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

Junction Block -- Underhood


Object Number: 705757  Size: FS
Master Electrical Component List
EBCM, BATT MAIN 1, RADIO and PARK LP Fuses
Figure 2:

EBCM, BATT MAIN 1, RADIO and PARK LP Fuses


Object Number: 705711  Size: FS
Master Electrical Component List
BATT MAIN 1, CLUSTER BATT, RR PWR SCKT, PWR LOCK, RAP RELAY, CTSY LAMP, CTSY LAMP, ONSTAR, CIGAR DLC/APO FRT, and PWR MIRROR Fuses
Junction Block - Underhood
Figure 3:

BATT MAIN 1, CLUSTER BATT, RR PWR SCKT, PWR LOCK, RAP RELAY, CTSY LAMP, CTSY LAMP, ONSTAR, CIGAR DLC/APO FRT, and PWR MIRROR Fuses


Object Number: 705759  Size: FS
Master Electrical Component List
BATT MAIN 2, ELC/TRAILER, RR DEFOG, RR FOG LP Fuses and PWR/HEATED SEAT PSD Circuit Breaker
EBCM, BATT MAIN 1, RADIO and PARK LP Fuses
Figure 4:

BATT MAIN 2, ELC/TRAILER, RR DEFOG, RR FOG LP Fuses and PWR/HEATED SEAT PSD Circuit Breaker


Object Number: 705719  Size: FS
SWC BACKLIGHT and HTD MIRROR Fuses
Master Electrical Component List
Junction Block - Underhood, STOPLAMP, HAZARD, PASSKEY, FRT HVAC HI BLWR and HEADLAMP Circuit Breakers
BATT MAIN 1, CLUSTER BATT, RR PWR SCKT, PWR LOCK, RAP RELAY, CTSY LAMP, CTSY LAMP, ONSTAR, CIGAR DLC/APO FRT, and PWR MIRROR Fuses
Figure 5:

Junction Block -- Underhood, STOPLAMP, HAZARD, PASS KEY, FRT HVAC HI BLWR and HEADLAMP Circuit Breakers


Object Number: 705766  Size: FS
Master Electrical Component List
IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses
BATT MAIN 2, ELC/TRAILER, RR DEFOG, RR FOG LP Fuses and PWR/HEATED SEAT PSD Circuit Breaker
Figure 6:

IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses


Object Number: 705752  Size: FS
IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses
IGN 1, SDM, T/SIG, CRUISE and PCM PASS KEY/CLUSTER Fuses
IGN 1, SDM, T/SIG, CRUISE and PCM PASS KEY/CLUSTER Fuses
Master Electrical Component List
IGN 1, SDM, T/SIG, CRUISE and PCM PASS KEY/CLUSTER Fuses
Junction Block - Underhood, STOPLAMP, HAZARD, PASSKEY, FRT HVAC HI BLWR and HEADLAMP Circuit Breakers
Figure 7:

IGN 1, SDM, T/SIG, CRUISE and PCM PASS KEY/CLUSTER Fuses


Object Number: 705771  Size: FS
IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses
IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses
Master Electrical Component List
IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses
IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses
Figure 8:

IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses


Object Number: 705750  Size: FS
IGN MAIN 1, PCM/ABS, CAN VENT SOL, DRL and PCM/CRANK Fuses
RAP Relay Junction Block - Underhood, ECM SENSE, B/U LAMP, ALT/SENSE and AIR Fuses
DRL/HVAC/TEMP/HTD ST, HVAC BLOWER and RR HVAC/TEMP CONT Fuses
Master Electrical Component List
DRL/HVAC/TEMP/HTD ST, HVAC BLOWER and RR HVAC/TEMP CONT Fuses
IGN 1, SDM, T/SIG, CRUISE and PCM PASS KEY/CLUSTER Fuses
Figure 9:

DRL/HVAC/TEMP/HTD ST, HVAC BLOWER and RR HVAC/TEMP CONT Fuses


Object Number: 705769  Size: FS
IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses
Master Electrical Component List
RAP Relay Junction Block - Underhood, ECM SENSE, B/U LAMP, ALT/SENSE and AIR Fuses
IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses
Figure 10:

RAP Relay Junction Block -- Underhood, ECM SENSE, B/U LAMP, ALT/SENSE and AIR Fuses


Object Number: 705992  Size: FS
IGN MAIN 2, BCM PRGRM, RR WPR/WSHR, MALL/CLUSTER and FRT/WPR/WSHR Fuses
Master Electrical Component List
Junction Block - Underhood and IGN 1-U/H Fuse
DRL/HVAC/TEMP/HTD ST, HVAC BLOWER and RR HVAC/TEMP CONT Fuses
Figure 11:

Junction Block -- Underhood and IGN 1-U/H Fuse


Object Number: 705967  Size: FS
Master Electrical Component List
Junction Block - Underhood, TCC and ELEK IGN Fuses
RAP Relay Junction Block - Underhood, ECM SENSE, B/U LAMP, ALT/SENSE and AIR Fuses
Figure 12:

Junction Block -- Underhood, TCC and ELEK IGN Fuses


Object Number: 705971  Size: FS
Master Electrical Component List
INJ Fuse
Junction Block - Underhood and IGN 1-U/H Fuse
Figure 13:

INJ Fuse


Object Number: 735371  Size: FS
Master Electrical Component List
SWC BACKLIGHT and HTD MIRROR Fuses
Junction Block - Underhood, TCC and ELEK IGN Fuses
Figure 14:

SWC BACKLIGHT and HTD MIRROR Fuses


Object Number: 705974  Size: FS
Heater-A/C Control Switches and Instrument Cluster
BATT MAIN 2, ELC/TRAILER, RR DEFOG, RR FOG LP Fuses and PWR/HEATED SEAT PSD Circuit Breaker
Defogger
Master Electrical Component List
(EXPORT ONLY) LH T/LP, RH T/LP, LH HEAD LP HIGH, RH HEAD LP HIGH, LH HEAD LP LOW and RH HEAD LP LOW
INJ Fuse
Figure 15:

(EXPORT ONLY) LH T/LP, RH T/LP, LH HEAD LP HIGH, RH HEAD LP HIGH, LH HEAD LP LOW and RH HEAD LP LOW


Object Number: 705979  Size: FS
Master Electrical Component List
SWC BACKLIGHT and HTD MIRROR Fuses