Directed Electronics 29402, 20402 User Manual
© 2005 Directed Electronics, Inc. 1 v2.1
VATS / PASSLOCK / TRANSPONDER
Universal Alarm Bypass Module
Model #s 20402 & 29402
This module lets you bypass virtually any type of factory passive
anti-theft system on the market today to remotely start your
vehicle without permanently disabling the vehicle’s anti-theft
system.
In 1983, General Motors came out with their first Vehicle AntiTheft System known as VATS which uses a resistor pellet in
the key. Since that time, other more sophisticated theft systems
have followed. Most of these theft systems are still resistance
based, and another uses a “Transponder” which is a tiny pellet
or chip embeded within the the head of the ignition key.
Contents:
1 Universal Alarm Bypass Module
1 8 position wire harness
1 Transponder loop w/connector
2 Cable Ties
1 Instruction booklet
2 Double-stick foam tape
8 position harness
connector
Transponder Loop
connector
2 Resistor
Measuring Pads
8 position
dip-switch
Variable Resistor
FRONT VIEW
BACK VIEW
Up is OFF
Down is ON
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v2.1 2 © 2005 Directed Electronics, Inc. © 2005 Directed Electronics, Inc. 3 v2.1
Determine which type system you have in your vehicle. If unsure -
- follow the chart on the previous page to determine the system
you have. There are several types of systems as outlined below:
General Motors VATS and PASSLOCK 1 and PASSLOCK 2 theft
systems. For these, you will be required to dial-in a resistor value
which matches the one on your security system. The method is described on the following pages for each type system using the dip
switches and the variable resistor. The variable resistor is a 10 turn
potentiometer which can be dialed up from zero ohms to 1,000 ohms.
SATURN vehicles up to the 2000 model year simply hook up to
the Universal Alarm Bypass Module as shown on page 9. If you
have a 2000 model year or later Saturn vehicle, see page 10.
TRANSPONDER / PASSKEY 3 / P.A.T.S. systems require a
transponder (or extra key) to be used with our system. Follow the
directions on page 10 and 11.
List of vehicles and the types of security systems:
Acura 3.2TL 98+ Transponder
Audi A4,A6,A8 98+ Transponder
Acura CL 97+ Transponder
Acura Integra Transponder
Acura NSX Transponder
Acura RL 98+ Transponder
BMW (all 97 +) Transponder
Buick LeSabre 90 - 01 VATS
Buick Park Ave 91 - 96 VATS
Buick Park Ave 97+ Transponder
Buick Regal 93 -96 VATS
Buick Rendez Vous Transponder
Buick Riviera 93 -96 VATS
Buick Roadmaster 93 - 96 VATS
Buick Skylark 96-98 Passlock
Cadillac Allante VATS
Cadillac Brougham VATS
Cadillac Catera 97+ Transponder
Cadillac DeVille 92 - 98 VATS
Cadillac DeVille 99+ Transponder
Cadillac Eldorado 89 - 98 VATS
Cadillac Eldorado 99+ Transponder
Cadillac Escalade 00+ Passlock
Cadillac Fleetwood 90 - 96 VATS
Cadillac Seville 90 - 98 VATS
Cadillac Seville 99+ Transpond
Chevrolet Astro Van 98+ Passlock II
Chevrolet Avalanche 01 Passlock
Chevrolet Blazer 98+ Passlock II
Chevrolet Camaro 86 + VATS
Chevrolet Cavalier 96-99 Passlock
Chevrolet Cavalier 2000+ PasslockII
Chevrolet Corvette 88 + VATS
Chevrolet Express 97+ Passlock
Chevrolet Impala 2000+ Passlock II
Chevrolet Lumina 96 -99 VATS
Chevrolet Malibu 97 -01 Passlock II
Chevrolet Monte Carlo 96-99 VATS
Chevrolet Monte Carlo 00+ Passlock II
Chevrolet Pickup Full-size 98+ Passlock II
Chevrolet S-10 98+ Passlock II
