For 1990-2009 cars

Figure 1: |

#### Center Front of the Engine Compartment

(1) | RH Cooling Fan Motor
(2) | S143
(3) | Cooling Fan Diode
(4) | S141
(5) | LH Cooling Fan Motor

Figure 2: |

#### Engine Compartment, Right Side

(1) | RH Front Strut Tower
(2) | P107 (Hidden)
(3) | S116
(4) | G103
(5) | S122
(6) | S115
(7) | S104
(8) | S100
(9) | S121
(10) | S119
(11) | S124
(12) | S130

Figure 3: |

#### Right Side of the Engine Compartment

(1) | RH Front Wheel House
(2) | C105
(3) | Windshield Washer Fluid Level Switch
(4) | RH Front Fender
(5) | Windshield Washer Pump
(6) | Washer Fluid Container

Figure 4: |

#### Engine Compartment, Left Rear

(1) | S110 S109
(2) | G106
(3) | G104
(4) | S101
(5) | Harness to the Brake Pressure Modulator Valve (BPMV)
(6) | S112
(7) | S111
(8) | S120
(9) | S132
(10) | P100
(11) | S142
(12) | Harness to the Brake Fluid Level Switch
(13) | S102

Figure 5: |

#### Center Rear of the Engine Compartment

(1) | C102
(2) | Cruise Control Module
(3) | C101
(4) | Brake Fluid Level Switch
(5) | ABS Pump Relay
(6) | ABS Main Relay
(7) | Windshield Wiper/Washer Module
(8) | Cooling Fan Relay

Figure 6: |

#### Center Rear of the Engine Compartment

(1) | A/C Low Temperature Sensor
(2) | S140
(3) | Right Front Strut Tower

Figure 7: |

#### Engine, Right Front

(1) | G100
(2) | C107
(3) | Camshaft Position (CMP) Sensor
(4) | Water Pump

Figure 8: |

#### Engine, Left Front

(1) | C131
(2) | Starter Motor
(3) | Starter Solenoid
(4) | Starter Solenoid
(5) | Starter Motor

Figure 9: |

#### Left Front of the Engine Compartment

(1) | C100
(2) | Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(3) | S123

Figure 10: |

#### Rear of the Engine

(1) | Ignition Control (IC) Module
(2) | S106
(3) | Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4) | S118
(5) | S153
(6) | S152
(7) | S114
(8) | S127
(9) | C106

Figure 11: |

#### Engine, Front

(1) | Crankshaft Position (CKP) Sensor A
(2) | Crankshaft Position (CKP) Sensor B
(3) | Manifold Absolute Pressure (MAP) Sensor (Hidden)
(4) | Engine Oil Pressure Switch
(5) | S105, S108
(6) | Generator
(7) | Engine Oil Level Switch (Hidden)

Figure 12: |

#### Engine, Right Rear

(1) | Engine Oil Pressure Switch
(2) | G101 (VIN 1)

Figure 13: |

#### Right Rear of the Engine

(1) | G101 (Hidden)
(2) | Engine Oil Pressure Switch
(3) | Vehicle Speed Sensor (VSS)
(4) | Variable Steering Actuator
(5) | C111
(6) | Knock Sensor Bank 2 (Hidden)

Figure 14: |

#### Rear of the Engine

(1) | S106
(2) | S131
(3) | S126

Figure 15: |

#### Left Front of the Vehicle, in the Wheel Opening

(1) | C104, C103
(2) | LH Front Wheel Speed Sensor (RH similar)
(3) | Wheel Hub
(4) | LH Front Wheel Speed Sensor Harness Connector (RH similar)

Figure 16: |

#### Behind the Instrument Panel (Oldsmobile shown)

(1) | S215
(2) | S204
(3) | S240
(4) | S279
(5) | Fuel Door Release Switch
(6) | Panel Dimming Control Switch
(7) | C209
(8) | C208
(9) | Fog Lamp Switch
(10) | S229
(11) | S207
(12) | C200
(13) | S246
(14) | S236
(15) | S255
(16) | C203
(17) | Radio Connector
(18) | Instrument Panel Compartment

