How to decode a 2003 Infiniti M45 VIN

Characters 1-3 of a 2003 Infiniti M45 VIN

A World Manufacturer Identifier (WMI) is a unique sequence of characters assigned to automotive manufacturers to identify the location, marque, and type of vehicles they produce. For the 2003 Infiniti M45, the WMI is a critical piece of its Vehicle Identification Number (VIN), helping to distinguish its origin, make, and model accurately. This specific WMI designates that the car is manufactured by Nissan Motor Company, Ltd., indicating its prestigious Japanese origin, specifically from Tokyo’s Chuo-Ku. It applies to a passenger car produced during the model years of 2003 and 2004, as well as 2006 through 2009, underlining its place within a specific production timeline. Through the lens of the WMI, each 2003 Infiniti M45 is given its unique identity, cementing its status within the automotive world.

List of WMI Codes for a 2003 Infiniti M45

WMI: JNK

Model Years Covered: 2003-2004, 2006-2009
Example VIN: JNKAY41E03M000347
Manufacturer Name: Nissan Motor Company, Ltd.
Vehicle Type: Passenger Car
City: Chuo-Ku
State or Province: Tokyo
Country: Japan

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2003 Infiniti M45 VIN

These characters correspond to components like:

Engine type
Transmission
Model or trim
Body style
Gross vehicle weight range

Below find the known vehicle descriptor codes for a 2003 Infiniti M45:

Known VDS for a 2003 Infiniti M45
AY41E

Auto manufacturers have some discretion to decide how they want to code this section, but its contents and decoded results are generally consistent.

Character 9 is the “check digit” in a 2003 Infiniti M45 VIN.

Based on a formula developed by the US Department of Transportation, it helps reduce fraud by ensuring the validity of the VIN.

10th Character in the 2003 Infiniti M45 VIN — Year Code

Year Code	Year
3	2003

11th Character in the 2003 Infiniti M45 VIN — Plant Code(s)

Known 2003 Infiniti M45 Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
M	Tochigi	Kaminokawa	Japan	Tochigi Plant	JNKAY41E03M000347

VIN Characters 12 - 17 of a 2003 Infiniti M45

The final 6 characters in a 2003 Infiniti M45’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your Infiniti M45’s VIN below:

How to find a 2003 Infiniti M45’s VIN?

Locating the VIN number on your 2003 Infiniti M45 is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your 2003 Infiniti M45. You can usually see the VIN through the bottom corner of the windshield.
Open the driver’s side door and inspect the door jamb area. There should be a sticker or plate with the VIN where the door latches when closed.
Examine the firewall of the vehicle’s engine bay, as the VIN may be stamped on a plate in this area for the 2003 Infiniti M45.
Look at the vehicle registration documents or the insurance card for your Infiniti M45, as the VIN is commonly printed on these documents.
If your Infiniti M45 has a rear-wheel drive, check the frame near the driver’s side rear tire. It’s hidden, but you can sometimes see the VIN there after moving aside cables or hoses.

What info can a 2003 Infiniti M45 VIN reveal?

Model Year: The VIN can reveal the vehicles model year being the year 2003, providing insights into the age and potential technological features of the vehicle.
Body Class and Doors: A VIN can specify the body class. For this specific model, it suggests a Sedan/Saloon design, potentially indicating the vehicle’s size, style, and seating capacity.
Engine Type: The engine has a V-shaped configuration with 8 cylinders and a displacement of 4.5 liters, highlighting its power potential.
Fuel Efficiency: The vehicle is powered by gasoline, which might provide an idea about fuel efficiency and performance characteristics.
Safety Features: Safety features such as curtain airbags, front airbags, and side airbags for 1st row occupants are mentioned in the VIN, possibly underlining a focus on safety.
Drive Type: The drive type is specified as 4x2, which may provide information on the vehicle’s drivetrain and potential handling capabilities.
Manufacturing Details: The vehicle was manufactured in Tochigi, Japan by the Tochigi Plant, possibly influencing overall build quality and engineering standards.

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Sample VIN Decode Report for a 2003 Infiniti M45

Vehicle Spec	Value
Body Class	Sedan/Saloon
Curtain Air Bag Locations	1st Row (Driver and Passenger)
Displacement (CC)	4500.0
Displacement (CI)	274.60684842629
Displacement (L)	4.5
Doors	4
Drive Type	4x2
Engine Configuration	V-Shaped
Engine Number of Cylinders	8
Front Air Bag Locations	1st Row (Driver and Passenger)
Fuel Type - Primary	Gasoline
Model	M45
Model Year	2003
Plant City	Tochigi
Plant Company Name	Tochigi plant
Plant Country	Japan
Plant State	Kaminokawa
Seat Belt Type	Manual
Side Air Bag Locations	1st Row (Driver and Passenger)
Vehicle Descriptor	JNKAY41E*3M
Vehicle Type	Passenger Car
Sample_VIN	JNKAY41E03M000347