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Factory Anti-Theft Bypass and Databus Reference Guide
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Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

ACURA
1.7 EL 2001-02 556U     Megamos    
3.5 EL 1998-02 556U     Megamos    
CL 1998-99 556U, 556H     Megamos    
CL 2000-03 555H, 556H 556U   Megamos    
Integra 2000-01 555U, 556H     Megamos    
MDX Truck 2001-02 555H, 556H 556U   Megamos    
MDX Truck 2003-06 555I, 556H 556U   Megamos    
NSX 1997-05 556U     Megamos    
RD-X 2003 556U     Megamos    
RL 1997-04 556U     Megamos    
RL 2005-06 Custom   Transponder Megamos    
RSX 2002-06 555I, 556H 556U   Megamos    
TL 1999-03 555H, 556H 556U   Megamos    
TL 2004-06 556U, 556H     Megamos    
TSX 2004-06 556U, 556H     Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

AUDI
A4 2000-04 555B, 556U Doc 1056   Megamos    
A6 2000-04 555B, 556U Doc 1056   Megamos    
A8 2000-03 555B, 556U Doc 1056   Megamos    
Allroad 2001-04 555B, 556U Doc 1056   Megamos    
Quattro 2002 556U     Megamos    
S4 2002 555B, 556U Doc 1056   Megamos    
S6 2002 556U     Megamos    
S8 2002 555B, 556U Doc 1056   Megamos    
TT 2000-04 555B, 556U Doc 1056   Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

BMW
All Models 1995-04 555B, 556U Doc 1060 EWS III Philips    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

BUICK
Century 1993-05 VATS Kit Doc 1049 VATS GM    
LaCrosse 2005-06 556U   Passkey 3 Megamos 457G  
Lesabre 1992-99 VATS Kit Doc 1049 VATS GM    
Lesabre 2000-05 555G 556U Passkey 3 Megamos 457G Type A
Luerne 2006 556U   Passkey 3+ Megamos    
Park Avenue 1991-96 VATS Kit Doc 1049 VATS GM    
Park Avenue 1997-05 555G 556U Passkey 3 Megamos 457G Type A
Rainier 2004-06 555L   Passlock 2 Megamos 457G  
Reatta 1990-91 VATS Kit Doc 1049 VATS GM    
Regal 1993-04 VATS Kit Doc 1049 VATS GM    
Rendezvous 2002-06 555G 556U Passkey 3 Megamos 457G Type A
Riviera 1990-99 VATS Kit Doc 1049 VATS GM    
Roadmaster 1993-96 VATS Kit Doc 1049 VATS GM    
Skylark 1996-98 555L   Passlock 1 Megamos    
Terraza 2005-06 556U   Passkey 3 Megamos    
Ultra 1997-02 555G 556U Passkey 3 Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

CADILLAC
Allante 1991-93 VATS Kit Doc 1049 VATS GM    
Brougham 1990-96 VATS Kit Doc 1049 VATS GM    
Catera 1997-98 556U   Passkey 3 Philips    RW2
Catera 1998-01 556U   Passkey 3 Philips    
Concours 1994-99 VATS Kit Doc 1049 VATS GM    
Concours 2000-01 555G 556U Passkey 3 Megamos    
CTS 2003-06 556U   Passkey 3 + Megamos    
De Ville 1990-99 VATS Kit Doc 1049 VATS GM    
De Ville 2000-05 555G 556U Passkey 3 Megamos   Type A
DTS 2006 556U   Passkey 3 + Megamos    
Eldorado 1991-02 VATS Kit Doc 1049 VATS GM    
Escalade 1999-02 555L 457G Passlock 2      
Escalade 2003-06 555L 457G Passlock 2   456G  
Escalade EXT 2002 555L 457G Passlock 2      
Escalade EXT 2003-06 555L 457G Passlock 2   456G  
ESV 2003-06 555L 457G Passlock 2   456G  
Fleetwood 1990-96 VATS Kit Doc 1049 VATS GM    
Seville 1991-93 VATS Kit Doc 1049 VATS GM    
Seville SLS 1998-04 555G 556U Passkey 3 Megamos 457G Type A
Seville STS 1994 VATS Kit Doc 1049 VATS GM 457G  
Seville STS 1998-03 555G 556U Passkey 3   457G  
SRX 2004-06 556U   Passkey 3 +   457G  
STS 2005-06 Custom   Transponder      
XLR 2004-06 Custom   Transponder      
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

