Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Infiniti M45FACTORY OEM SERVICE PROCEDURE
External Pages
These are pages that do not belong to the exact selected vehicle (2004 Infiniti M45), but are still accessible from a link in your vehicle's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle.
- Different car
- Section 1 (Electronic Suspension - Wiring Diagrams)
- Section 2 (Engine Controls - Self-Diagnostics - Q45)
- Section 3 (Wiring Diagrams)
- Section 4 (Engine Controls - Service & Adjustment Specifications)
- Section 5 (Engine Controls - On-Vehicle Adjustments)
- Section 6 (Engine Controls - Basic Diagnostic Procedures)
- Section 7 (Engine Controls - Self-Diagnostics)
- Section 8 (Engine Controls - Self-Diagnostics - 2.2L)
- Section 9 (Engine Controls - Trouble Shooting - No Codes)
- Section 10 (Engine Controls - System & Component Testing)
- Section 11 (Engine Controls - Pin Voltage Charts)
- Section 12 (Vacuum Diagrams)
- Section 13 (Engine Controls - Removal, Overhaul & Installation)
- Section 14 (Engine Performance - Wiring Diagrams)
- Section 15 (Wiring Diagrams)
- Section 16 (Engine Controls - Service & Adjustment Specifications)
- Section 17 (Engine Controls - On-Vehicle Adjustments)
- Section 18 (Engine Controls - Theory & Operation)
- Section 19 (Engine Controls - Basic Diagnostic Procedures)
- Section 20 (Engine Controls - Self-Diagnostics)
- Section 21 (Engine Controls - Self-Diagnostics)
- Section 22 (Engine Controls - Self-Diagnostics)
- Section 23 (Engine Controls - Trouble Shooting - No Codes)
- Section 24 (Engine Controls - System & Component Testing)
- Section 25 (Engine Controls - System & Component Testing)
- Section 26 (Engine Controls - Pin Voltage Charts)
- Section 27 (Vacuum Diagrams)
- Section 28 (Engine Controls - Removal, Overhaul & Installation)
- Section 29 (Wiring Diagrams)
- Section 30 (Engine Controls - On-Vehicle Adjustments - 4 CYL & V6)
- Section 31 (Engine Controls - Basic Diagnostic Procedures - 4 CYL & V6)
- Section 32 (Engine Controls - Self-Diagnostics)
- Section 33 (Engine Controls - Self-Diagnostics - 1.8L - XE, GXE)
- Section 34 (Engine Controls - Self-Diagnostics - Quest)
- Section 35 (Engine Controls - Trouble Shooting - No Codes - 4 CYL & V6)
- Section 36 (Engine Controls - System & Component Testing - 4 CYL & V6)
- Section 37 (Engine Controls - Pin Voltage Charts - 4 CYL & V6)
- Section 38 (Vacuum Diagrams)
- Section 39 (Engine Controls - Removal, Overhaul & Installation)
- Section 40 (Engine Performance Wiring Diagrams)
- Section 41 (Disc Brakes)
- Section 42 (Disc Brakes)
- Section 43 (Starters)
- Section 44 (Automatic A/C-Heater Systems)
- Section 45 (Automatic Transmission Diagnosis - U140E & U140F)
- Section 46 (System Wiring Diagrams)
- Section 47 (System Wiring Diagrams)
- Section 48 (System Wiring Diagrams)
- Section 49 (Overhaul - A650E)
- Section 50 (Automatic Transmission - Diagnosis)
- Section 51 (Diagnosis - U150E)
- Section 52 (Engine Controls - Self-Diagnostics - 3.2L)
- Section 53 (Automatic Transmission Shift Interlock Systems)
- Section 54 (Computer Relearn Procedures - Import)
- Section 55 (Engine Controls Self-Diagnostics - Pathfinder & QX4)
- Section 56 (Engine Controls - Self-Diagnostics)
- Section 57 (Air Bag Restraint Systems)
- Section 58 (Air Bag Restraint Systems)
- Section 59 (Air Bag Restraint Systems)
- Section 60 (Air Bag Restraint Systems)
- Section 61 (System Wiring Diagrams)
- Section 62 (System Wiring Diagrams)
- Section 63 (System Wiring Diagrams)
- Section 64 (System Wiring Diagrams)
- Section 65 (Power Door Locks, Trunk Lid & Fuel Door Release)
- Section 66 (Engine Controls - Service & Adjustment Specifications)
- Section 67 (Engine Controls - On-Vehicle Adjustments)
- Section 68 (Engine Controls - Theory & Operation)
- Section 69 (Engine Controls - Basic Diagnostic Procedures)
- Section 70 (Engine Controls - Self-Diagnostics)
