How to decode a 1999 Infiniti Q45 VIN

Characters 1-3 of a 1999 Infiniti Q45 VIN

A World Manufacturer Identifier (WMI) is the initial sequence of the Vehicle Identification Number (VIN), denoting the manufacturer, vehicle type, and country of origin. For example, the 1999 Infiniti Q45, produced by Nissan Motor Company, Ltd., has a WMI within its VIN, indicating its origins. Specifically, the designated WMI for these vehicles is “JNK,” where “J” signifies Japan as the country of manufacture, “N” represents Nissan as the manufacturer, and “K” indicates that the vehicle is a passenger car. These identifiers are crucial in tracking, registering, and recalling automobiles, offering a systematic way to recognize where and by whom a vehicle was made. The production of this model notably spans years preceding and succeeding 1999, highlighting its enduring presence in Nissan’s luxury lineup.

List of WMI Codes for a 1999 Infiniti Q45

WMI: JNK

Model Years Covered: 1990-1991, 1993-2006
Example VIN: JNKBY31A0XM603624
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 1999 Infiniti Q45 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 1999 Infiniti Q45:

Known VDS for a 1999 Infiniti Q45
BY31A

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 1999 Infiniti Q45 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 1999 Infiniti Q45 VIN — Year Code

Year Code	Year
X	1999

11th Character in the 1999 Infiniti Q45 VIN — Plant Code(s)

Known 1999 Infiniti Q45 Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
M	Tochigi	Kaminokawa	Japan	Tochigi Plant	JNKBY31A0XM603624

VIN Characters 12 - 17 of a 1999 Infiniti Q45

The final 6 characters in a 1999 Infiniti Q45’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your Infiniti Q45’s VIN below:

How to find a 1999 Infiniti Q45’s VIN?

Locating the VIN number on your 1999 Infiniti Q45 is key for identification. Here’s how to find it:

Inspect the dashboard on the driver’s side of your 1999 Infiniti Q45. The VIN can usually be found where the dashboard meets the windshield.
Look at the door jamb on the driver’s side of your Infiniti Q45 for a VIN sticker or plate where the door latches when closed.
Check the engine block of your 1999 Infiniti Q45, as the VIN is sometimes stamped onto the engine itself.
Examine the trunk area; sometimes there is a label or plate with the VIN under the trunk lid or in the spare tire compartment of the Infiniti Q45.
Review your vehicle’s documentation, such as the title, registration, or insurance papers, where the VIN of your 1999 Infiniti Q45 is recorded.

What info can a 1999 Infiniti Q45 VIN reveal?

Model Year: The VIN can reveal the vehicle’s model year as 1999, providing insights into the age and potential market value of the vehicle.
Manufacturing Details: The vehicle was manufactured in Tochigi, Japan, at the Tochigi Plant, which provides valuable insight into the vehicle’s origin and historical context.
Vehicle Specifications: The vehicle is a Q45 model, categorized as a Sedan/Saloon with a V-Shaped engine configuration and an engine model of VH41, contributing to its performance and design characteristics.
Engine Size and Performance: It features an engine with a displacement of 4100.0 CC (4.1 liters), boasting an 8-cylinder configuration, indicative of robust performance and power potential.
Fuel Efficiency: The primary fuel type for this vehicle is Gasoline, potentially indicating its fuel usage characteristics and refueling needs.
Safety Features: Equipped with front airbags for both the driver and passenger in the 1st row and side airbags for the 1st row occupants, enhancing its safety credentials and occupant protection.
Restraint and Protection: The vehicle comes with manual seat belts and a note on “3-Point manual belts,” signifying the type of restraint system employed for occupant safety, contributing to its protective features.

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Sample VIN Decode Report for a 1999 Infiniti Q45

Vehicle Spec	Value
Body Class	Sedan/Saloon
Displacement (CC)	4100.0
Displacement (CI)	250.19735078840
Displacement (L)	4.1
Doors	4
Engine Configuration	V-Shaped
Engine Model	VH41
Engine Number of Cylinders	8
Front Air Bag Locations	1st Row (Driver and Passenger)
Fuel Type - Primary	Gasoline
Model	Q45
Model Year	1999
Other Restraint System Info	3-Point manual belts
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	JNKBY31A*XM
Vehicle Type	Passenger Car
Sample_VIN	JNKBY31A0XM603624