CHEVROLET
6.5L, 6.6L Diesel 1998-02 555L   Passlock 2 Megamos    
6.6L Diesel 2003 555L   Passlock 2 Megamos 456G  
Astro 1998-05 555L 457G Passlock 2 Megamos   Type A
Avalanche 2002 555L 457G Passlock 2 Megamos   Type A
Avalanche 2003-06 555L 457G Passlock 2 Megamos 456G Type A
Aveo 2004-06 555L Note 4 Passlock 2 Megamos   Type A
Blazer 1998-05 555L 457G Passlock 2 Megamos   Type A
C/K Pick Up 1998-02 555L 457G Passlock 2 Megamos    
C/K Pick Up 2003-05 555L 457G Passlock 2 Megamos 456G  
C/K Pick Up Diesel 1999-02 555L 457G Passlock 2 Megamos    
C/K Pick Up Diesel 2003-05 555L 457G Passlock 2 Megamos 456G  
Camaro 1986-02 VATS Kit Doc 1049 VATS GM    
Caprice 1993-96 VATS Kit Doc 1049 VATS GM    
Cavalier 1996-99 555L   Passlock Megamos   Type A
Cavalier 2000-05 555L 457G Passlock 2 Megamos   Type A
Cobalt 2005 555L Doc 1610 Passlock 2 Megamos   Type A
Cobalt 2006 556U   Passkey 3 + Megamos   Type A
Colorado 2004-06 556L Doc 1603 Transponder      
Corvette 1984-04 VATS Kit Doc 1049 VATS GM    
Corvette 2005-06 Custom   Transponder      
Express Van 1998-06 555L 457G Passlock 2 Megamos   Type A
Equinox 2005-06 555L   Passlock 2 Megamos    
HHR 2006 556L Doc 1610 Passlock 2 Megamos    
Impala SS 1998 VATS Kit Doc 1049 VATS GM    
Impala SS 2000-05 555L 457G Passlock 2 Megamos   Type A
Impala SS 2006 556U   Passkey 3 + Megamos   Type A
Lumina 1995-00 VATS Kit Doc 1049 VATS GM    
Malibu 1997-03 555L   Passlock 2 Megamos   Type A
Malibu 2004-06 556U   Passkey 3 + Megamos    
Malibu Maxx 2004-06 556U   Passkey 3 + Megamos    
Monte Carlo 1997-99 VATS Kit Doc 1049 VATS      
Monte Carlo 2000-05 555L 457G Passlock 2 Megamos   Type A
Monte Carlo 2006 556U   Passkey 3 + Megamos   Type A
S-10 Pick Up 1998 555L   Passlock 2 Megamos   Type A
S-10 Pick Up 1999-04 555L 457G Passlock 2 Megamos   Type A
SSR 2003-06 555L   Passlock 2 Megamos    
Silverado 1998-02 555L   Passlock 2 Megamos   Type A
Silverado 2003-06 555L 457G Passlock 2 Megamos 456G  
Suburban 1998-02 555L   Passlock 2 Megamos   Type A
Suburban 2003-06 555L 457G Passlock 2 Megamos 456G  
Tahoe 1998-02 555L   Passlock 2 Megamos   Type A
Tahoe 2003-06 555L 457G Passlock 2 Megamos 456G  
Tahoe 2007 556U   Passkey 3 + Megamos    
Trailblazer 2002-06 555L 457G Passlock 2 Megamos 455G  
Uplander 2005-06 556U   Passkey 3 Megamos    
Van 1998 555L   Passlock 2 Megamos   Type A
Venture 1999-05 555G 556U Passkey 3 Megamos 457G  
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

CHRYSLER**                         **Cars with the immobilizers system all have gray key heads on the key
300 2005-06 556C 556U Sentry Key Texas Inst.   Type F
300M 1999-04 555C 556U Sentry Key Texas Inst.   Type F
Cirrus 2000 555C 556U Sentry Key Texas Inst.   Type F
Concorde 1998-04 555C 556U Sentry Key Texas Inst.   Type F
Crossfire 2004-05 556U   Sentry Key Texas Inst.   Type F
LHS 1999-02 555C 556U Sentry Key Texas Inst.   Type F
Pacifica 2004-06 556C 556U Sentry Key Texas Inst.   Type F
Prowler 2001-02 555C 556U Sentry Key Texas Inst.   Type F
PT Cruiser 2001-05 555C 556U Sentry Key Texas Inst.   Type F
PT Cruiser 2006 556C 556U Sentry Key Texas Inst.   Type F
Sebring Sedan 2001-06 555C 556U Sentry Key Texas Inst.   Type F
Sebring Conv. 1998-06 555C 556U Sentry Key Texas Inst.   Type F
Sebring Coupe 2001-05 556U   Sentry Key Texas Inst.   Type F
Town & Country 2001-03 555C 556U Sentry Key Texas Inst.   Type F
Town & Country 2004-06 556C 556U Sentry Key Texas Inst.   Type F
Voyager 2001-03 555C 556U Sentry Key Texas Inst.   Type F
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

DODGE**                         **Cars with the immobilizers system all have gray key heads on the key
Caravan 2001-03 555C 556U Sentry Key Texas Inst.   Type F
Caravan 2004-05 556C 556U Sentry Key Texas Inst.   Type F
Charger 2006 556C 556U Sentry Key Texas Inst.   Type F
Dakota 2001-04 555C 556U Sentry Key Texas Inst.   Type F
Dakota 2005 556C 556U Sentry Key Texas Inst.   Type F
Durango 2001-03 555C 556U Sentry Key Texas Inst.   Type F
Durango 2004-05 556U   Sentry Key Texas Inst.   Type F
Intrepid 1998-04 555C 556U Sentry Key Texas Inst.   Type F
Magnum 2005 556U 556C Sentry Key Texas Inst.   Type F
Neon 2000-05 555C 556U Sentry Key Texas Inst.   Type F
Ram Pick Up 2002-05 555C 556U Sentry Key Texas Inst.   Type F
Sprinter 2003-05 556U   Sentry Key Texas Inst.   Type F
Stratus 2000-05 555C 556U Sentry Key Texas Inst.   Type F
Stratus Coupe 2001-05 556U   Sentry Key Texas Inst.   Type F
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

FORD*                         *All 98 and newer cars with PATS will need two valid keys to learn the 555F or 555P
Contour 1998 555F 556U PATS Texas Inst. 1100F Type B
Contour 1999-00 555F 556U PATS Texas Inst. 1100F Type C
Crown Victoria 1998 555F 556U PATS Texas Inst. 1100F Type B
Crown Victoria 1999-02 555P, 555F 556U PATS Texas Inst. 1100F Type C
Crown Victoria 2003-06 556U   Securilock Texas Inst. 1100F Type C
Escape 2001-04 555S 556U Securilock Texas Inst. 1100F Type C
Escape 2005-06 556U   Securilock Texas Inst. 1100F  
Excursion 2000-05 555P, 555F 556U PATS Texas Inst. 1100F Type C
Expedition 1997-98 555F 556U PATS Texas Inst.   Type B
Expedition 1999-02 555P, 555F 556U Securilock Texas Inst. 1100F Type C
Expedition 2003-06 556U   Securilock Texas Inst. 1100F Type C
Explorer 1998 555F 556U PATS Texas Inst. 1100F Type C
Explorer 1999-00 555P, 555F 556U PATS Texas Inst. 1100F Type C
Explorer 2001-06 556U   Securilock Texas Inst. 1100F Type C
F-Series Pick Up 1999-03 555P, 555F 556U PATS Texas Inst. 1100F Type C
F-Series Pick Up 2004-06 556U   Securilock Texas Inst. 1100F Type C
Five Hundred 2005-06 556U   Securilock Texas Inst. 1100F  
Freestar 2004-06 556U   Securilock Texas Inst. 1100F Type C
Freestyle 2005-06 556U   Securilock Texas Inst. 1100F  
Focus 2000-06 555S 556U Securilock Texas Inst. 1100F Type C
Fusion 2006 556U   Securilock Texas Inst. 1100F  
GT 2005-06 556U   Securilock Texas Inst. 1100F  
Heavy Trucks (CF) 2000-01 555F 556U PATS Texas Inst.   Type C
Mustang 1996-98 555F 556U PATS Texas Inst.   Type B
Mustang 1998 555F 556U PATS Texas Inst. 1100F Type B
Mustang 1999-01 555P, 555F 556U PATS Texas Inst. 1100F Type C
Mustang 2005-06 556U   Securilock Texas Inst. 1100F  
Ranger 1999-00 555P, 555F 556U PATS Texas Inst. 1100F Type C
Ranger 2001-06 556U   Securilock Texas Inst. 1100F Type C
Sport-Trac 2001-05 556U   Securilock Texas Inst. 1100F Type C
Taurus 1996-98 555F 556U PATS Texas Inst.   Type B
Taurus 1998 555F 556U PATS Texas Inst. 1100F Type B
Taurus 1999 555P, 555F 556U PATS Texas Inst. 1100F Type C
Taurus 2000-05 556U   Securilock Texas Inst. 1100F Type C
Taurus 2006 556U   Securilock Texas Inst.   Type C
Thunderbird 1997 555F 556U PATS Texas Inst.   Type B
Thunderbird 1998 555F 556U PATS Texas Inst. 1100F Type B
Thunderbird 2002-05 556U   Securilock Texas Inst. 1100F Type C
Windstar 1998 555F 556U PATS Texas Inst.   Type C
Windstar 1999-00 555P, 555F 556U PATS Texas Inst. 1100F Type C
Windstar 2001-03 556U   Securilock Texas Inst. 1100F Type C
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

GMC
Canyon 2004-05 556L Doc 1603 Passlock Megamos    
6.5L, 6.6L Diesel 1998-02 555L   Passlock 2 Megamos    
6.5L, 6.6L D. VAN 1998-02 555L   Passlock 2 Megamos    
6.6L Diesel 2003-04 555L   Passlock 2 Megamos 456G  
Denali 1999-01 555L   Passlock 2 Megamos    
Envoy 1998-01 555L   Passlock 2 Megamos    
Envoy 2002-06 555L 457G Passlock 2 Megamos 455G  
Full Size Pick Up 1998-02 555L   Passlock 2 Megamos    
Full Size Pick Up 2003-05 555L 457G Passlock 2 Megamos 456G  
Jimmy 1998-03 555L   Passlock 2 Megamos    
Safari 1999-05 555L   Passlock 2 Megamos    
Sierra 1998-02 555L   Passlock 2 Megamos    
Sierra 2003-05 555L 457G Passlock 2 Megamos 456G  
Sonoma 1998-04 555L 457G Passlock 2 Megamos 456G  
Savanna  1998-05 555L 457G Passlock 2 Megamos 456G  
Suburban 1998-99 555L   Passlock Megamos    
Yukon 1998-02 555L   Passlock 2 Megamos    
Yukon 2003-05 555L 457G Passlock 2 Megamos 456G  
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

