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aftermarket keyless entry wiring question.

10433 Views 2 Replies 1 Participant Last post by  rogelio
2011 mazda3 4 door with power door locks. I want to add an aftermarket keyless entry, something like a Galaxy g20.
I understand it takes neg signal to lock and 1000 ohm to unlock. But what wire/connector is this?
Is it pin F of J-04 at PJB? ( output from keyless control module)
Or do I parallel the door switch with a relay?
I can see several ways to make it work but what is easiest and best?
Other posts on this refer to a light green wire.
Is this pin F? It would be nice to have the light flash and horn honk if possible. That is why I want to use RKE module input if I can.
Thanks for any help.
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I tried the keyless entry system on-board diagnostic test but no success.

Step 1: Open drivers door and leave open.
Step 2: Lock and unlock the drivers door using the power door lock switch on the door.
Step 3: Insert key into the ignition.
Step 4: Turn key to on position and return to off position. (IMPORTANT - use ON position NOT ACC position). Do this 3 times within 10 seconds. Leave key in the ignition.
Step 5: Open and close the drivers door 3 times. (Door should be left open after this step).
Step 6: ECU should respond by locking and unlocking the doors.
and this one:
1 remove key from ignition
2 close all doors
3 open drivers door
within 24 seconds...
4 insert key into ignition
5 turn to "on" position and back to "lock" position 4 times
6 open drivers door 3 times ( then leave open)
7 confirm all doors
8 drivers door unlocks
9 passenger doors unlocks
10 hazards flash

I was hoping the computer would respond letting me know the software is there to accept an input. I will test the wiring when my kit arrives.
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this is what I ended up doing. Hopefully it may help someone in the future.
I removed passenger side trim and kick panel, and glove box. I mounted the receiver module inside passenger kick panel.
POWER I ran a new power wire to fuse block on drivers side of dash. I removed screw holding fuse panel, pulled it out and tapped into the same fuse the door locks are on.
IGNITION I tapped into the pink wire going to passenger door window switches.
GROUND put wire under a screw in cowl bar under dash.
LOCK tapped into light green wire coming from door lock switch. (same wire as unlock)
UNLOCK tapped into same light green wire as lock but ran thru a 1000 ohm resister.
this method works since my module takes the lock/unlock wire to ground. no relay was needed.
I did not hook up the parking light flash or horn honk. The wiring under the drivers side dash was MUCH too tight to even try to see the wiring harnesses. I "think" the BCM was above the drivers kick panel. But like I said. not enough room to see much less get my hands in there.

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