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

Battery Feed to Left and Right Underhood Fuse Blocks


Object Number: 653227  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- RUN/CRK Fuse and IGN Relay
G100, G101, G102 and G103
Figure 2:

Left Underhood Fuse Block- RUN/CRK Fuse and IGN Relay


Object Number: 653228  Size: FS
Master Electrical Component List
Battery Voltage Supply to Underhood Fuse Blocks
Battery Voltage Supply to Underhood Fuse Blocks
Battery Voltage Supply to Underhood Fuse Blocks
Figure 3:

Left Underhood Fuse Block- PCM, SIR and INJR Fuses


Object Number: 653229  Size: FS
Master Electrical Component List
Battery Voltage Supply to Underhood Fuse Blocks
Battery Voltage Supply to Underhood Fuse Blocks
SIR Caution for Zoning
Battery Voltage Supply to Underhood Fuse Blocks
Figure 4:

Left Underhood Fuse Block- AIR SOL, C3I and IGNFD Fuses


Object Number: 875646  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- OXY SEN and SBM LCM Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Battery Voltage Supply to Underhood Fuse Blocks
Figure 5:

Left Underhood Fuse Block- OXY SEN and SBM LCM Fuses


Object Number: 653231  Size: FS
Master Electrical Component List
Underhood Fuse Block- T/SIG, A/C CLU Fuses and A/C CLU Relay
Underhood Fuse Block- AIR SOL, C3I and IGNFD Fuse
Underhood Fuse Block, RUN/CRK Fuse and IGN Relay
Figure 6:

Left Underhood Fuse Block- T/SIG, A/C CLU Fuses and A/C CLU Relay


Object Number: 653232  Size: FS
Master Electrical Component List
Rear Fuse Block- CRK, PCM/CRU and SBM Fuses
Left Underhood Fuse Block- OXY SEN and SBM LCM Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Figure 7:

Rear Fuse Block- CRK, PCM/CRU and SBM Fuses


Object Number: 653234  Size: FS
Master Electrical Component List
Right Underhood Fuse Block- AIR PUMP, COOL FAN 1, AUX OTLT and REAR DEFOG F
Left Underhood Fuse Block- T/SIG, A/C CLU Fuses and A/C CLU Relay
Figure 8:

Right Underhood Fuse Block- AIR PUMP, COOL FAN 1, AUX OTLT, and REAR DEFOG Fuses


Object Number: 653235  Size: FS
Master Electrical Component List
Circuit Breaker/Rear Fuse Block- RDO/PH, SUNRF Fuses and RAP Relay
Rear Fuse Block- CRK, PCM/CRU and SBM Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Figure 9:

Right Underhood Fuse Block- PWR WDO Circuit Breaker/Rear Fuse Block-RDO/PH, SUNRF Fuses and RAP Relay


Object Number: 653236  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- HDLP, HDLOBML, HDLOBMR, HDHIBML, HDHIBMR, STARTER Fuses and Starter Relay
Right Underhood Fuse Block- AIR PUMP, COOL FAN 1, AUX OTLT and REAR DEFOG F
SIR Caution for Zoning
Battery Voltage Supply to Underhood Fuse Blocks
Figure 10:

Left Underhood Fuse Block- HDLP, HDLOBML, HDLOBMR, HDHIBML, HDHIBMR, STARTER Fuses and STARTER Relay


Object Number: 653238  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- BLO MOT, COOL FAN 2, HORN, and STOP Fuses
Circuit Breaker/Rear Fuse Block- RDO/PH, SUNRF Fuses and RAP Relay
Battery Voltage Supply to Underhood Fuse Blocks
Figure 11:

Left Underhood Fuse Block- BLO MOT, COOL FAN 2, HORN, and STOP Fuses


Object Number: 653303  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- ABS, PCM, HZDT/SG, F/PMP and LP PK Fuses
Left Underhood Fuse Block- HDLP, HDLOBML, HDLOBMR, HDHIBML, HDHIBMR, STARTER Fuses and Starter Relay
Stop Lamps
Stop Lamps
Battery Voltage Supply to Underhood Fuse Blocks
Figure 12:

