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

Battery Feed to the Underhood Fuse Block


Object Number: 394689  Size: FS
Power and Grounding Components
Battery Feed to the Rear Fuse Block
Battery Feed to the Rear Fuse Block
Figure 2:

Battery Feed to the Rear Fuse Block


Object Number: 406713  Size: FS
Power and Grounding Components
IGN-1 Relay, TRANS, DIS, OXY SEN and IGN 1 Fuses (Underhood Fuse Block)
Battery Feed to the Underhood Fuse Block
Battery Feed to the Underhood Fuse Block
Figure 3:

IGN-1 Relay, TRANS, DIS, OXY SEN and IGN 1 Fuses (Underhood Fuse Block)


Object Number: 394728  Size: FS
Power and Grounding Components
START 1 Relay, INJR 2, PCM IGN, CR CONT, and INJR 1 Fuses (UnDERhood Fuse Block)
Battery Feed to the Rear Fuse Block
START 1 Relay, INJR 2, PCM IGN, CR CONT, and INJR 1 Fuses (UnDERhood Fuse Block)
Handling ESD Sensitive Parts Notice
Figure 4:

START 1 Relay, INJR 2, PCM IGN, CR CONT, and INJR 1 Fuses (Underhood Fuse Block)


Object Number: 394727  Size: FS
Power and Grounding Components
START Circuit Breaker, START, HORN and A/C CLUTCH Relay, HORN and A/C CLU Fuses (Underhood Fuse Block)
IGN-1 Relay, TRANS, DIS, OXY SEN and IGN 1 Fuses (Underhood Fuse Block)
IGN-1 Relay, TRANS, DIS, OXY SEN and IGN 1 Fuses (Underhood Fuse Block)
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 5:

START Circuit Breaker, START, HORN and A/C CLUTCH Relay, HORN and A/C CLU Fuses (Underhood Fuse Block)


Object Number: 394731  Size: FS
Power and Grounding Components
High Beam, Low Beam and DRL Relays, High Beam and Low Beam Fuses (U/HBEC)
START 1 Relay, INJR 2, PCM IGN, CR CONT, and INJR 1 Fuses (UnDERhood Fuse Block)
Battery Feed to the Underhood Fuse Block
Horns
Figure 6:

High Beam, Low Beam and DRL Relays, High Beam and Low Beam Fuses (U/H BEC)


Object Number: 394729  Size: FS
Power and Grounding Components
ABS and PCM BATT Fuses (Underhood Fuse Block)
START Circuit Breaker, START, HORN and A/C CLUTCH Relay, HORN and A/C CLU Fuses (Underhood Fuse Block)
Battery Feed to the Underhood Fuse Block
G103
DRL, High Beam Headlamps, Dimmer Switch
Figure 7:

ABS and PCM BATT Fuses (Underhood Fuse Block)


Object Number: 394734  Size: FS
Power and Grounding Components
COOL FAN S/P Relay and COOL FAN 1 & 2 Fuses and Relays (UnDERhood Fuse Block)
High Beam, Low Beam and DRL Relays, High Beam and Low Beam Fuses (U/HBEC)
Battery Feed to the Underhood Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 8:

COOL FAN S/P Relay and COOL FAN 1 & 2 Fuses and Relays (Underhood Fuse Block)


Object Number: 394794  Size: FS
Power and Grounding Components
AIR PUMP and ACCY Relays, AIR, C/LTR, AUX PWR, WSW and ACCY Fuses (Underhood Fuse Block)
ABS and PCM BATT Fuses (Underhood Fuse Block)
G103
Cooling Fans and Relays
Cooling Fans and Relays
Figure 9:

AIR PUMP and ACCY Relays, AIR, C/LTR, AUX PWR, WSW and ACCY Fuses (Underhood Fuse Block)


Object Number: 394733  Size: FS
Power and Grounding Components
HTDST RF, HTDST LF, DIM and MEM Fuses (Rear Fuse Block)
COOL FAN S/P Relay and COOL FAN 1 & 2 Fuses and Relays (UnDERhood Fuse Block)
Figure 10:

HTDST RF, HTDST LF, DIM and MEM Fuses (Rear Fuse Block)


Object Number: 394710  Size: FS
Power and Grounding Components
HVAC BATT, DRV MDL, PASS MDL and RRDRMDL Fuses (Rear Fuse Block)
AIR PUMP and ACCY Relays, AIR, C/LTR, AUX PWR, WSW and ACCY Fuses (Underhood Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 11:

HVAC BATT, DRV MDL, PASS MDL and RRDRMDLFuses (Rear Fuse Block)


Object Number: 394718  Size: FS
Power and Grounding Components
ELC, TRK/REL, and REAR DEFOG Relays, ELC, REAR DEFOG and ALDL Fuses(Rear Fuse Block)
HTDST RF, HTDST LF, DIM and MEM Fuses (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 12:

ELC, TRK/REL, and REAR DEFOG Relays, ELC, REAR DEFOG and ALDL Fuses (Rear Fuse Block)


