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

B+ Bus Bar


Object Number: 548856  Size: FS
Power and Grounding Components
IGN C, IGN A Fuses and Ignition and Start Switch
G100, G101, G106, G107, G108 and G110
Engine Controls Connector End Views
Figure 2:

IGN C, IGN A Fuses and Ignition and Start Switch


Object Number: 548858  Size: FS
Power and Grounding Components
RAP, IGN B Fuses and Ignition Switch
B+ Bus Bar
B+ Bus Bar
Power and Grounding Connector End Views
Figure 3:

RAP, IGN B Fuses and Ignition Switch


Object Number: 548861  Size: FS
Power and Grounding Components
STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch
IGN C, IGN A Fuses and Ignition and Start Switch
B+ Bus Bar
Power and Grounding Connector End Views
Figure 4:

STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch


Object Number: 548863  Size: FS
Power and Grounding Components
STUD 2, ABS and TBC Fuses
RAP, IGN B Fuses and Ignition Switch
B+ Bus Bar
Power and Grounding Connector End Views
IGN C, IGN A Fuses and Ignition and Start Switch
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Body Control System Connector End Views
Figure 5:

STUD 2, ABS and TBC Fuses


Object Number: 548866  Size: FS
Power and Grounding Components
INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses
STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch
B+ Bus Bar
Power and Grounding Connector End Views
Antilock Brake System Connector End Views
Handling ESD Sensitive Parts Notice
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Figure 6:

INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses


Object Number: 548868  Size: FS
Power and Grounding Components
AUX PWR, RDO BATT, HDLP SW Fuses and Inadvertent Power Lamp Relay
STUD 2, ABS and TBC Fuses
B+ Bus Bar
Power and Grounding Connector End Views
AUX PWR, RDO BATT, HDLP SW Fuses and Inadvertent Power Lamp Relay
AUX PWR, RDO BATT, HDLP SW Fuses and Inadvertent Power Lamp Relay
Figure 7:

AUX PWR, RDO BATT, HDLP SW Fuses and Inadvertent Power Lamp Relay


Object Number: 548873  Size: FS
Power and Grounding Components
ATC, HVAC and A/C Fuses
INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses
INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses
INT BATT, PWR LKS, CTSY LP and CIGAR LTR Fuses
Handling ESD Sensitive Parts Notice
Entertainment Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 8:

ATC, HVAC and A/C Fuses


Object Number: 548878  Size: FS
Power and Grounding Components
MIR/LKS, FOG LP, LT HDLP, and RT HDLP Fuses
AUX PWR, RDO BATT, HDLP SW Fuses and Inadvertent Power Lamp Relay
Power and Grounding Connector End Views
B+ Bus Bar
Handling ESD Sensitive Parts Notice
Figure 9:

MIR/LKS, FOG LP, LT HDLP, and RT HDLP Fuses


Object Number: 548879  Size: FS
Power and Grounding Components
ECM B, HORN, HTD MIR Fuses, Horn and Fuel Pump Relays
ATC, HVAC and A/C Fuses
B+ Bus Bar
Power and Grounding Connector End Views
Power Door Systems Connector End Views
Power Door Systems Connector End Views
Figure 10:

ECM B, HORN, HTD MIR Fuses, Horn and Fuel Pump Relays


Object Number: 548880  Size: FS
Power and Grounding Components
PARK LP, ILLUM Fuses, Park Lamp and Headlamp Grounding Relays
MIR/LKS, FOG LP, LT HDLP, and RT HDLP Fuses
Power and Grounding Connector End Views
B+ Bus Bar
Powertrain Control Module Connector End Views
Handling ESD Sensitive Parts Notice
VCM Connector End Views
Handling ESD Sensitive Parts Notice
Figure 11:

PARK LP, ILLUM Fuses, Park Lamp and Headlamp Grounding Relays


Object Number: 548881  Size: FS
Power and Grounding Components
ILLUM Fuse Power
ECM B, HORN, HTD MIR Fuses, Horn and Fuel Pump Relays
Headlamp Switch, Ambient Light Sensor and BCM
Power and Grounding Connector End Views
ILLUM Fuse Power
Power Door Systems Connector End Views
Power Door Systems Connector End Views
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
FR PRK, LR PRK, and RR PRK Fuses
Figure 12:

ILLUM Fuse Power


Object Number: 548883  Size: FS
Power and Grounding Components
FR PRK, LR PRK, and RR PRK Fuses
PARK LP, ILLUM Fuses, Park Lamp and Headlamp Grounding Relays
PARK LP, ILLUM Fuses, Park Lamp and Headlamp Grounding Relays
Entertainment Connector End Views
HVAC Connector End Views
HVAC Connector End Views
Handling ESD Sensitive Parts Notice
SRS Service Precautions
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Handling ESD Sensitive Parts Notice
Figure 13:

FR PRK, LR PRK, and RR PRK Fuses


Object Number: 548885  Size: FS
Power and Grounding Components
CRANK and CLSTR Fuses
ILLUM Fuse Power
PARK LP, ILLUM Fuses, Park Lamp and Headlamp Grounding Relays
Power and Grounding Connector End Views
Figure 14:

CRANK and CLSTR Fuses


Object Number: 548886  Size: FS
Power and Grounding Components
TURN, SIR and GAUGES Fuses
FR PRK, LR PRK, and RR PRK Fuses
Power and Grounding Connector End Views
IGN C, IGN A Fuses and Ignition and Start Switch
Transfer Case Control Connector End Views
Handling ESD Sensitive Parts Notice
Shift Lock Control Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Powertrain Control Module Connector End Views
VCM Connector End Views
Handling ESD Sensitive Parts Notice
Figure 15:

TURN, SIR and GAUGES Fuses


Object Number: 548887  Size: FS
Power and Grounding Components
IGN E, RDO IGN Fuses and Power Window Circuit Breaker
CRANK and CLSTR Fuses
IGN C, IGN A Fuses and Ignition and Start Switch
Handling ESD Sensitive Parts Notice
SRS Service Precautions
Handling ESD Sensitive Parts Notice
SRS Service Precautions
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 16:

IGN E, RDO IGN Fuses and Power Window Circuit Breaker


Object Number: 548888  Size: FS
Power and Grounding Components
B/U LP, VEH B/U and BTSI Fuses
TURN, SIR and GAUGES Fuses
RAP, IGN B Fuses and Ignition Switch
IGN C, IGN A Fuses and Ignition and Start Switch
Power and Grounding Connector End Views
RAP, IGN B Fuses and Ignition Switch
Entertainment Connector End Views
Handling ESD Sensitive Parts Notice
Power Door Systems Connector End Views
Power Door Systems Connector End Views
Figure 17:

B/U LP, VEH B/U and BTSI Fuses


Object Number: 548889  Size: FS
Power and Grounding Components
ENG I and OXYSEN Fuses
IGN E, RDO IGN Fuses and Power Window Circuit Breaker
IGN C, IGN A Fuses and Ignition and Start Switch
Shift Lock Control Connector End Views
Power and Grounding Connector End Views
Handling ESD Sensitive Parts Notice
Figure 18:

ENG I and OXYSEN Fuses


Object Number: 548895  Size: FS
Power and Grounding Components
ECM I Fuse
IGN E, RDO IGN Fuses and Power Window Circuit Breaker
IGN C, IGN A Fuses and Ignition and Start Switch
Power and Grounding Connector End Views
Figure 19:

ECM I Fuse


Object Number: 548896  Size: FS
Power and Grounding Components
HVAC I, FRT WPR and ABS Fuses
ENG I and OXYSEN Fuses
IGN C, IGN A Fuses and Ignition and Start Switch
Power and Grounding Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Engine Controls Connector End Views
Powertrain Control Module Connector End Views
VCM Connector End Views
Figure 20:

HVAC I, FRT WPR and ABS Fuses


Object Number: 548898  Size: FS
Power and Grounding Components
4WD Fuse
ECM I Fuse
RAP, IGN B Fuses and Ignition Switch
RAP, IGN B Fuses and Ignition Switch
RAP, IGN B Fuses and Ignition Switch
HVAC Connector End Views
HVAC Connector End Views
Handling ESD Sensitive Parts Notice
Antilock Brake System Connector End Views
Figure 21:

4WD Fuse


Object Number: 548899  Size: FS
Power and Grounding Components
HVAC and CRUISE Fuses
HVAC I, FRT WPR and ABS Fuses
RAP, IGN B Fuses and Ignition Switch
VCM Connector End Views
Handling ESD Sensitive Parts Notice
Transfer Case Control Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 22:

HVAC and CRUISE Fuses


Object Number: 548900  Size: FS
Power and Grounding Components
VECHMSL Fuse and CHMSL Relay
4WD Fuse
RAP, IGN B Fuses and Ignition Switch
HVAC Connector End Views
HVAC Connector End Views
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 23:

VECHMSL Fuse and CHMSL Relay


Object Number: 548901  Size: FS
Power and Grounding Components
RT TURN and RT TRN Fuses
HVAC and CRUISE Fuses
STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch
Power and Grounding Connector End Views
Handling ESD Sensitive Parts Notice
Figure 24:

RT TURN and RT TRN Fuses


Object Number: 548903  Size: FS
Power and Grounding Components
LT TURN and LT TRN Fuses
VECHMSL Fuse and CHMSL Relay
STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch
Power and Grounding Connector End Views
Figure 25:

LT TURN and LT TRN Fuses


Object Number: 548904  Size: FS
Power and Grounding Components
RT TURN and RT TRN Fuses
STOP LP, HAZ LP, TURN Fuses and Turn and Hazard Switch
Power and Grounding Connector End Views