Directed Electronics Ready Remote manual Type G positive + multiplex

type G: positive (+) multiplex

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.

SINGLE-RESISTOR TYPE: If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12V in one direc- tion and less than (+)12V when operated in the opposite direction.

TWO-RESISTOR TYPE: If two resistors are used in the factory door lock switch/key cylinder, the switch/key cylinder will read less than (+)12V in both directions.

DETERMINING THE PROPER RESISTOR VALUES: 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.

note: To ensure an accurate resistance reading, do not touch the resistor or leads during testing.

note: Please refer to the Door Locking Systems document on www.designtech-intl.com (On-Line Tech Support, Tech Tips) for complete resistor test procedure and addi- tional information for multiplexed door locks.

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

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