Object Number: 394716  Size: FS
Power and Grounding Components
PWR WDO and PWR SEAT Circuit Breakers (Rear Fuse Block)
HVAC BATT, DRV MDL, PASS MDL and RRDRMDL Fuses (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 13:

PWR WDO and PWR SEAT Circuit Breakers (Rear Fuse Block)


Object Number: 394708  Size: FS
INT LP, BODY Fuses, INT LP and TRK REL Relays (1 of 2) (Rear Fuse Block)
ELC, TRK/REL, and REAR DEFOG Relays, ELC, REAR DEFOG and ALDL Fuses(Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 14:

INT LP, BODY Fuses, INT LP and TRK REL Relays (1 of 2) (Rear Fuse Block)


Object Number: 394706  Size: FS
INT LP, BODY Fuses, INT LP and TRK REL Relays (2 of 2) (RR BEC)
PWR WDO and PWR SEAT Circuit Breakers (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
INT LP, BODY Fuses, INT LP and TRK REL Relays (2 of 2) (RR BEC)
Handling ESD Sensitive Parts Notice
Figure 15:

INT LP, BODY Fuses, INT LP and TRK REL Relays (2 of 2) (RR BEC)


Object Number: 406717  Size: FS
Power and Grounding Components
INT LP, BODY, LP PKL, LP PKR and DIMR Fuses INT LP and BODY Relays(Rear Fuse Block)
INT LP, BODY Fuses, INT LP and TRK REL Relays (1 of 2) (Rear Fuse Block)
INT LP, BODY Fuses, INT LP and TRK REL Relays (1 of 2) (Rear Fuse Block)
Figure 16:

INT LP, BODY, LP PKL, LP PKR and DIMR Fuses INT LP and BODY Relays (Rear Fuse Block)


Object Number: 394713  Size: FS
Power and Grounding Components
TSIG/HAZ, STOP LP, AUDIO and CD Fuses (Rear Fuse Block)
INT LP, BODY Fuses, INT LP and TRK REL Relays (2 of 2) (RR BEC)
Handling ESD Sensitive Parts Notice
Figure 17:

TSIG/HAZ, STOP LP, AUDIO and CD Fuses (Rear Fuse Block)


Object Number: 394703  Size: FS
Power and Grounding Components
IP, CIGAR, AUX PWR, and C/LTR Fuses and CIGAR Relay
INT LP, BODY, LP PKL, LP PKR and DIMR Fuses INT LP and BODY Relays(Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 18:

IP, CIGAR, AUX PWR, and C/LTR Fuses and CIGAR Relay


Object Number: 394725  Size: FS
Power and Grounding Components
PARK and REVERSE Relay, NSBU and IGN SW Fuses (Rear Fuse Block)
TSIG/HAZ, STOP LP, AUDIO and CD Fuses (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 19:

PARK and REVERSE Relay, NSBU and IGN SW Fuses (Rear Fuse Block)


Object Number: 394700  Size: FS
Power and Grounding Components
Ignition Switch (1 of 2)
IP, CIGAR, AUX PWR, and C/LTR Fuses and CIGAR Relay
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Ignition Switch (1 of 2)
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Backup Lamps
Figure 20:

Ignition Switch (1 of 2)


Object Number: 394726  Size: FS
Power and Grounding Components
Ignition Switch (2 of 2)
PARK and REVERSE Relay, NSBU and IGN SW Fuses (Rear Fuse Block)
Ignition Switch (2 of 2)
Ignition Switch (2 of 2)
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 21:

Ignition Switch (2 of 2)


Object Number: 394697  Size: FS
Power and Grounding Components
IGN-1, VENT SOL and SIR Fuse (Rear Fuse Block)
Ignition Switch (1 of 2)
Ignition Switch (1 of 2)
Ignition Switch (1 of 2)
Handling ESD Sensitive Parts Notice
G103
Compressor Control W/CJ2
Automatic Level Control Suspension Schematics
Rear Window Defogger
G302
G302
Park Lamp Relay
Figure 22:

IGN-1, VENT SOL and SIR Fuse (Rear Fuse Block)


Object Number: 394719  Size: FS
Power and Grounding Components
IGN3 and ABS Fuses (Rear Fuse Block)
Ignition Switch (2 of 2)
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 23:

IGN3 and ABS Fuses (Rear Fuse Block)


Object Number: 394724  Size: FS
Power and Grounding Components
HVAC Fuse (Rear Fuse Block)
IGN-1, VENT SOL and SIR Fuse (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 24:

HVAC Fuse (Rear Fuse Block)


Object Number: 406711  Size: FS
Power and Grounding Components
HVAC BLO and AUDIO AMP Fuses, RAP and F/PMP Relays (Rear Fuse Block)
IGN3 and ABS Fuses (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 25:

HVAC BLO and AUDIO AMP Fuses, RAP and F/PMP Relays (Rear Fuse Block)


Object Number: 394735  Size: FS
Power and Grounding Components
HVAC Fuse (Rear Fuse Block)
Battery Feed to the Rear Fuse Block
Battery Feed to the Rear Fuse Block
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice