JMA Automotive Key Blank Numbering System

by Anthony El Harif
Created: December 3, 2010

JMA manufactures more than 30,000 different key blanks, requiring a large and efficient key numbering system.

By Anthony El Harif JMA National Sales Manager JMA is a worldwide key blank, key machine and cloning equipment manufacturer with production facilities throughout Europe, North and South America. JMA manufactures more than 30,000 different cylindrical and automotive key blanks for the...

To access the remainder of this piece of premium content, you must be registered with Locksmith Ledger. Already have an account? Login

Register in seconds by connecting with your preferred Social Network.

Complete the registration form.

First Name Required

Last Name Required

Display Name Required

Email Required

Confirm Email Required

Company Name Required

Job Title Required

Country Required

Zip/Postal Code Required

Forums username Required

Reader (order) Number Optional

What category best describes your business? Required

What category best describes your job title? Required

The first portion of the JMA key blank part number is the transponder used to operate the vehicle. Transponders can be divided into two main groups programmable and clonable. The H72PT key used in the example above uses a Texas Instruments Fixed Code programmable transponder. JMA’s version of Texas Instrument’s fixed code transponder is a TP02 transponder.

JMA’s part number for the popular Ford H72PT key blank is TP02FO-15D.P. The first portion of the part number is the Texas Instruments fixed value transponder, the TP02 that is embedded in this key blank. The second portion is the key blank part number FO-15D.P. The key blank number will always begin with the automobile manufacturer. For this key blank, “FO” indicates Ford. The “15” is the sequential number and the “D.P” indicates a reversed keyway and plastic head.

In addition to the fixed value programmable transponder, the FO-15D.P key blank is available with a clonable transponder or no transponder. JMA’s clonable version of Texas Instrument’s fixed code transponder is a TPX1FO-15P.D, with “TPX1” indicating the fixed value clonable transponder. The JMA Ford key blank without transponder would be the TP00FO-15P.D, with “TP00” indicating no transponder.

Ford, Lincoln, Mercury
All Ford, Lincoln and Mercury vehicles sold in North America can be operated with transponder-equipped keys having five different transponders. They are:

Programmable Ford Transponders
“TP02” fixed value Texas Instruments transponder similar to H72PT
“TP06” encrypted Texas Instruments transponder similar to H74PT/H86PT
“TP20” encrypted Texas Instruments transponder similar to 599114

Clonable Ford Transponders
“TPX1” fixed value clonable transponder for TI
“TPX2” encrypted clonable transponder for TI

The JMA Ford 8-cut transponder key blanks cross-reference is:
Programmable transponder Clonable Transponder
H72PT TP02FO-15D.P TPX1FO-15D.P
H74PT TP06FO-15D.P TPX2FO-15D.P
H86PT TP06FO-15D.P TPX2FO-15D.P
599114 TP20FO-30D.P TPX2FO-30D.P

General Motors
For General Motor’s vehicles, there are more than five different transponders. They are:
Programmable GM Transponders
“TP05” fixed value Megamos transponder similar to B97PT (PK3)
“TP08” encrypted Megamos transponder similar to B112PT (PK3+)
“TP12” encrypted Philips transponder similar to B111PT (C+)
Clonable GM Transponders
“TP05” fixed value Megamos transponder similar to B98PT5
“TPX3” Philips Second Generation Crypto transponder

The JMA General Motors 10-cut transponder key blanks cross-reference is:
Programmable transponder Clonable Transponder
B97PT TP05GM-27V.P TP05GM-27.P
B112PT TP08GM-28.P N.A.
B111PT TP12GM-37.P TPX3GM-37.P
Note: The GM TP05 chip can be used for both cloning and programming.

Chrysler, Dodge, Jeep
For the Chrysler family of vehicles including Dodge and Jeep vehicles, there are four different transponders. They are:

Programmable Chrysler Transponders
“TP21” encrypted Texas Instruments transponder similar to Y160PT
“TP12” encrypted Philips transponder similar to Y164PT

Clonable Chrysler Transponders
“TPX2” Texas Crypto transponder
“TPX3” Philips Second Generation Crypto transponder

The JMA Chrysler 8-cut transponder key blanks cross-reference is:
Programmable transponder Clonable Transponder
Y160PT TP21CHR-15.PG TPX2CHR-15.PG
Y164PT TP12CHR-15.PC TPX3CHR-15.PC

Note: The letter following the “P” indicates color for Chrysler key blank head. The “G” indicates gray head color and the “C” indicates tan head color.

Blanks Plus Or Minus Transponders
JMA is the only known key blank manufacturer that makes its transponder-based automotive key blanks available with or without the transponder in shells so a transponder can be removed and installed. This provides the capability of removing the transponder chip from a worn or broken key and installing it into a new shell. No programming or cloning required and the cuts can either be originated or duplicated.

Using JMA key blanks helps to limit the number of key blanks that must be stocked to satisfy your customer’s requirements. For some vehicles, there are three transponder options for a specific keyway. This could include a fixed value transponder, an encrypted transponder and a clonable transponder. Depending upon the customer’s need, the one shell can accommodate any of the three transponders. This eliminates the need to stock three different transponder-equipped key blank numbers as the transponders chips and the key blanks can be purchased separately.