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

Horns


Object Number: 352591  Size: SH
(1)Horn Connectors
(2)Horn
Figure 2:

Cowl Wiring


Object Number: 355229  Size: MF
(1)Blower Speed Selector Switch Connector
(2)Fuel Pump Relay
(3)Main Relay
(4)Horn Relay
(5)S220, S222, S228, S247, S271
(6)Turn Signal Relay
(7)S239, S250
(8)Blower Motor Resistor Connector
(9)G201
(10)S296
(11)Blower Motor
(12)A/C Amplifier Connector
(13)Evaporator Thermistor
(14)Inner A/C Harness
(15)A/C Switch Connector
(16)G203
(17)Ignition Key Warning Switch Connector
(18)Combination Switch Connector
(19)Combination Switch Connector
(20)Air Bag Fuse Box
(21)Powertrain Control Module (PCM) Connectors
(22)Power Door Lock Control Module
(23)C200
(24)Fuse Block 2
(25)C201
(26)Daytime Running Lamps (DRL) Control Module Connector
(27)G200
(29)S215, S218, S230, S240, S241, S266, S267, S274, S278, S279, S280, S281, S287, S289
(30)C202
(31)C203
(32)C204
(33)C205
(34)S202, S210, S213, S216, S219, S227, S232, S251, S254, S257, S260, S262, S268, S270, S272, S276, S282, S283, S285, S288, S294, S298
(35)Clutch Pedal Position (CPP) Switch (Manual Transmission)
(36)S206, S208, S224, S229, S244, S246, S255, S275
(37)CPP Interrupt Switch (Manual Transmission/Cruise Control)
(38)Stop lamp Switch Connector
(39)S211, S270
(40)Electronic Brake Control Module (EBCM) (ABS)
(41)Main Harness
(42)S203, S209, S212, S214, S216, S217, S231, S243, S264, S272, S284, S286, S295
Figure 3:

Underhood


Object Number: 1505377  Size: MF
(1)Splice 242