HONDA
Accord 1998-02 555H, 556H 556U   Megamos    
Accord 2003-05 556U, 556H     Megamos    
Accord Hybrid 2006 556U     Megamos    
Civic 2001-05 555I, 556H 556U   Megamos    
Civic 2006 556U     Megamos    
CR-V 2002-06 555I, 556H 556U   Megamos    
Insight 2000-05 556U     Megamos    
Element 2003-05 555I, 556H 556U   Megamos    
Odyssey 1998-04 555H, 556H 556U   Megamos    
Odyssey 2005-06 556U     Megamos    
Pilot 2003-04 555H, 556H 556U   Megamos    
Pilot 2005 556U     Megamos    
Prelude 1999-01 555D 556U   Megamos    
Ridgeline 2006 556U     Megamos    
S2000 2000-05 556U     Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

HUMMER
H2 2003-05 555L 457G Passlock 2 Megamos 456G  
H3 2006 556L Doc 1603 Passlock 2 Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

HYUNDAI
Accent 2003-05 556U   Immobilizer      
Elantra 2001-05 556U   Immobilizer      
Tiburon 6Cylinder 2003-05 556U   Immobilizer      
Santa Fe 2003-05 556U Note 5 Immobilizer      
Sonata 2004-06 556U   Immobilizer      
XG300 2001 556U   Immobilizer      
XG350 2002-04 556U   Immobilizer      
Tucson 2005 556U Note 5 Immobilizer      
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

INFINITI
FX35 2003-05 556U   Immobilizer Texas Inst.    
FX45 2003-05 556U   Immobilizer Texas Inst.    
G20 1999-02 556U   Immobilizer Texas Inst.    
G35 2003-05 556U   Immobilizer Texas Inst.    
I30 1999-01 556U   Immobilizer Texas Inst.    
I35 2002-04 556U   Immobilizer Texas Inst.    
M35/M45 2006 Custom   Transponder      
M45 2003-04 556U   Immobilizer Texas Inst.    
Q45 1998-05 556U   Immobilizer Texas Inst.    
QX4 1999-03 556U   Immobilizer Texas Inst.    
QX56 2004-05 556U   Immobilizer Texas Inst.    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

ISUZU
Ascender 2003-07 555L   Passlock 2 Megamos 1700G  
Axiom 2003-04 556U   Immobilizer Megamos    
I-280 2006 556L Doc 1603 Passlock 2 Megamos    
I-350 2006 556L Doc 1603 Passlock 2 Megamos    
Hombre 1998-00 555L   Passlock 2 Megamos    
Rodeo 2003-04 556U   Immobilizer Megamos    
Rodeo Sport 2003 556U   Immobilizer Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

JAGUAR
S-TYPE 2000-04 556U   Immobilizer Megamos    
XJ-Series 2004 556U   Immobilizer Megamos    
XJ8 1998-03 556U   Immobilizer Megamos    
XJR 1998-03 556U   Immobilizer Megamos    
XK8 1998-03 556U   Immobilizer Megamos    
XKR 2000-03 556U   Immobilizer Megamos    
XK Series 2004 556U   Immobilizer Megamos    
X-TYPE 2002-04 556U   Immobilizer Megamos    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

JEEP**                         **Cars with the immobilizers system all have gray key heads on the key
Cherokee 1999-01 555C 556U Sentry Key Texas Inst.   Type F
Commander 2006 556C 556U Sentry Key Texas Inst.    
Grand Cherokee 1996-98         455T  
Grand Cherokee 1999-04 555C 556U Sentry Key Texas Inst. 455J Type F
Grand Cherokee 2005 556C 556U Sentry Key Texas Inst.    
Liberty 2002-04 555C 556U Sentry Key Texas Inst.   Type F
Liberty 2005 556C 556U Sentry Key Texas Inst.    
TJ 1999-03 555C 556U Sentry Key Texas Inst.   Type F
Wrangler 1998-05 555C 556U Sentry Key Texas Inst.   Type F
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

