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Yes, you can check if locks work but strongly suggest to isolate testing lock from the rest of wiring in sense that you disconnect the plug from wiring and test the lock on the plug by applying 12 volts DC. Of course you need to know what wire you can test in order not to damage something else.
 

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Pink wire is used for locking, Orange wire is used for unlocking. Both of these two wires are connected to respective side of C/L motor.

You need to be aware that you can just make a puls to these wires in order to activate the C/L motors to each side. Constant feed WILL fry the motors.
 

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looking at it there are two connectors, one with 2 cables. one with 3.. could the 2 cable be for the alarm?
Wire colours are important. What are wire colours?
 

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Drivers door lock has 2 connectors, passenger has only one connector. Drivers door lock has 8 wires and passenger only 5. Separate connector does not have separate function. Wires are just that way put into 2 connectors. Drivers door lock has additional functions, like superlocking or EKA code entering. That is the reason for additonal wires.

Now, I cannot help you with wire colours on the lock itself, as depending on the manufacturer they will place wire colours from their choice.
What I can help is wire colours from the car loom. Below you will see picture of the connector from car's loom side, not the one you have on your above picture. So be careful when counting positions on the connector as it will be mirror picture.

Rectangle Font House Facade Parallel


In case of RHD car pin number 1 is Orange wire and pin number 4 is Pink wire.

In case of LHD car pin number 3 is Orange wire and pin number 6 is Pink wire.

Since I do not know which version of the car you have, I provided both options.

As I said above Pink wire is for locking, Orange wire is for unlocking. Also DO NOT FORGET that you can apply only pulse signal to the wire since continuous feed will FRY the central locking motors.
 

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You must pull both connectors, otherwise you might damage it. Ground, in case of motors is other wire. You have this pair, Pink and Orange. If you put pulse on Pink other wire is ground. If you put pulse on Orange other wire is ground.
 
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