2012 vw beetle doorlocks

Need some help on a 2012 VW Beetle(switch blade key) getting the doors to unlock. I found the lock/unlock wire, lock detection wire, and the arm/disarm wire in the drivers kick. With the meter, the lock/unlock wire and the arm/disarm wire both go to ground when testing with the key and the switch. I can get it to lock and arm just fine, but it will not unlock. It sounds like it double pulse unlocking, yet with either the unlock or disarm wire from the brain disconnected, nothing would happen. I've tried diode isolating everything, and even relay isolating the lock detection wire, putting a 180 ohm resistor on the ulock and the disarm wires, and still nothing. Any and all suggestions and tips are appreciated. I did try using a Ads al-ca bypass using vw1 firmware, but was told by Idata, that if there were no can wires coming from the door, then the bypass would not work for the lock/unlock. By the way, It is an AutoStart remote start AS-2300ITW being installed.

You need to relay the lock wires,the low current NEG outputs from the Autostart won't get past the resistor. Use a DEI 451 module, should plug straight in or a pair of relays:- vw_multiplex.bmp

I tried that too. Forgot to mention it.  Would I need to catch the wire someplace else. 

 The wires that I found were: lock/unlock - BROWN / green,  lock detection - lt.blue/ purple, and  arm/disarm - lt.blue/red.

Although it should be the same, you could try at the VESCM.  What happens when you use a jumper

wire from chassis ground, thru the 180 ohm resistor, directly to the BROWN / Green lock wire?

Info from DEI :

Power Lock        BROWN / green   straight (-)      VESCM, black 73 pin plug, pin 25  

Power Unlock    same wire as power lock   (-) thru 180 ohms     VESCM, black 73 pin plug, pin 25

Factory Alarm Arm         blue/red (driver door key lock) (-)        VESCM, black 73 pin plug, pin 24  

Factory Alarm Disarm   same as factory alarm arm (-) 180 ohms    VESCM, black 73 pin plug, pin 24    

 

The VESCM (Vehicle Electrical System Control Module) is the relay box under the driver dash.

The DEI 451M module Howard suggested should work ( if the above test works ).

Soldering is fun!

[QUOTE=kreg357]

Although it should be the same, you could try at the VESCM.  What happens when you use a jumper

wire from chassis ground, thru the 180 ohm resistor, directly to the BROWN / Green lock wire?

I did that and it worked just fine, but nothing when hooked to the 451m.  Would I need to use a 451m on the arm/disarm wire as well, and do I need to bother with the lock detection wire?

If the BROWN / Green lock wire works correctly for Lock and Unlock going directly to chassis ground

for Lock and directly to chassis ground thru the 180 ohm resistor for Unlock, it should also work properly when the DEI 451M is used & connected at the same point of the GREEN/ Brown wire.  Can youlist your DEI 451M wiring?

Haven't done a 2012 Beetle, so I'm not sure if the Lock Detect wire is necessary.  Perhaps the safest

way would be using a second DEI 451M connected to the BLACK/ Red Alarm wire, controlled by the AS2300'sArm and Disarm outputs, for the alarm control.  That would keep everything separate and isolated.  Test it manually with the jumper to chassis ground / jumper thru 180 ohm resistor to chassis groundto verify.

Soldering is fun!

451m wiring colors: grn/blk - lock, blu/blk- unlock with 180 ohm resisitor.  brn/blk and wht/blk not used.  pur and pur/blk to ground.  Will call Directechs to verify if I need lock detect wire or not, unless Howie can shed some more light on this.  Thanks again, to both of you, for all your help and suggestions on this.