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

Cowl Wiring


Object Number: 347305  Size: MF
(1)Clutch Pedal Position (CPP) Switch (Manual Transmission)
(2)S206 S208 S224 S229 S244 S246 S255 S275
(3)CPP Interrupt Switch (Manual Transmission/ Cruise Control)
(4)Stoplamp Switch Connector
(5)Electronic Brake Control Module (EBCM) (ABS)
(6)Main Harness
(7)S203 S209 S212 S214 S216 S217 S231 S243 S264 S272 S284 S286 S295
(8)Blower Speed Selector Switch Connector
(9)Fuel Pump Relay
(10)Main Relay
(11)Horn Relay
(12)S220 S222 S228 S247 S271
(13)Turn Signal Relay
(14)S239 S250
(15)Blower Motor Resistor Connector
(16)G201
(17)S296
(18)Blower Motor
(19)A/C Amplifier Connector
(20)Evaporator Thermistor
(21)Inner A/C Harness
(22)A/C Switch Connector
(23)G203
(24)S211 S270
(25)Ignition Key Warning Switch Connector
(26)Ignition Switch Connector
(27)Combination Switch Connector
(28)Air Bag Fuse Box
(29)Powertrain Control Module (PCM) Connectors
(30)Power Door Lock Control Module
(31)C200
(32)Fuse Block 2
(33)C201
(34)Daytime Running Lamps (DRL) Control Module Connector
(35)G200
(36)S215 S218 S230 S240 S241 S266 S267 S274 S278 S279 S280 S281 S287 S289
(37)C202
(38)C203
(39)C204
(40)C205
(41)S202 S210 S213 S216 S219 S227 S232 S242 S251 S254 S257 S260 S262 S268 S270 S272 S276 S282 S283 S285 S288 S294 S298
Figure 2:

Instrument Panel Wiring


Object Number: 346485  Size: MF
(1)Rear Wiper/ Washer Switch, Cruise Control ON/ OFF Switch
(2)Instrument Panel Cluster Assembly
(3)Instrument Panel Cluster Connector C1
(4)Instrument Panel Cluster Connector C2
(5)Instrument Panel Cluster Connector C3
(6)Rear Defogger Switch (4-Door)
(7)Left Front Speaker (4-Door)
(8)Illumination Controller/ Power Mirror Switch (4-Door)
(9)C200
(10)C201
(11)S236
(12)C211
(13)C209 (4-Door Only)
(14)S235 S201 S204
(15)S238
(16)S258 S256 S200
(17)Instrument Panel Harness
(18)Data Link Connector-On Board Diagnostics II (DLC-OBD II)
(19)Radio
(20)Cigar Lighter
(21)C208
(22)C213
(23)S205 S221 S225 S226
(24)Audio Alarm Module
(25)C210 (4-Door Only)
(26)Right Front Speaker (4-Door)
Figure 3:

LH Front Door (4-Door with Power Opt.) -- RH Similar


Object Number: 355241  Size: MF
(1)C500, C600
(2)Power Mirror Motor Connector
(3)C501, C600
(4)P500, P600
(5)Power Window Motor
(6)LH Front Power Window/Door Lock Switch Connector
(7)Power Door Lock Actuator Assembly (Hidden)
Figure 4:

LH Rear Door (4-Door with Power Opt.) -- RH Similar


Object Number: 355243  Size: MF
(1)C305, C306
(2)P700, P800
(3)Power Window Motor (Hidden)
(4)Power Window Switch Connector
(5)Power Door Lock Actuator