Figure 17: |

#### Passenger Compartment, Behind the Instrument Panel

(1) | S264
(2) | S256
(3) | Headlamp Switch Connector
(4) | C213
(5) | C200
(6) | C203
(7) | Radio Connector
(8) | C206
(9) | S201
(10) | S273
(11) | IP Compartment
(12) | C210
(13) | Heater and A/C Control Connector
(14) | S204

Figure 18: |

#### Passenger Compartment, Behind the Instrument Panel

(1) | S241
(2) | S242
(3) | S261
(4) | S287
(5) | S296
(6) | S248
(7) | S245
(8) | Harness to the Powertrain Control Module (PCM)
(9) | S297
(10) | S285
(11) | S259
(12) | Harness to C200
(13) | S218
(14) | S214
(15) | S211
(16) | S206
(17) | S299
(18) | Harness to the Park Brake Switch
(19) | S263
(20) | S258
(21) | S237
(22) | S220 (Buick) S210 (Oldsmobile)
(23) | S292
(24) | Harness to the Instrument Cluster
(25) | S239
(26) | S231
(27) | S209
(28) | Body Wiring Harness

Figure 19: |

#### Passenger Compartment, Top of the Instrument Panel

(1) | Right Solar Sensor (Buick)
(2) | Ambient Light Sensor (Oldsmobile)
(3) | Right Solar Sensor (Oldsmobile)
(4) | S288
(5) | C219 (Oldsmobile)
(6) | Defrost Grille (Oldsmobile)
(7) | Left Solar Sensor (Oldsmobile)
(8) | Left Solar Sensor (Buick)
(9) | Defrost Grille (Buick)
(10) | Ambient Light Sensor (Buick)

Figure 20: |

#### Passenger Compartment, Under the Left Side of the IP

(1) | S222
(2) | S223
(3) | S221
(4) | S228
(5) | S226
(6) | S224
(7) | S238
(8) | S202
(9) | P100
(10) | S292
(11) | S217
(12) | S227
(13) | S294
(14) | S281
(15) | S331
(16) | S290
(17) | C209
(18) | S289
(19) | S298
(20) | IP Fuse Block
(21) | G202

Figure 21: |

#### Passenger Compartment, Under the Left Side of the Instrument Panel

(1) | C215
(2) | C212

Figure 22: |

#### Passenger Compartment, Under the Left Side of the Instrument Panel

(1) | C202
(2) | Lamp Control Module (LCM)
(3) | Body Control Module (MALL)
(4) | Starter Enable Relay

Figure 23: |

#### Passenger Compartment, Under the Right Side of the Instrument Panel

(1) | S277
(2) | C207
(3) | C205
(4) | S276
(5) | S275
(6) | S274
(7) | S278

Figure 24: |

#### Passenger Compartment, Under the Right Side of the Instrument Panel

(1) | S260
(2) | S295
(3) | S293
(4) | S212
(5) | P600
(6) | G201
(7) | S253
(8) | S254
(9) | S225
(10) | P108
(11) | P107
(12) | S291

Figure 25: |

#### Passenger Compartment, in the Center Console

(1) | Console (Buick)
(2) | Shift Interlock Solenoid (Buick)
(3) | S315 (Buick)
(4) | S227 (Buick)
(5) | C203 (Buick)
(6) | Console (Oldsmobile)
(7) | Shift Interlock Solenoid (Oldsmobile)
(8) | C203 (Oldsmobile)

Figure 26: |

#### Passenger Compartment, Under the Center Console

(1) | Console Compartment Lamp (Oldsmobile)
(2) | Console Compartment Lamp Switch (Oldsmobile)
(3) | S316 (Oldsmobile)
(4) | S301 (Oldsmobile)
(5) | C203 (Oldsmobile)
(6) | S302 (Oldsmobile)
(7) | S314 (Buick)
(8) | PRNDL Indicator Lamp (Buick)
(9) | S315 (Buick)
(10) | C203 (Buick)

Figure 27: |

#### Passenger Compartment, Under the Left Front Seat

(1) | Seat Horizontal Position Sensor
(2) | S332
(3) | S324
(4) | Memory Seat/Mirror Module
(5) | S304 (Buick) S310 (Oldsmobile)
(6) | C301(LH) C305 (RH)
(7) | Memory Seat/Mirror Diagnostic Connector
(8) | S306 (Buick)
(9) | LH Heated Seat Module (RH similar)
(10) | Seat Front Vertical Position Sensor
(11) | LH Seat Front Vertical Motor (RH similar)
(12) | LH Seat Rear Vertical Motor (RH similar)
(13) | LH Seat Horizontal Motor (RH similar)
(14) | Seat Rear Vertical Position Sensor

