Directed Electronics AutoCommand 25522 Installation Manual page 17

3) General Motors Passlock™ Security System Bypass
New GM PASSLOCK
Beginning in 1995 and 1996 GM introduced a new version of their old VATS
security system. This new PASSLOCK
Chevrolet Z24 Cavalier, Pontiac Sunfire GT only, 1996+ Pontiac Grand Am,
Oldsmobile Achieva, and the Buick Skylark, Chevrolet Cavalier and Pontiac
Sunfire. You can determine if the vehicle is equipped with this system by check-
ing for a "Security" or "Theft" light on the dash panel. Basically, what they
have done is taken the resistor that was part of the key on the original VATS and
moved it to inside the lock cylinder of the steering column. They have also set
additional parameters to make this even more complicated. To bypass this
system, use the following diagram and instructions. Follow these instructions
very carefully and remember that the resistance must be within 5% of the cor-
rect measured value.
Note that for these vehicles with PASSLOCK, the AutoCommand's Green Igni-
tion 2 wire goes to the vehicle's White Ignition wire. The AutoCommand's
White Accessory wire goes to the Vehicle's Orange Ignition wire.
1. Remove the top and bottom halves of the steering column shroud.
2. Locate the small three wire harness (with White, Black and Yellow wires) running down from
the ignition key cylinder on the top right hand side of the steering column into the instrument
panel.
3. Cut the Yellow wire in half and bare back the Black wire.
4. With the ignition key in and turned to the "ON" or "RUN" position, measure the resistance
between the key side of the Yellow wire and the Black wire. Make several measurements to
verify that you have a consistent resistance. You also need to change your test leads around.
You will find that you get two different readings. So far we have found that the higher of the
two readings is the correct resistance.
5. When you have correctly identified the correct resistance obtain a resistance of the same value.
6. Locate the Black "Bulb Test" wire on the left side of the steering column in cavity "D" or "E"
of the Black 5-way connector, just above the main ignition switch connector.
7. Wire the relay as shown in the following Diagram.
© 2005 Directed Electronics, Inc.
Anti-Theft System for 1995 through 1997 models
®
system will only be found in the 1995
®
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