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

Underhood Fuse Block B+ Bus


Object Number: 1483354  Size: FS
Master Electrical Component List
Control Module References
AFTERCOOL Relay, AFTERCOOL Fuse, A/C CLUTCH Relay, A/C Fuse, HORN PCB Relay, HORN Fuse, FOG LAMP PCB Relay, FOG LAMP Fuse, TRUNK/OUTLET Relay, TRUNK RELEASE PCB Relay
Figure 2:

RUN/CRANK Relay, I/P IGN Fuse, PRK/NEUT Fuse, BACKUP Fuse, ABS 10 Amp and 50 Amp Fuses, ECM TRANS Fuse, LIGHTER Fuse, CAN VENT Fuse, EPS Fuse, BCM2 Fuse, BCM3 Fuse, HEATED SEAT Fuse, S-BAND/ONSTAR Fuse, MIRROR Fuses


Object Number: 1483355  Size: FS
Master Electrical Component List
Control Module References
FUEL FUMP Relay, POWERTRAIN Relay, FUEL PMP Fuse, EMISSION Fuse, INJECTORS Fuse, PCM/ECM Fuse
AFTERCOOL Relay, AFTERCOOL Fuse, A/C CLUTCH Relay, A/C Fuse, HORN PCB Relay, HORN Fuse, FOG LAMP PCB Relay, FOG LAMP Fuse, TRUNK/OUTLET Relay, TRUNK RELEASE PCB Relay
Underhood Fuse Block B+ Bus
Figure 3:

FUEL PUMP Relay, POWERTRAIN Relay, FUEL PMP Fuse, EMISSION Fuse, INJECTORS Fuse, PCM/ECM Fuse


Object Number: 1483356  Size: FS
Master Electrical Component List
Control Module References
PARK LAMPS PCB Relay, PARK LPS Fuse, LOW BEAM PCB Relay, HI BEAM PCB Relay, RH LOW BEAM Fuse, LH LOW BEAM Fuse, RH HIGH BEAM Fuse, LH HIGH BEAM Fuse
RUN/CRANK Relay, I/P IGN Fuse, PRK/NEUT Fuse, BACKUP Fuse, ABS Fuses, ECM TRANS Fuse, LIGHTER Fuse, CAN VENT Fuse, EPS Fuse, BCM2 and 3 Fuses, HEATED SEAT Fuse, S-BAND/ONSTAR Fuse, MIRROR Fuse
Underhood Fuse Block B+ Bus
AFTERCOOL Relay, AFTERCOOL Fuse, A/C CLUTCH Relay, A/C Fuse, HORN PCB Relay, HORN Fuse, FOG LAMP PCB Relay, FOG LAMP Fuse, TRUNK/OUTLET Relay, TRUNK RELEASE PCB Relay
AFTERCOOL Relay, AFTERCOOL Fuse, A/C CLUTCH Relay, A/C Fuse, HORN PCB Relay, HORN Fuse, FOG LAMP PCB Relay, FOG LAMP Fuse, TRUNK/OUTLET Relay, TRUNK RELEASE PCB Relay
Figure 4:

AFTERCOOL Relay, AFTERCOOL Fuse, A/C CLUTCH Relay, A/C Fuse, HORN Relay, HORN Fuse, FOG LAMP Relay, FOG LAMP Fuse, TRUNK/OUTLET Fuse, TRUNK RELEASE Relay


Object Number: 1483357  Size: FS
Master Electrical Component List
Control Module References
RUN/CRANK Relay, I/P IGN Fuse, PRK/NEUT Fuse, BACKUP Fuse, ABS Fuses, ECM TRANS Fuse, LIGHTER Fuse, CAN VENT Fuse, EPS Fuse, BCM2 and 3 Fuses, HEATED SEAT Fuse, S-BAND/ONSTAR Fuse, MIRROR Fuse
Underhood Fuse Block B+ Bus
FUEL FUMP Relay, POWERTRAIN Relay, FUEL PMP Fuse, EMISSION Fuse, INJECTORS Fuse, PCM/ECM Fuse
FUEL FUMP Relay, POWERTRAIN Relay, FUEL PMP Fuse, EMISSION Fuse, INJECTORS Fuse, PCM/ECM Fuse
Figure 5:

PARK LPS PCB Relay, PARK LPS Fuse, LOW BEAM PCB Relay, HIGH BEAM PCB Relay, RH LOW BEAM Fuse, LH LOW BEAM Fuse, RH HIGH BEAM Fuse, LH HIGH BEAM Fuse


Object Number: 1483383  Size: FS
Master Electrical Component List
Control Module References
RDO Fuse, DR LCK Fuse, INT LIGHTS Fuse, PWR WNDW Fuse, S ROOF Fuse, ECM/TCM Fuse, SDM Fuse, RAP Relay, INTERIOR LAMPS PCB Relay, Door Lock PCB Relays
FUEL FUMP Relay, POWERTRAIN Relay, FUEL PMP Fuse, EMISSION Fuse, INJECTORS Fuse, PCM/ECM Fuse
Underhood Fuse Block B+ Bus
Figure 6:

RADIO Fuse, DOOR LOCK Fuse, INT LPS Fuse, POWER WINDOW Fuse, SUNROOF Fuse, ECM/TCM Fuse, SDM Fuse, RAP Relay, DR DOOR UNLOCK Relay, DOOR UNLOCK Relay, DOOR LOCK Relay, INTERIOR LAMP Relay


Object Number: 1483419  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch, BCM2 Fuse, IGN SW Fuse, STOP LPS Fuse, AUDIO AMPLIFIER Fuse, CLUSTER Fuse, HVAC/PK3 Fuse
PARK LAMPS PCB Relay, PARK LPS Fuse, LOW BEAM PCB Relay, HI BEAM PCB Relay, RH LOW BEAM Fuse, LH LOW BEAM Fuse, RH HIGH BEAM Fuse, LH HIGH BEAM Fuse
Underhood Fuse Block B+ Bus
SIR Caution for Zoning
Figure 7:

Igntion Switch, BCM2 Fuse, IGN SW Fuse, STOP LPS Fuse, AUDIO AMPLIFIER Fuse, CLUSTER Fuse, HVAC/PK3 Fuse


Object Number: 1483471  Size: FS
Master Electrical Component List
Control Module References
RUN/CRANK Relay, HVAC Relay, I/P IGN Fuse, BCM3 Fuse, WIPER Fuse, RESTRAINTS Fuse, EPS Fuse
RDO Fuse, DR LCK Fuse, INT LIGHTS Fuse, PWR WNDW Fuse, S ROOF Fuse, ECM/TCM Fuse, SDM Fuse, RAP Relay, INTERIOR LAMPS PCB Relay, Door Lock PCB Relays
Underhood Fuse Block B+ Bus
Figure 8:

RUN/CRANK Relay, HVAC Relay, I/P IGN Fuse, BCM3 Fuse, WIPER Fuse, RESTRAINTS Fuse, EPS Fuse


Object Number: 1483473  Size: FS
Master Electrical Component List
Control Module References
Ignition Switch, BCM2 Fuse, IGN SW Fuse, STOP LPS Fuse, AUDIO AMPLIFIER Fuse, CLUSTER Fuse, HVAC/PK3 Fuse
Underhood Fuse Block B+ Bus
SIR Caution for Zoning
SIR Caution for Zoning