KIA
Amanti 2004-05 556U   Immobilizer      
Optima 2005 556U Note 5 Immobilizer      
Sportage 2005 556U   Immobilizer      
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

LAND ROVER
Discovery II 2003-04 556U   Immobilizer Texas Inst.    
Freelander 2003-05 556U   Immobilizer Texas Inst.    
LR3 2005 556U   Immobilizer Texas Inst.    
Range Rover 1999-02 556U   Immobilizer Texas Inst.    
Range Rover 2003-05 555B, 556U Doc 1060 EWS III Philips    
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

LEXUS
ES-300 1998-03 555X 556U Immobilizer Texas Inst.   Type E
ES-330 2004-06 556U   Immobilizer Texas Inst.   Type E
GS-300 1998-05 555X 556U Immobilizer Texas Inst.   Type E
GS-300 2006 Custom   Transponder      
GS-400 1998-00 555X 556U Immobilizer Texas Inst.   Type E
GS-430 2001-05 555X 556U Immobilizer Texas Inst.   Type E
GS-430 2006 Custom   Transponder      
GX-470 2003-06 556U   Immobilizer Texas Inst.   Type E
IS-250 2006 Custom   Transponder      
IS-300 2001-05 555X 556U Immobilizer Texas Inst.   Type E
IS-350 2006 Custom   Transponder      
LS-400 1997-02 556U   Immobilizer Texas Inst.   Type E
LS-430 2001-06 556U   Immobilizer Texas Inst.   Type E
LX-470 1998-02 555X 556U Immobilizer Texas Inst.   Type E
LX-470 2003-06 556U   Immobilizer Texas Inst.   Type E
RX-300 1998-03 555X 556U Immobilizer Texas Inst.   Type E
RX-330 2004-06 556U   Immobilizer Texas Inst.   Type E
RX-400H 2006 556U   Immobilizer Texas Inst.   Type E
SC-300 1998-00 556U   Immobilizer Texas Inst.   Type E
SC-400 1998-00 556U   Immobilizer Texas Inst.   Type E
SC-430 2002-06 556U   Immobilizer Texas Inst.   Type E
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

LINCON*                      *All 98 and newer cars with PATS will need two valid keys to learn the 555F or 555P
Aviator 2003-05 556U   Securilock Texas Inst. 1100F Type C
Blackwood 2002 556U   Securilock Texas Inst. 1100F Type C
Continental 1998 555F 556U PATS Texas Inst. 1100F Type C
Continental 1999-01 555P, 555F 556U PATS Texas Inst. 1100F Type C
Continental 2002 555F 556U PATS Texas Inst. 1100F Type C
LS 2000-06 555S 556U Securilock Texas Inst. 1100F Type C
Mark LT 2006 556U   Securilock Motorola 1100F Type B
Mark Series VIII 1997-98 556U   Securilock Motorola   Type B
Navigator 1998 555F 556U PATS Texas Inst. 1100F Type C
Navigator 1999-01 555P, 555F 556U PATS Texas Inst. 1100F Type C
Navigator 2002 555F 556U PATS Texas Inst. 1100F Type C
Navigator 2003-06 556U   Securilock Texas Inst. 1100F Type C
Town Car 1998 555F 556U PATS Texas Inst. 1100F Type C
Town Car 1999-02 555P, 555F 556U PATS Texas Inst. 1100F Type C
Town Car 2003-06 556U   Securilock Texas Inst. 1100F Type C
Zephyr 2006 556U   Securilock Texas Inst. 1100F Type C
Model Year DEI
Interface
Alternative
Interface
Immobilizer
Type
Factory Chip
Manufacturer
Databus
Interface

Program
Method

MAZDA
3 2004-05 556U   Immobilizer Texas Inst. 1100F  
6 2003 556U   Immobilizer Texas Inst.    
6 2004-05 556U   Immobilizer Texas Inst. 1100F  
626 1998-99