- Section 71 (Engine Controls - Self-Diagnostics)
- Section 72 (Engine Controls - Self-Diagnostics)
- Section 73 (Engine Controls - Self-Diagnostics)
- Section 74 (Engine Controls - Self-Diagnostics)
- Section 75 (Engine Controls - Trouble Shooting - No Codes)
- Section 76 (Engine Controls - System & Component Testing)
- Section 77 (Engine Controls - System & Component Testing)
- Section 78 (Engine Controls - System & Component Testing)
- Section 79 (Engine Controls - Pin Voltage Charts)
- Section 80 (Engine Controls - Sensor Operating Range Charts)
- Section 81 (Vacuum Diagrams)
- Section 82 (Engine Controls (Removal & Installation))
- Section 83 (Engine Controls - On-Vehicle Adjustments)
- Section 84 (Engine Controls - Basic Diagnostic Procedures)
- Section 85 (Engine Controls - Self-Diagnostics)
- Section 86 (Engine Controls - Trouble Shooting - No Codes)
- Section 87 (Engine Controls - System & Component Testing)
- Section 88 (Engine Controls - Pin Voltage Charts)
- Section 89 (Engine Controls - Sensor Operating Range Charts)
- Section 90 (Vacuum Diagrams)
- Section 91 (Engine Controls - Service & Adjustment Specifications)
- Section 92 (Engine Controls - On-Vehicle Adjustments)
- Section 93 (Engine Controls - Basic Diagnostic Procedures)
- Section 94 (Engine Controls - Self-Diagnostics)
- Section 95 (Engine Controls Self-Diagnostics - Pathfinder)
- Section 96 (Engine Controls - Trouble Shooting - No Codes)
- Section 97 (Engine Controls - System & Component Testing)
- Section 98 (Engine Controls - Pin Voltage Charts)
- Section 99 (Vacuum Diagrams)
- Section 100 (Engine Controls - Self-Diagnostics (QG18DE))
- Section 101 (Multiplex Communication System)
- Section 102 (Engine Immobilizer System)
- Section 103 (Anti-Theft Systems)
- Section 104 (Remote Keyless Entry Systems)
- Section 105 (Power Mirrors)
- Section 106 (Power Seats)
- Section 107 (Cruise Control Systems)
- Section 108 (Instrument Panel)
- Section 109 (Steering Column Switches)
- Section 110 (Wiper/Washer Systems)
- Section 111 (Automatic Headlights)
- Section 112 (Power Moon Roofs)
- Section 113 (Anti-Lock)
- Section 114 (Anti-Lock)
- Section 115 (Multiplex Communication System)
- Section 116 (Body Control System)
- Section 117 (Instrument Panel)
- Section 118 (Steering Column Switches)
- Section 119 (Automatic Headlights & Lighting)
- Section 120 (Wiper/Washer Systems)
- Section 121 (Power & Heated Seats)
- Section 122 (Moon Roof)
- Section 123 (Power Windows)
- Section 124 (Power Door Locks & Liftgate)
- Section 125 (Anti-Theft System)
- Section 126 (Remote Keyless Entry)
- Section 127 (Engine Immobilizer)
- Section 128 (Cruise Control)
- Section 129 (Instrument Panel Diagnosis & Testing)
- Section 130 (Anti-Lock Brake System)
- Section 131 (Rear Window Defogger)
- Section 132 (Power Windows)
- Section 133 (Electronic Suspension)
- Section 134 (Electrical Component Locator)
- Section 135 (Smart Entrance Control Unit)
- Section 136 (Anti-Theft System)
- Section 137 (Power Door Locks)
- Section 138 (Remote Keyless Entry System)
- Section 139 (Instrument Panel)
- Section 140 (Engine Immobilizer System - Diagnosis)
- Section 141 (Fuses & Circuit Breakers)
- Section 142 (Servicing A/T)
- Section 143 (Front Suspension)
- Section 144 (Wheel Alignment Specifications & Adjustment Procedures)
- Section 145 (Timing Belt Replacement - 4.3L V8)
- Section 146 (Computer Relearn Procedures)
- Section 147 (Computer Relearn Procedures)
- Section 148 (System Wiring Diagrams)
- Section 149 (Engine Controls - Self-Diagnostics)
- Section 150 (Engine Controls - System & Component Testing)
- Section 151 (System Wiring Diagrams)
- Section 152 (System Wiring Diagrams)
- Section 153 (System Wiring Diagrams)
- Section 154 (Engine Controls Removal & Installation)
- Section 155 (System Wiring Diagrams)
- Section 156 (System Wiring Diagrams)
- Section 157 (System Wiring Diagrams)