Figure 28: |

#### Left Rear of the Passenger Compartment

(1) | Perimeter Lighting Contol Relay
(2) | S309
(3) | G302
(4) | S345
(5) | LH Sill Channel

Figure 29: |

#### Passenger Compartment, at the Base of the Right Rear Sail Panel

(1) | C308
(2) | C303
(3) | Harness to the RH Rear Reading Lamp Switch (LH Similar)
(4) | S319
(5) | S320
(6) | S286
(7) | Center High Mounted Stop Lamp Connector

Figure 30: |

#### Passenger Compartment, Behind the Right Corner of the Rear Seat

(1) | S423
(2) | S418
(3) | S415
(4) | S450
(5) | S417

Figure 31: |

#### Passenger Compartment, Under the Rear Seat

(1) | S343
(2) | S342
(3) | RH Rear Fuse Block
(4) | S341
(5) | S335
(6) | S363
(7) | S362 (Oldsmobile)
(8) | S336
(9) | S337
(10) | S338
(11) | S339
(12) | S340
(13) | S344
(14) | S334
(15) | LH Rear Fuse Block

Figure 32: |

#### Passenger Compartment, Under the Rear Seat

(1) | Battery
(2) | S303
(3) | RH Sill Channel
(4) | G301
(5) | S427
(6) | S355
(7) | S356
(8) | S366
(9) | S358
(10) | S365
(11) | S354
(12) | S364
(13) | S359
(14) | Positive Battery Cable
(15) | Battery Thermistor

Figure 33: |

#### Left Door (Buick)

(1) | Left Front Power Window Motor (RH Similar)
(2) | S507
(3) | S503
(4) | S501
(5) | S502
(6) | P500 (Left) P600 (Right)
(7) | Power Window Control Module
(8) | C501 (Left) C600 (Right)
(9) | C505 (Left) C605 (Right)
(10) | Left Front Door Lock Actuator (Right similar)

Figure 34: |

#### Left Front Door (Oldsmobile Shown, Buick Similar)

(1) | S509 (Left), S604 (Right)
(2) | S501
(3) | S502
(4) | P500 (Left) P600 (Right)
(5) | Power Window Control Module
(6) | S505
(7) | S505 (Left), S605 (Right)
(8) | S503
(9) | C501 (Left), C601 (Right)
(10) | Left Front Door Lock Actuator (Right similar)

Figure 35: |

#### Rear Compartment, Under the Rear Shelf Panel

(1) | Remote Function Actuator (RFA) Module
(2) | Rear Package Shelf
(3) | Bose® Amplifier
(4) | S223
(5) | S232
(6) | Bose® Subwoofer

Figure 36: |

#### Rear Compartment, in the Right Rear Corner

(1) | S410 (Buick)
(2) | C420
(3) | P408
(4) | S419 (Oldsmobile)
(5) | G401
(6) | S423

Figure 37: |

#### Rear of the Vehicle, Behind the Left Tail Lamp (Oldsmobile)

(1) | C406 (LH) C405 (RH)
(2) | S430 (LH) S431 (RH)
(3) | S426 (LH) S421 (RH)
(4) | P403 (LH) P404 (RH)
(5) | LH Tail Lamp (RH Similar)
(6) | S437 (LH) S416 (RH)

Figure 38: |

#### Rear of the Vehicle (Buick Shown)

(1) | C407
(2) | S429
(3) | S420
(4) | S431
(5) | P401
(6) | RH Rear Tail Lamp (LH Similar)
(7) | S432
(8) | RH Rear Side Marker Lamp
(9) | S425
(10) | S430
(11) | LH Rear Side Marker Lamp

Figure 39: |

#### Rear of the Vehicle, Behind the Rear Fascia (Oldsmobile Shown)

(1) | S432
(2) | S425
(3) | LH Rear Side Marker Lamp
(4) | Backup Lamps
(5) | C404
(6) | P405
(7) | RH Rear Side Marker Lamp
(8) | S428