Question about the VIN Check-sum

Reply Subscribe

Thread Tools

Search this Thread

May 26, 2001 | 07:55 AM

Rob P

Thread Starter

Supreme Member

iTrader: (1)

Joined: Jul 1999

Posts: 1,334

Likes: 1

From: Key West, Florida!

Car: 89RSconvtZZ4TPI

Engine: ZZ4TPI

Transmission: 700R4 TRIPP TRANNY

Question about the VIN Check-sum

Lets say the VIN is 1G1FP33F1NL119097 (my 92)
does anyone know how GM used the check-sum digit? I have over 100 92Z28's registered and can't figure it out.
I know normally in the military we took something like a latitude and longitude say
3615N 17000W and it would come out to
3615N5 17000W8
Thus by adding the numbers together you arrived at the checksum and could determine if the numbers arrived intact or where garbled in transmission.
I can't get that logic to work on VIN numbers.

------------------
Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

May 26, 2001 | 06:06 PM

82RECAROTA

Senior Member

Joined: Feb 2001

Posts: 798

Likes: 0

Last edited by 82RECAROTA; Apr 10, 2002 at 06:19 PM.

May 26, 2001 | 09:34 PM

Guest

Guest

Posts: n/a

The VIN decoder on this site also tells how the checksum is calculated.

May 27, 2001 | 07:05 AM