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

B+ Bussing


Object Number: 1217190  Size: FS
Master Electrical Component List
Power Distribution (Underhood Fuse Block - RBEC Batt 1 Fuse and Feeds)
Figure 2:

Underhood Fuse Block -- RBEC Fuse, Rear Fuse Block -- Cigar/Aux Power, Sunroof, RKE/XM/DVD/UGD, Stop Lp, Rear Defog, HTD Mirror, AUX PWR, HTD Seat Fuses


Object Number: 1217196  Size: FS
Master Electrical Component List
Power Distribution (Underhood Fuse Block-Run Relay, and RBEC Batt 2)
Power Distribution (B+ Bussing)
Power Distribution (B+ Bussing)
Figure 3:

Underhood Fuse Block -- Run Relay, RBEC Batt 2 Fuses, Rear Fuse Block -- Driver Pwr Seat, Fuel Pump, Park Lamps, Trunk Release, ERLS Fuses


Object Number: 1217222  Size: FS
Master Electrical Component List
Power Distribution (PCM BATT, ABS, EPS, ICBM Batt1, ICBM Batt2 Fuses)
Power Distribution (Underhood Fuse Block - RBEC Batt 1 Fuse and Feeds)
Power Distribution (B+ Bussing)
Figure 4:

PCM Batt, ABS, EPS, ICBM Batt1, ICBM Batt2 Fuses


Object Number: 1217230  Size: FS
Master Electrical Component List
Power Distribution (Headlamp Fuses)
Power Distribution (Underhood Fuse Block-Run Relay, and RBEC Batt 2)
Power Distribution (B+ Bussing)
Figure 5:

Low Beam Lt, Low Beam Rt, High Beam Lt, High Beam Rt Fuses


Object Number: 1217234  Size: FS
Master Electrical Component List
Power Distribution (Run Crank Relay Feeds)
Power Distribution (PCM BATT, ABS, EPS, ICBM Batt1, ICBM Batt2 Fuses)
Power Distribution (B+ Bussing)
Figure 6:

Run/Crank ICBM, Transmission, Injectors, ABS, PCM IGN, IGN Fuses


Object Number: 1217240  Size: FS
Master Electrical Component List
Power Distribution (AIR, A/C Clutch, ECT IGN, ERLS#1 Fuses)
Power Distribution (Headlamp Fuses)
Power Distribution (B+ Bussing)
Figure 7:

AIR, A/C Clutch, ECT IGN, ERLS#1 Fuses


Object Number: 1217245  Size: FS
Master Electrical Component List
Power Distribution (Underhood Junction Block - ICBM Batt2 Fuse feeds)
Power Distribution (Run Crank Relay Feeds)
Power Distribution (B+ Bussing)
Figure 8:

Underhood Junction Block -- ICBM Batt2, BCM -- PWR Windows, Wiper Sw, Sunroof/HTD Seat Fuses


Object Number: 1217264  Size: FS
Master Electrical Component List
Power Distribution (Run Relay and Run/Crank Relay Feeds)
Power Distribution (AIR, A/C Clutch, ECT IGN, ERLS#1 Fuses)
Power Distribution (B+ Bussing)
Power Distribution (Int Lights, PWR Mirror, Pedal, OnStar Fuses)
Figure 9:

Underhood Junction Block -- Run Relay, Run/Crank IBCM, HVAC Blower, HVAC Head/ECC, EPS, AIR BAG IGN, Run/Crank ELEC Fuses


Object Number: 1217269  Size: FS
Master Electrical Component List
Power Distribution (Int Lights, PWR Mirror, Pedal, OnStar Fuses)
Power Distribution (Underhood Junction Block - ICBM Batt2 Fuse feeds)
Power Distribution (B+ Bussing)
Figure 10:

Interrior lights, Pwr Mirror, Pedal, OnStar Fuses


Object Number: 1217277  Size: FS
Master Electrical Component List
Power Distribution (Underhood Junction Block - ICBM Batt Fuse feeds)
Power Distribution (Run Relay and Run/Crank Relay Feeds)
Power Distribution (Underhood Junction Block - ICBM Batt2 Fuse feeds)
Figure 11:

Underhood Junction Block -- IBCM Batt 1, BCM -- Radio/RFA, Ignition Sensor, HVAC BATT, Cluster/Theft, Air Bag Batt Fuses


Object Number: 1217342  Size: FS
Master Electrical Component List
Power Distribution (Int Lights, PWR Mirror, Pedal, OnStar Fuses)
Power Distribution (B+ Bussing)