- Section 158 (System Wiring Diagrams)
- Section 159 (System Wiring Diagrams)
- Section 160 (Engine Mechanical)
- Section 161 (Engine Mechanical)
- Section 162 (Engine Controls - Removal & Installation)
- Section 163 (Engine Controls - Self-Diagnostics)
- Section 164 (Engine Controls - Removal & Installation)
- Section 165 (Engine Controls - Removal & Installation)
- Section 166 (Air Bag Restraint Systems)
- Section 167 (Air Bag Restraint Systems)
- Section 168 (Air Bag Restraint Systems)
- Section 169 (Air Bag Restraint Systems)
- Section 170 (Air Bag Restraint Systems)
- Section 171 (Common Specs & Procedures)
- Section 172 (Computer Relearn Procedures)
- Section 173 (Specifications & Procedures)
- Section 174 (Wheel Alignment Specifications & Procedures)
- Section 175 (Wheel Alignment Specifications & Adjustment Procedures)
- Section 176 (Wheel Alignment Specifications & Procedures)
- Section 177 (Wheel Alignment Specifications & Adjustment Procedures)
- Section 178 (Brakes Mechanical)
- Section 179 (Electrical Component Locator)
- Section 180 (Disc & Drum)
- Section 181 (Electric Cooling Fans)
- Section 182 (Axle Shafts - Front)
- Section 183 (Axle Shafts)
- Section 184 (Charging System - Generators & Regulators)
- Section 185 (Front Suspension)
- Section 186 (Front Suspension)
- Section 187 (Cooling System Specifications & Drive Belt Routing)
- Section 188 (Rear Suspension)
- Section 189 (Rear Suspension)
- Section 190 (System Wiring Diagrams)
- Section 191 (System Wiring Diagrams)
- Section 192 (System Wiring Diagrams)
- Section 193 (Generators & Regulators)
- Section 194 (Automatic Transmission Servicing)
- Section 195 (Automatic Transmission Servicing)
- Section 196 (Generators & Regulators)
- Section 197 (Starters)
- Section 198 (Generators & Regulators)
- Section 199 (Servicing)
- Section 200 (Starting System)
- Section 201 (Starters)
- Section 202 (Air Bag Restraint Systems)
- Section 203 (Engine Mechanical - 2.5L)
- Section 204 (Engine Mechanical - 3.5L)
- Section 205 (General Information)
- Section 206 (Engine Cooling System)
- Section 207 (Tires, Wheels & Tire Pressure Monitoring System (TPMS))
- Section 208 (Seat Belts)
- Section 209 (Exterior & Interior)
- Section 210 (Front Seat)
- Section 211 (Rear Seat)
- Section 212 (Automatic Air Conditioner)
- Section 213 (Combination Meters)
- Section 214 (Warning Chime)
- Section 215 (Vehicle Information And Integrated Switch System /With Navigation System)
- Section 216 (Vehicle Information And Integrated Switch System /Without Navigation System)
- Section 217 (Voice Activated Control System)
- Section 218 (Front Wiper And Washer System)
- Section 219 (Audio)
- Section 220 (Navigation System)
- Section 221 (Air Conditioning)
- Section 222 (Propeller Shaft)
- Section 223 (Steering System)
- Section 224 (Power Tilt And Power Telescopic Steering Column)
- Section 225 (Air Conditioning System)
- Section 226 (Abs)
- Section 227 (Alignment Specifications & Procedures)
- Section 228 (General Information)
- Section 229 (Engine Lubrication System - 2.5L)
- Section 230 (Engine Cooling System - 2.5L)
- Section 231 (Exhaust System - 2.5L)
- Section 232 (Clutch)
- Section 233 (Manual Transmission)
- Section 234 (Automatic Transmission)
- Section 235 (Road Wheels & Tires)
- Section 236 (Power Steering Gear And Linkage)
- Section 237 (Seat Belt System)
- Section 238 (Power Door Lock System)
- Section 239 (Remote Keyless Entry System)
- Section 240 (Trunk Lid Opener)
- Section 241 (Power Window System)
- Section 242 (Rear Window Defogger)
- Section 243 (Sun Roof)
- Section 244 (Exterior Trim & Interior Trim)
- Section 245 (Instrument Panel)
- Section 246 (Seat System)
- Section 247 (Automatic Air Conditioner)
- Section 248 (Power Supply Routing Circuit)
- Section 249 (IPDM E/R (Intelligent Power Distribution Module Engine Room))
- Section 250 (Ground Circuit)
