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UNGO – Door Lock Application Guide
Multiplexed Door Lock Systems
Multiplexed door lock systems have more than one function on the same wire and require the use of
different resistor values. It is necessary to use external relays any time a resistor is used.
Positive Trigger Multiplexed Door Lock System
Test Procedure for Multiplexed Door Lock Systems:
1.
Locate the Lock/Unlock wire in the vehicle.
2.
Cut the wire in half and determine the polarity of the wire.
3.
Using a digital multimeter, measure the resistance for Lock and Unlock. (See Diagram)
Test Configuration for Positive Door Lock Systems
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