Viper 320HV Installationsanleitung PDF herunterladen (Seite 16)

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This system is most commonly found in Ford, Mazda, Chrysler and GM vehicles. The door lock switch or door key

cylinder may contain either one or two resistors.

SSIINNGGLLEE--RREESSIISSTTOORR TTYYPPEE::

If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12V in

one direction and less than (+)12V when operated in the opposite direction.

TTWWOO--RREESSIISSTTOORR TTYYPPEE::

If two resistors are used in the factory door lock switch/key cylinder, the switch/key cylin-

der will read less than (+)12V in both directions.

DDEETTEERRMMIINNIINNGG TTHHEE PPRROOPPEERR RREESSIISSTTOORR VVAALLUUEESS::

To determine the resistor values, the door lock switch/key cylinder

must be isolated from the factory door lock system. For testing, use a calibrated digital multimeter that is set to ohms.

IIMMPPOORRTTAANNTT::

To ensure an accurate resistance reading, do not touch the resistor or leads during

testing.

1. Cut the output wire from the door lock switch/key cylinder in half.

2. Test with the meter from the switch side of the cut door lock switch/key cylinder wire to a reliable constant

(+)12V source. Some good constant (+)12V references are the power input source to the door lock switch/key

cylinder, the ignition switch power wire, or the (+) terminal of the battery.

3. Operate the door lock switch/key cylinder in both directions to determine the resistor values. If the multi-

meter displays zero resistance in one direction, no resistor is needed for that direction.

4. Once the resistor value(s) is determined, refer to the wiring diagram for proper wiring.

ttyyppee GG:: ppoossiittiivvee ((++)) mmuullttiipplleexx

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Viper 320HV Installationsanleitung Seite 16