References
07 G6-Underhood Fuse Block IBCM 2 Fuse, BCM ACCESSORY Relay, DOOR LOCK, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses
Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, PCM IGN 1 and TRANS Fuses
Underhood Fuse Block B+
Figure 8:

Underhood Fuse Block IBCM 2, Body Control Module (BCM) ACCESSORY Relay, DOOR LOCK, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses


Object Number: 1782585  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block IBCM (RUN/CRANK), BCM AIRBAG (IGN), EPS and RUN/CRANK Fuses
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Underhood Fuse Block B+
BCM INTERIOR LIGHTS, ONSTAR, PEDAL and POWER MIRRORS Fuses
Figure 9:

Underhood Fuse Block IBCM (RUN/CRANK) Body Control Module (BCM) AIRBAG (IGN), EPS and RUN/CRANK Fuses


Object Number: 1782599  Size: FS
Master Electrical Component List
Control Module References
BCM INTERIOR LIGHTS, ONSTAR, PEDAL and POWER MIRRORS Fuses
07 G6-Underhood Fuse Block IBCM 2 Fuse, BCM ACCESSORY Relay, DOOR LOCK, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses
Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, PCM IGN 1 and TRANS Fuses
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Power and Grounding Schematic Icons
Figure 10:

Body Control Module (BCM) INTERIOR LIGHTS, ONSTAR™, PEDAL and POWER MIRRORS Fuses


Object Number: 1782609  Size: FS
Master Electrical Component List
Control Module References
Underhood Fuse Block IBCM (RUN/CRANK), BCM AIRBAG (IGN), EPS and RUN/CRANK Fuses
07 G6-Underhood Fuse Block IBCM 2 Fuse, BCM ACCESSORY Relay, DOOR LOCK, POWER WINDOWS, ROOF/HEAT SEAT and WIPER SW Fuses