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

B+ Bus Bar


Object Number: 743810  Size: FS
Master Electrical Component List
IGNITION, RUN, and START Bus Bar
Figure 2:

IGNITION, RUN, and START Bus Bar


Object Number: 743814  Size: FS
Master Electrical Component List
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
B+ Bus Bar
Figure 3:

IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses


Object Number: 743816  Size: FS
Master Electrical Component List
STOP, TURN, and HAZARD Bus Bars
IGNITION, RUN, and START Bus Bar
Figure 4:

STOP, TURN, and HAZARD Bus Bars


Object Number: 743818  Size: FS
Master Electrical Component List
B/U LP, BTSI, VEH B/U - 1 of 2, and TRL B/U Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
B+ Bus Bar
IGNITION, RUN, and START Bus Bar
Figure 5:

B/U LP, BTSI, VEH B/U - 1 of 2, and TRL B/U Fuses


Object Number: 743822  Size: FS
Master Electrical Component List
HTD MIR, RR DEFOG Fuses, and RR DEFOG Relay
STOP, TURN, and HAZARD Bus Bars
IGNITION, RUN, and START Bus Bar
VEH STOP Fuse - 2 of 2 and VEH B/U Fuse - 2 of 2
Figure 6:

HTD MIR, RR DEFOG, Fuses and RR DEFOG Relay


Object Number: 743824  Size: FS
Master Electrical Component List
ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses
B/U LP, BTSI, VEH B/U - 1 of 2, and TRL B/U Fuses
B+ Bus Bar
Figure 7:

ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses


Object Number: 743826  Size: FS
Master Electrical Component List
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
HTD MIR, RR DEFOG Fuses, and RR DEFOG Relay
B+ Bus Bar
INT PRK Fuse - 1 of 2
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
INT PRK Fuse - 1 of 2
Figure 8:

FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays


Object Number: 743828  Size: FS
Master Electrical Component List
INT PRK Fuse - 1 of 2
ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses
ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses
LR PRK and RR PRK Fuses - Tahoe, Yukon, Suburban, and Yukon XL
LR PRK and RR PRK Fuses - Avalanche and 4WD Escalade
LR PRK and RR PRK Fuses - Escalade EXT and 2WD Escalade
B+ Bus Bar
Figure 9:

INT PRK Fuse - 1 of 2


Object Number: 743831  Size: FS
Master Electrical Component List
INT PRK Fuse - 2 of 2
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses
ABS, HAZ LP, STUD 1, STUD 2, CTSY LP, and PARK LP Fuses
INT PRK Fuse - 2 of 2
Figure 10:

INT PRK Fuse - 2 of 2


Object Number: 743834  Size: FS
Master Electrical Component List
LT TURN AND RT TURN Fuses - Tahoe/Yukon/Suburban/Yukon XL
INT PRK Fuse - 1 of 2
INT PRK Fuse - 1 of 2
Figure 11:

LT TURN and RT TURN Fuses - Tahoe, Yukon, Suburban, and Yukon XL


Object Number: 743839  Size: FS
Master Electrical Component List
LT TURN AND RT TURN Fuses - Escalade w/4WD and Avalanche
INT PRK Fuse - 2 of 2
Figure 12:

LT TURN and RT TURN Fuses - Escalade w/4WD and Avalanche


Object Number: 743841  Size: FS
Master Electrical Component List
LT TURN and RT TURN Fuses - Escalade 2WD and Escalade EXT
LT TURN AND RT TURN Fuses - Tahoe/Yukon/Suburban/Yukon XL
Figure 13:

LT TURN and RT TURN Fuses - Escalade 2WD and Escalade EXT


Object Number: 743843  Size: FS
Master Electrical Component List
TRL L TRN, TRL R TURN, VEH STOP - 1 of 2, and CHMSL Fuses
LT TURN AND RT TURN Fuses - Escalade w/4WD and Avalanche
IGNITION, RUN, and START Bus Bar
Figure 14:

TRL L TURN, TRL R TURN, VEH STOP - 1 of 2, and CHMSL Fuses


Object Number: 816207  Size: FS
Master Electrical Component List
VEH STOP Fuse - 2 of 2 and VEH B/U Fuse - 2 of 2
LT TURN and RT TURN Fuses - Escalade 2WD and Escalade EXT
VEH STOP Fuse - 2 of 2 and VEH B/U Fuse - 2 of 2
Figure 15:

VEH STOP Fuse - 2 of 2 and VEH B/U Fuse - 2 of 2


Object Number: 816211  Size: FS
Master Electrical Component List
LR PRK and RR PRK Fuses - Tahoe, Yukon, Suburban, and Yukon XL
TRL L TRN, TRL R TURN, VEH STOP - 1 of 2, and CHMSL Fuses
B/U LP, BTSI, VEH B/U - 1 of 2, and TRL B/U Fuses
TRL L TRN, TRL R TURN, VEH STOP - 1 of 2, and CHMSL Fuses
Figure 16:

LR PRK and RR PRK Fuses - Tahoe, Yukon, Suburban, and Yukon XL


Object Number: 816214  Size: FS
Master Electrical Component List
LR PRK and RR PRK Fuses - Avalanche and 4WD Escalade
VEH STOP Fuse - 2 of 2 and VEH B/U Fuse - 2 of 2
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
Figure 17:

LR PRK and RR PRK Fuses - Avalanche and 4WD Escalade


Object Number: 816216  Size: FS
Master Electrical Component List
LR PRK and RR PRK Fuses - Escalade EXT and 2WD Escalade
LR PRK and RR PRK Fuses - Tahoe, Yukon, Suburban, and Yukon XL
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
Figure 18:

LR PRK and RR PRK Fuses - Escalade EXT and 2WD Escalade


Object Number: 816217  Size: FS
Master Electrical Component List
IGN 1, SEO IGN, and AIR BAG Fuses
LR PRK and RR PRK Fuses - Avalanche and 4WD Escalade
FR PRK, TRL PRK, HORN Fuses, FOG LAMP and HORN Relays
Figure 19:

IGN 1, SEO IGN, and AIR BAG Fuses


Object Number: 816219  Size: FS
Master Electrical Component List
O2 B, O2 A, ENG 1, and IGN E Fuses
LR PRK and RR PRK Fuses - Escalade EXT and 2WD Escalade
O2 B, O2 A, ENG 1, and IGN E Fuses
IGNITION, RUN, and START Bus Bar
Figure 20:

02B, 02A, ENG 1, and IGN E Fuses


Object Number: 816220  Size: FS
Master Electrical Component List
SEO 1, SEO 2, and AUX PWR Fuses
IGN 1, SEO IGN, and AIR BAG Fuses
IGN 1, SEO IGN, and AIR BAG Fuses
Figure 21:

SEO 1, SEO 2, and AUX PWR Fuses


Object Number: 816221  Size: FS
Master Electrical Component List
RR HVAC, EXP LPS, ATC, and RR WPR B Fuses
O2 B, O2 A, ENG 1, and IGN E Fuses
B+ Bus Bar
Figure 22:

RRHVAC, EXP LPS, ATC, and RR WPR B Fuses


Object Number: 816222  Size: FS
Master Electrical Component List
RTD, RDO AMP, CRANK, and IGN 0 Fuses
SEO 1, SEO 2, and AUX PWR Fuses
B+ Bus Bar
Figure 23:

RTD, RDO AMP, CRANK, and IGN 0 Fuses


Object Number: 816223  Size: FS
Master Electrical Component List
AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses
RR HVAC, EXP LPS, ATC, and RR WPR B Fuses
B+ Bus Bar
Figure 24:

AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses


Object Number: 816224  Size: FS
Master Electrical Component List
ECM 1, ETC, INJ A and INJ B Fuses
RTD, RDO AMP, CRANK, and IGN 0 Fuses
B+ Bus Bar
Figure 25:

ECM 1, ETC, INJ A, and INJ B Fuses


Object Number: 816225  Size: FS
Master Electrical Component List
Ignition Coils
AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses
B+ Bus Bar
IGNITION, RUN, and START Bus Bar
Ignition Coils
Ignition Coils
Figure 26:

Ignition Coils


Object Number: 816227  Size: FS
Master Electrical Component List
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
ECM 1, ETC, INJ A and INJ B Fuses
ECM 1, ETC, INJ A and INJ B Fuses
ECM 1, ETC, INJ A and INJ B Fuses
Figure 27:

TBC, FOG LP, LT HDLP, and RT HDLP Fuses


Object Number: 816229  Size: FS
Master Electrical Component List
IGN 3 Fuse
Ignition Coils
B+ Bus Bar
B+ Bus Bar
Figure 28:

IGN 3 Fuse


Object Number: 816230  Size: FS
Master Electrical Component List
Rear HVAC
TBC, FOG LP, LT HDLP, and RT HDLP Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
Rear HVAC
Figure 29:

Rear HVAC


Object Number: 816231  Size: FS
Master Electrical Component List
4WD and HVAC I Fuses
IGN 3 Fuse
IGN 3 Fuse
Figure 30:

4WD and HVAC 1 Fuses


Object Number: 816232  Size: FS
Master Electrical Component List
BRAKE, CRUISE, HTR A/C, RR WPR, WS WPR, and SEO ACCY Fuses
Rear HVAC
IGNITION, RUN, and START Bus Bar
Figure 31:

BRAKE, CRUISE, HTR A/C, RR WPR, WS WPR and SEO ACCY Fuses


Object Number: 816234  Size: FS
Master Electrical Component List
PWR WDO Circuit Breakers, RDO I and RAP #2 Fuses
4WD and HVAC I Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
Figure 32:

PWR WDO Circuit Breakers, RDO I and RAP #2 Fuses


Object Number: 816235  Size: FS
Master Electrical Component List
DR LOCK and LOCK Fuses
BRAKE, CRUISE, HTR A/C, RR WPR, WS WPR, and SEO ACCY Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
Figure 33:

DR LOCK and LOCK Fuses


Object Number: 816236  Size: FS
Master Electrical Component List
BRAKE, CRUISE, HTR A/C, RR WPR, WS WPR, and SEO ACCY Fuses
PWR WDO Circuit Breakers, RDO I and RAP #2 Fuses
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses
UNLOCK Fuse
Figure 34:

UNLOCK Fuse


Object Number: 816238  Size: FS
Master Electrical Component List
DR LOCK and LOCK Fuses
SEATS Circuit Breaker and MIR/LOCK Fuse
DR LOCK and LOCK Fuses
Figure 35:

SEATS Circuit Breaker and MIR/LOCK Fuse


Object Number: 816239  Size: FS
Master Electrical Component List
UNLOCK Fuse
IGNITION, RUN, ACCESSORY, and RAP Bus Bars - RAP #1 and RAP #2 Fuses