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

Underhood Fuse Block


Object Number: 787265  Size: MF
(1)AC Compressor Relay
(2)H-LP Relay
(3)Not Used
(4)Not Used
(5)Not Used
(6)C100
(7)DIM Relay
(8)Spare Fuse
(9)Horn Relay
(10)Fan 2 Relay
(11)Fan 1 Relay
(12)C1-Battery Voltage
(13)Not Used
(14)H-Main Fuse 30A
(15)Alt-S Fuse 5A
(16)EFI Fuse 15A
(17)HAZ Fuse 10A
(18)HORN Fuse 10A
(19)C2
(20)DOME Fuse 15A
(21)MAIN Fuse 30A
(22)AMP Fuse 25A (If Equipped)
(23)Not Used
(24)ALT Fuse 100A
(25)ABS 2 Fuse 40A
(26)RDI Fuse 40A
(27)ABS 1 Fuse 30A
(28)Not Used
(29)FR FOG Fuse 15A
(30)H-LP RH Fuse 15A
(31)H-LP LH 15A
(32)EFI Relay
(33)FR FOG Relay
Figure 2:

Instrument Panel Fuse Block (Bottom)


Object Number: 787267  Size: LF
(1)TAIL Fuse 15A
(2)OBD Fuse 7.5A
(3)Not Used
(4)Not Used
(5)WIPER Fuse 25A
(6)AM 2 Fuse 15A
(7)STOP Fuse 15A
(8)DOOR Fuse 25A
(9)AM 1 Fuse 25A
(10)Not Used
(11)ECU-IG Fuse 10A
(12)RR WIPER Fuse 15A
(13)AC Fuse 10A
(14)INV Fuse 15A
(15)P/POINT Fuse 15A
(16)ECU-B Fuse 10A
(17)CIG Fuse 15A
(18)GAUGE Fuse 10A
(19)WASHER Fuse 15A
(20)BLOWER/DEF Idle-Up Fuse 10A
(21)C13
(22)HEATER Fuse 40A
(23)DEF Fuse 30A
(24)POWER Fuse 30A
(25)C12
(26)Multifunction Alarm Module
(27)C11
Figure 3:

Instrument Panel Fuse Block (Top)


Object Number: 787266  Size: MF
(1)C1
(2)C3
(3)C4
(4)C5
(5)Hazard Flasher
(6)C10
(7)C7
(8)C/OPN Relay
(9)C2
(10)C9
(11)C8
(12)C6
(13)P/W Relay
(14)IG 1 Relay
(15)DEF Relay
(16)Noise Filter
(17)ST Relay
Figure 4:

AC/DC Accessory Power Receptacle


Object Number: 847071  Size: LF
(1)Accessory Power Receptacle Switch
(2)Accessory Power Receptacle
(3)Accessory Power Receptacle Relay
(4)Accessory AC/DC Power Control Module
Figure 5:

Cigar Lighter


Object Number: 847716  Size: SF
(1)Cigar Lighter
Figure 6:

Right Instrument Panel Junction Block -- Relay Side


Object Number: 785553  Size: MF
(1)Right Instrument Panel Junction Block -- Relay Side
(2)INV Relay
(3)Tail Relay
(4)P-Point Relay
(5)Heater Relay
Figure 7:

Right Instrument Panel Junction Block -- Connector Side


Object Number: 785562  Size: MF
(1)C3
(2)C2
(3)C1
(4)Right Instrument Panel Junction Block -- Connector Side
Figure 8:

Left Instrument Panel Junction Block


Object Number: 787258  Size: MF
(1)Left Instrument Panel Junction Block
(2)C3
(3)C2
(4)C1
Figure 9:

Right Instrument Panel Junction Block Buss Bar View


Object Number: 1462343  Size: MF
(1)Left Instrument Panel Junction Block
(2)C3
(3)C2
(4)C1
Figure 10:

Left Instrument Panel Junction Block Buss Bar View


Object Number: 1462356  Size: MF
(1)Left Instrument Panel Junction Block
(2)C3
(3)C2
(4)C1
Figure 11:

ABS Relay Block


Object Number: 1464261  Size: MF
(1)ABS Cut Relay
(2)ABS MTR Relay