- Section 251 (Combination Meters)
- Section 252 (Warning System - Warning Lamps)
- Section 253 (BCM (Body Control Module))
- Section 254 (Can System)
- Section 255 (Audio System, Visual System & Telephone System)
- Section 256 (Manual Air Conditioner)
- Section 257 (General Information)
- Section 258 (Engine Mechanical)
- Section 259 (Engine Cooling System)
- Section 260 (Exhaust System)
- Section 261 (Clutch System)
- Section 262 (Manual Transaxle)
- Section 263 (Transfer Case - ATX14A)
- Section 264 (Driveshaft)
- Section 265 (Front Final Drive)
- Section 266 (Abs)
- Section 267 (Body & Trim)
- Section 268 (Harness Connector)
- Section 269 (Power Supply Routing)
- Section 270 (Headlamp (For USA))
- Section 271 (Headlamp (For CANADA) Daytime Light System)
- Section 272 (Parking License & Tail Lamps)
- Section 273 (Meters And Gauges)
- Section 274 (Warning System - Warning Lamps)
- Section 275 (Audio System)
- Section 276 (Power Sunroof)
- Section 277 (Vehicle Security (Theft Warning) System)
- Section 278 (Can Communication)
- Section 279 (Wiper System & Washer System & Horn System)
- Section 280 (Automatic Transmission)
- Section 281 (Engine Lubrication System - 3.5L)
- Section 282 (Engine Cooling System - 3.5L)
- Section 283 (Exhaust System - 3.5L)
- Section 284 (Anti-Lock Brake System & Traction Control System - Abs/TCS)
- Section 285 (Standard Bolt)
- Section 286 (Automatic Transmission (Service Specifications))
- Section 287 (Engine Control System - Diagnosis)
- Section 288 (Electronic Modulated Suspension - Diagnosis)
- Section 289 (Abs W/ EBD - Diagnosis)
- Section 290 (Abs W/EBD & BA & TRAC & VSC System - Diagnosis)
- Section 291 (Automatic Transaxle - Diagnosis)
- Section 292 (Air Conditioning System - Diagnosis)
- Section 293 (Lighting System - Diagnosis)
- Section 294 (Wiper & Washer - Diagnosis)
- Section 295 (Audio System - Diagnosis)
- Section 296 (Power Window Control System - Diagnostics)
- Section 297 (Power Mirror Control System - Diagnosis)
- Section 298 (Combination Meter - Diagnosis)
- Section 299 (Front Power Seat Control System (With Memory) - Diagnosis)
- Section 300 (Power Door Lock - Diagnosis)
- Section 301 (Wireless Door Lock - Diagnosis)
- Section 302 (Luggage Compartment Door Opener System - Diagnosis)
- Section 303 (Key Unlock Warning System - Diagnosis)
- Section 304 (Engine Immobilizer System - Diagnosis)
- Section 305 (Theft Deterrent System - Diagnosis)
- Section 306 (Multiplex Communication System - Diagnosis)
- Section 307 (Can Communication System - Diagnosis)
- Section 308 (Cruise Control System - Diagnosis)
- Section 309 (Engine Control System)
- Section 310 (Fuel System)
- Section 311 (Emission Control System)
- Section 312 (Intake Air Control System)
- Section 313 (Engine (Mechanical))
- Section 314 (Engine Exhaust Assembly)
- Section 315 (Cooling System)
- Section 316 (Lubrication System)
- Section 317 (Ignition System)
- Section 318 (Wheel Alignment)
- Section 319 (Abs Brake Sensors/Actuators)
- Section 320 (Automatic Transaxle (On-Vehicle Service))
- Section 321 (Steering Column)
- Section 322 (Power Steering)
- Section 323 (Heater & Air Conditioner)
- Section 324 (Instrument Panel/Meter)
- Section 325 (Theft Deterrent Systems)
- Section 326 (Sliding Roof System)
- Section 327 (Cruise Control)
- Section 328 (Engine Hood/Door (Service Specifications))
- Section 329 (Steering Column)
- Section 330 (Headlight Dimmer Switch)
- Section 331 (Audio & Visual System)
- Section 332 (Instrument Panel/Meter)
- Section 333 (Rear Seat)
- Section 334 (Front Door)
- Section 335 (Rear Door)
- Section 336 (Introduction)
- Section 337 (Automatic Transmission (Service Specifications))
- Section 338 (Automatic Transmission - Diagnosis)
- Section 339 (Power Tilt & Telescopic Steering Column - Diagnosis)
- Section 340 (Power Seat Control System - Diagnosis)
- Section 341 (Rear Left Seat Control System - Diagnosis)
