2009 Infiniti M45 BaseFACTORY OEM SERVICE PROCEDURE

Major Components And Control System

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
SYSTEM INPUT AND OUTPUT

System Input Output
Remote control entry system Key fob
  • All-door locking actuator
  • Fuel lid Lock actuator
  • Turn signal lamp (LH, RH)
  • Combination meter
Intelligent key system Intelligent key unit
  • All-door locking actuator
  • Fuel lid Lock actuator
  • Turn signal lamp (LH, RH)
  • Combination meter
Power door lock system
  • Power window main switch (door lock and unlock switch)
  • Power window sub switch (passenger side) (door lock and unlock switch)
 All-door locking actuator
Power supply (IGN) to power window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof and power seat Battery power supply Power window, sunroof system and power seat
Panic alarm
  • Key switch
  • Key fob
 IPDM E/R
Theft warning system
  • All-door switch
  • Hood switch
  • Key fob
  • Power window main switch (door lock and unlock switch)
  • Power window sub switch (passenger side) (door lock and unlock switch)
  • IPDM E/R
  • Security indicator lamp
Auto light system
  • Optical sensor
  • Combination switch
  • Ignition switch
 IPDM E/R
Exterior lamp battery saver control
  • Ignition switch
  • Combination switch
 IPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system
  • Combination meter
  • ECM
  • Combination switch
  • Ignition switch
 IPDM E/R
Parking, license plate, side marker and tail lamps Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp
  • Combination switch
  • Ignition switch
  • Turn signal lamp
  • Combination meter
Hazard lamp Hazard switch
  • Turn signal lamp
  • Combination meter
Room lamp timer
  • Key switch
  • Key fob
  • Power window main switch (door lock and unlock switch)
  • Front door switch driver side
  • All-door switch
 Interior room lamp
Key warning chime
  • Key switch
  • Front door switch driver side
 Combination meter (warning buzzer)
Light warning chime
  • Combination switch
  • Key switch
  • Front door switch driver side
 Combination meter (warning buzzer)
Seat belt warning chime
  • Combination meter [Seat belt buckle (driver side) switch]
  • Ignition switch
 Combination meter (warning buzzer)
Front wiper and washer system
  • Combination switch
  • Combination meter
  • Ignition switch
 IPDM E/R
Rear wiper and washer system
  • Combination switch
  • Ignition switch
 Rear wiper motor
Rear window defogger
  • Rear window defogger switch
  • Ignition switch
 IPDM E/R
A/C switch signal Unified meter and A/C amp. ECM
Blower fan switch signal Unified meter and A/C amp. ECM
Low tire pressure warning system Remote keyless entry receiver Combination meter
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.