Left Underhood Fuse Block- PCM, ABS, HZDT/SG, F/PMP, PK LP Fuses and F/PMP Relay


Object Number: 653309  Size: FS
Master Electrical Component List
eft Underhood Fuse Block- BAT 1 Fuse/ Rear Fuse BLock-RDM, C/LTR, DDM, HTDST L, TRK REL Fuses/ I/P Fuse Block- PDM, SBM, and CSTR/SBM Fuses
Left Underhood Fuse Block- BLO MOT, COOL FAN 2, HORN, and STOP Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Figure 13:

Left Underhood Fuse Block- BAT 1/ Rear Fuse Block- RDM, C/LTR, DDM, HTDST L, TRK REL Fuses and Trunk Lid Release Relay/ IP Fuse Block- PDM, SBM, CSTR/SBM Fuses


Object Number: 653313  Size: FS
Master Electrical Component List
Rear Fuse Block- RDO and CD/PH Fuses
Left Underhood Fuse Block- ABS, PCM, HZDT/SG, F/PMP and LP PK Fuses
Rear Fuse Block- RDO and CD/PH Fuses
Figure 14:

Rear Fuse Block- RDO and CD/PH Fuses


Object Number: 653317  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
eft Underhood Fuse Block- BAT 1 Fuse/ Rear Fuse BLock-RDM, C/LTR, DDM, HTDST L, TRK REL Fuses/ I/P Fuse Block- PDM, SBM, and CSTR/SBM Fuses
eft Underhood Fuse Block- BAT 1 Fuse/ Rear Fuse BLock-RDM, C/LTR, DDM, HTDST L, TRK REL Fuses/ I/P Fuse Block- PDM, SBM, and CSTR/SBM Fuses
Figure 15:

Left Underhood Fuse Block- IGN Fuse/ IP Fuse Block- RUN Fuse, IGN 3 and ACCY Relay


Object Number: 653324  Size: FS
Master Electrical Component List
I/P Fuse Block- ELC, HUD, ABS, and CR CONT Fuses
Rear Fuse Block- RDO and CD/PH Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Figure 16:

IP Fuse Block- ELC, HUD, ABS and CR CONT


Object Number: 653330  Size: FS
Master Electrical Component List
/P Fuse Block- IGN SEN Fuse
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
Figure 17:

IP Fuse Block- IGN SEN Fuse


Object Number: 653332  Size: FS
Master Electrical Component List
I/P Fuse Block- HVAC and A/C Fuses
I/P Fuse Block- ELC, HUD, ABS, and CR CONT Fuses
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
Figure 18:

IP Fuse Block- HVAC and A/C Fuses


Object Number: 653337  Size: FS
Master Electrical Component List
I/P Fuse Block- WSW/RFA and WSW Fuses
/P Fuse Block- IGN SEN Fuse
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
Figure 19:

IP Fuse Block- WSW/RFA and WSW Fuses


Object Number: 653341  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- BAT 2 Fuse/ Rear Fuse Block- PWR SEAT Circuit Breaker, MEM/RFA Fuse
I/P Fuse Block- HVAC and A/C Fuses
Left Underhood Fuse Block- IGN Fuse/ I/P Fuse Block-RUN Fuse, IGN 3 and ACCY Relay
Figure 20:

Left Underhood Fuse Block- BAT 2 Fuse/ Rear Fuse Block- PWR SEAT Circuit Breaker and MEM/RFA Fuse


Object Number: 653355  Size: FS
Master Electrical Component List
Rear Fuse Block- HTDST R, C/LTRL, C/LTRR, Fuses and ELC Circuit Breaker
I/P Fuse Block- WSW/RFA and WSW Fuses
Battery Voltage Supply to Underhood Fuse Blocks
Rear Fuse Block- HTDST R, C/LTRL, C/LTRR, Fuses and ELC Circuit Breaker
Figure 21:

Rear Fuse Block- HTDST R, C/LTRL, C/LTRR Fuses and ELC Circuit Breaker


Object Number: 653360  Size: FS
Master Electrical Component List
Left Underhood Fuse Block- BAT 2 Fuse/ Rear Fuse Block- PWR SEAT Circuit Breaker, MEM/RFA Fuse
Left Underhood Fuse Block- BAT 2 Fuse/ Rear Fuse Block- PWR SEAT Circuit Breaker, MEM/RFA Fuse