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All power door locking systems utilize switches or a central computer called the
Body Control Module (BCM) to control the locking and unlocking of the vehicle.
The switch is usually located on the door or center console while the BCM is
usually located under the Dash. Most locking systems will have at least 2
control wires, one for locking your doors called the LOCK wire, and one for
unlocking your doors called the UNLOCK wire.
You can refer to your vehicle’s electrical service manual for details on location
and color coding of Locking/Unlocking wires or you can find them by tracing the
wires from the door switches. Remember to only use a Digital Multi Meter when
testing for vehicle wires.
When testing a wire to "lock", your LOCK wire establishes a
connection to either a negative or a positive source, this will be the
signal to your vehicle to trigger a locking signal to the door lock
actuator or BCM to lock. Vice versa if you are testing for “unlock”.
Negative and Positive triggers are the two main types of door locking systems.
On a negative trigger system your LOCK and UNLOCK wire uses (-) negative
sources to signal the vehicle when you activate unlock or lock. In a positive
trigger system, your LOCK and UNLOCK wire uses (+) positive sources to
signal the vehicle when you activate unlock or lock.
Certain Manufactures such as Dodge/Chrysler utilize a single wire system
called a multiplexer. This single control wire uses one wire in combination with
resistor values to communicate to the BCM to LOCK and UNLOCK the vehicle.
Please refer to
Appendix B Figure 2.
Summary of Contents for 2GO KEYLESS iKEY RS
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