Chevrolet Silverado HD 01 PasslockII
Chevrolet SSR 01 Passlock
Chevrolet Suburban 98+ Passlock II
Chevrolet Tahoe 98+ Passlock II
Chevrolet Trailblazer 01+ PasslockII
Chevrolet Van 98+ Passlock II
Chevrolet Venture 99+ Transponder
Chrysler Concorde 98+ Transponder
Chrysler LHS 99+ Transponder
Chrysler PT Cruiser 00+ Transponder
Chrysler Sebring Convertible 98+ Transponder
Daewoo Leganza Transponder
Dodge 300 M 99+ Transponder
Dodge Intrepid 98+ Transponder
Dodge Neon 00+ Transponder
Ford Contour 97 + Transponder
Ford Crown Victoria 98+ (optional) Transponder
Ford Excursion 01+ Transponder
Ford Expedition 97+ Transponder
Ford Explorer 98+ Transponder
Ford Focus 01+ Transponder
Ford Mustang 98+ Transponder
Ford Pick Up (optional) Transponder
Ford Ranger 99+(optional) Transponder
Ford Sport Trac 01 Transponder
Ford Taurus 96 + Transponder
Ford Windstar 2000 + Transponder
GMC Envoy 01+ Passlock II
GMC Jimmy 98+ Passlock II
GMC Safari 98+ Passlock II
GMC Denali 99+ Passlock II
GMC Sierra Passlock II
GMC Sonoma 98 + Passlock II
GMC Suburban 98+ Passlock II
GMC Yukon 98+ Passlock II
Honda Accord 98+ Transponder
Honda Odyssey 98+ Transponder
Honda Prelude 98+ Transponder
Honda S2000 Transponder
Infiniti I30 98+ Transponder
Infiniti Q45 98+ Transponder
Infiniti QX4 Transponder
Jaguar (all 98+) Transponder
Isuzu Hombre 98+ Passlock II
Jeep Grand Cherokee 99+ Transponder
Jeep Liberty Transponder
Jeep TJ (Wrangler) 99+ Transponder
Lexus (all 97+) Transponder
Lincoln Blackwood Transponder
Lincoln Continental 97+ Transponder
Lincoln LS 2000+ Transponder
Lincoln Mark VIII 97+ Transponder
Lincoln Navigator 97+ Transponder
Lincoln Town Car 97+ Transponder
Mazda Tribute Transponder
Mercedes (all 97+) Transponder
Mercury Cougar 99+ Transponder
Mercury Grand Marquis Transponder
Mercury Mountaineer 98 + Transponder
Mercury Mystique 97+ Transponder
Mercury Sable 96+ Transponder
Mini Cooper 02 Transponder
Mitsubishi Eclipse Transponder
Mitsubishi Galant Transponder
Nissan Frontier S/C Transponder
Nissan Maxima 98+ Transponder
Oldsmobile Achieva 95 Passlock I
Oldsmobile Achieva 96+ Passlock II
Oldsmobile Alero 99+ Passlock II
Oldsmobile Aurora VATS
Oldsmobile Bravada 98 Passlock II
Oldsmobile Cutlass 97+ Passlock II
Oldsmobile Eighty-Eight VATS
Oldsmobile Intrique 98+ Passlock II
Oldsmobile Ninty-Eight VATS
Oldsmobile Silhoutte 99 Transponder
Pontiac Aztek 01 Transponder
Pontiac Bonneville 89+ VATS
Pontiac Firebird 88+ VATS
Pontiac Grand Am 96 - 98 Passlock
Pontiac Grand Am 99+ Passlock II
Pontiac Grand Prix 92 – 96 VATS
Pontiac Grand Prix 97+ Transponder
Pontiac Montana 99+ Transponder
Pontiac Sunfire 96-99 Passlock I
Pontiac Sunfire 2000+ Passlock II
Porsche (all 97+) Transponder
Saab (all 97+) Transponder
Saturn 97-99 Factory Alarm
Saturn 00+ Transponder
Subaru Legacy 00+ Transponder
Subaru Outback 00+ Transponder
Toyota Avalon 98+ Transponder
Toyota Camry 98+ Transponder
Toyota Highlander 01+ Transponder
Toyota Land Cruiser 98+ Transponder
Toyota Solara 99 + Transponder
Toyota Supra 98+ Transponder
Volkswagen Beetle 98+ Transponder
Volkswagen Golf 98+ Transponder
Volkswagen Passat 98+ Transponder
Volvo (all 98+) Transponder
v2.1 4 © 2005 Directed Electronics, Inc. © 2005 Directed Electronics, Inc. 5 v2.1
VATS:
Before performing this set up, make sure the vehicle will start with the
transmitter if you leave the ignition key in the key cylinder.
1. Put dip switch 1, 7 and 8 into the OFF (up) position
2. Measure the resistance of the key. It should be between 392 ohms and
11,800 ohms. To do this, put the ohm meter probes on each side of the
key pellet. This value should be close to one of the following (all values
in ohms): 392, 523, 681, 887, 1.13K, 1.47K, 1.87K, 3.01K, 3.74K, 4.75K,
6.04K, 7.5K, 9.53K, 11.8K.
3. Locate the closest value which is less than your desired value on the
chart on page 4. Set dip-switches 2 through 6 as shown on page 4.
4. Put your ohm meter (multi-meter) probes on the two silver resistance
measuring pads through the opening shown in the drawing -- making
good contact with these two silver pads on the board. (See drawing on
page 1). Or put your two probes into the two holes on the bottom of the
case making contact with the underside of the silver pads. Either contact point method will work.
5. With the probes held firmly, finish reaching the final resistance value
needed for your system by turning the screw on the variable resistor on
the side of the unit next to the dip switches. Turn the screw until the
resistance value matches the resistance value of the key.
6. Locate the pair of VATS wires (sometimes White/Black striped and
Purple/Black striped). These wires are often in a plastic tube. Be careful not to cut into the Yellow Air Bag wires! The Air Bag wires are often in
a yellow plastic tube that is clearly marked. The VATS wires run from
the ignition switch down the column under the dash. Connect the Universal Alarm Bypass Module using the diagram below.
Dip Switch #1 Off
Dip Switch #7 Off
Dip Switch #8 Off
*See page 12 if you do not have an IGN3 wire on your remote
starter
Dip Switch # 2 3 4 5 6
Resistor Value 0.825 1.65 3.32 6.65 13.3 Final Resistance (k ohms)
ON ON ON ON ON 0.000 +Variable Resistor Value
OFF ON ON ON ON 0.825 +Variable Resistor Value
ON OFF ON ON ON 1.650 +Variable Resistor Value
OFF OFF ON ON ON 2.475 +Variable Resistor Value
ON ON OFF ON ON 3.320 +Variable Resistor Value
OFF ON OFF ON ON 4.145 +Variable Resistor Value
ON OFF OFF ON ON 4.970 +Variable Resistor Value
OFF OFF OFF ON ON 5.795 +Variable Resistor Value
ON ON ON OFF ON 6.650 +Variable Resistor Value
OFF ON ON OFF ON 7.475 +Variable Resistor Value
ON OFF ON OFF ON 8.300 +Variable Resistor Value
OFF OFF ON OFF ON 9.125 +Variable Resistor Value
ON ON OFF OFF ON 9.970 +Variable Resistor Value
OFF ON OFF OFF ON 10.795 +Variable Resistor Value
ON OFF OFF OFF ON 11.620 +Variable Resistor Value
OFF OFF OFF OFF ON 12.445 +Variable Resistor Value
ON ON ON ON OFF 13.300 +Variable Resistor Value
OFF ON ON ON OFF 14.125 +Variable Resistor Value
ON OFF ON ON OFF 14.950 +Variable Resistor Value
OFF OFF ON ON OFF 15.775 +Variable Resistor Value
ON ON OFF ON OFF 16.620 +Variable Resistor Value
OFF ON OFF ON OFF 17.445 +Variable Resistor Value
ON OFF OFF ON OFF 18.270 +Variable Resistor Value
OFF OFF OFF ON OFF 19.095 +Variable Resistor Value
ON ON ON OFF OFF 19.950 +Variable Resistor Value
OFF ON ON OFF OFF 20.775 +Variable Resistor Value
ON OFF ON OFF OFF 21.600 +Variable Resistor Value
OFF OFF ON OFF OFF 22.425 +Variable Resistor Value
ON ON OFF OFF OFF 23.270 +Variable Resistor Value
OFF ON OFF OFF OFF 24.095 +Variable Resistor Value
ON OFF OFF OFF OFF 24.920 +Variable Resistor Value
OFF OFF OFF OFF OFF 25.745 +Variable Resistor Value
DipSwitch #1 Dip Switch #7 Dip Switch #8
VATS OFF OFF OFF
PASSLOCK 1 ON ON OFF
PASSLOCK 2 OFF OFF OFF
Use this chart with VATS, PASSLOCK 1 and PASSLOCK 2.
All resistor values shown are in ‘K-ohms’ -- or 1,000 ohms. Thus
the 1.650 value shown in the third row is 1,650 ohms or 1.65 K ohms.
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