- Section 342 (Rear Right Seat Control System - Diagnosis)
- Section 343 (Rear Seat Switch System - Diagnosis)
- Section 344 (Theft Deterrent System - Diagnosis)
- Section 345 (Cruise Control System - Diagnosis)
- Section 346 (Engine Immobilizer System - Diagnosis)
- Section 347 (Combination Meter System - Diagnosis)
- Section 348 (Combination Switch Control System - Diagnosis)
- Section 349 (Steering Pad Switch System - Diagnosis)
- Section 350 (Rain Sensor System - Diagnosis)
- Section 351 (Sliding Roof - Diagnosis)
- Section 352 (Driver Side Junction Block (Body No. 2 Control System) - Diagnosis)
- Section 353 (Passenger Side Junction Block (Body No. 3 ) Control System - Diagnosis)
- Section 354 (Luggage Room Junction Block (Body No. 4) Control System - Diagnosis)
- Section 355 (Front Light (Body No. 5) Control System - Diagnosis)
- Section 356 (Driver Door Control System - Diagnosis)
- Section 357 (Passenger Door Control System - Diagnosis)
- Section 358 (Rear Left Door Control System - Diagnosis)
- Section 359 (Rear Right Door Control System - Diagnosis)
- Section 360 (Gateway System - Diagnosis)
- Section 361 (Audio System - Diagnosis)
- Section 362 (LEXUS Navigation System - Diagnosis)
- Section 363 (LEXUS Link System - Diagnosis)
- Section 364 (LEXUS Park Assist System - Diagnosis)
- Section 365 (Air Conditioning System - Diagnosis)
- Section 366 (Troubleshooting)
- Section 367 (Power Source)
- Section 368 (Ignition Switch & Key Unlock Warning Switch)
- Section 369 (Headlight & Taillight System)
- Section 370 (Headlight Beam Level Control System)
- Section 371 (Fog Light System)
- Section 372 (Turn Signal & Hazard Warning System)
- Section 373 (Illumination Light System)
- Section 374 (Interior Light System)
- Section 375 (Stop Light System)
- Section 376 (Headlight Cleaner System)
- Section 377 (Wiper & Washer System)
- Section 378 (Combination Meter)
- Section 379 (Defogger System)
- Section 380 (Power Window Control System)
- Section 381 (Power Door Lock Control System)
- Section 382 (Wireless Door Lock Control System)
- Section 383 (Power Seat Control System)
- Section 384 (Power Mirror Control System)
- Section 385 (Power Shoulder Belt Anchorage System)
- Section 386 (Electro Chromic Mirror System)
- Section 387 (Climate Control Seat System)
- Section 388 (Fuel Lid Opener System)
- Section 389 (Door Closer System)
- Section 390 (Luggage Compartment Door Closer System)
- Section 391 (LEXUS Park Assist System)
- Section 392 (Rear Sunshade System)
- Section 393 (Clock)
- Section 394 (Overhead Junction Block)
- Section 395 (Garage Door Opener System)
- Section 396 (Horn System)
- Section 397 (Sliding Roof - Removal & Installation)
- Section 398 (Instrument Panel)
- Section 399 (Rear Seat (Fixed Type))
- Section 400 (Rear Seat (Power Adjuster Type))
- Section 401 (Seat Belt)
- Section 402 (Seat Belt PRETENSIONER (Front))
- Section 403 (Seat Belt PRETENSIONER (Rear))
- Section 404 (Seat Heater System)
- Section 405 (Fuel System)
- Section 406 (Starting System)
- Section 407 (Charging System)
- Section 408 (Seat Belt System)
- Section 409 (Service Data And Specifications (SDS) Engine Electrical)
- Section 410 (Shift Lock System)
- Section 411 (O/D Direct Clutch Speed Sensor)
- Section 412 (ATF Oil Temperature Sensor)
- Section 413 (Automatic Transmission Unit (Removal & Installation))
- Section 414 (Front Axle)
- Section 415 (Introduction)
- Section 416 (Tire & Wheel)
- Section 417 (Seat Belt)
- Section 418 (Lighting)
- Section 419 (Power Window Control System)
- Section 420 (Mirrors)
- Section 421 (Seats)
- Section 422 (Doors)
- Section 423 (Bumpers)
- Section 424 (Engine Exhaust Assembly)
- Section 425 (Exterior/Interior Trim)
- Section 426 (Firing Order & Cylinder Identification)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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