3rd Party Keyless Entry DIY (Why Not?)

[Craig030774]

Originally Posted by Swhitcomb

Did some googling. It's not the same. Very similar though. I found this:


VWVortex.com - MKIV door locks explained - why you're having problems!!!

The mechanism I replaced is still sitting on my workbench, so I took it apart. Tested all the microswitches in it, and they all worked fine. The circuit board is covered in some sort of orange glue. My guess would, it was a fix VW rolled out to address exactly what he found. Broken solder connections. For fun I'm going to resolder the whole board and test it. What could it hurt? May do the same on the passenger side.

any luck sesn

[Swhitcomb]

I haven't had time to dig into the PCB on the mechanism. Been working like 70 hours a week. However, with all the extra work, I finally had the money to order a PC based laptop and durametric. Just ordered it about an hour ago. With it, I think I can dig a little deeper.

[Swhitcomb]

Well, my durametric cable came today. I hooked it up and read the codes. There were 10 or 12 of them. Like a dumbass, I cleared them before I screen shot it. None have returned yet. What's weird though is none of the activations would work on the alarm module. I only played for about 10 mins. This weekend I'll dig farther.

[Swhitcomb]

Well, some of the codes came back. I downloaded the diagnostic manual and can't find the flow chart for error code 60 or 49.

[Craig030774]

Hi had a chance to play today did all switch testing all ok all connections good. I have the same mechanism as you Sean cm2. Still no luck once the Immobiliser kicks in loose all power until I open with key and turn ignition on

[Craig030774]

Found this website scroll down to section 90 for Immobiliser fault finding v12.dyndns.org

[dblhelixsf]

Has anyone been able to figure this out? My factory remote recently gave up the ghost as well and I turned to Ebay for an aftermarket solution. I have an 02 Base and after wiring up the unit, I can also get the doors to lock and unlock. Unfortunately, similar to the previous posts, once the dash LED kicks on (30 seconds after the door locks), I cannot unlock the doors using the remote. I have an M535 immobilizer.

Thanks in advance.

[Swhitcomb]

That actually makes me feel better. Maybe it’s something in the M535 that causes it not to function the way it would with an m531.

[particlewave]

Originally Posted by dblhelixsf

Has anyone been able to figure this out? My factory remote recently gave up the ghost as well and I turned to Ebay for an aftermarket solution. I have an 02 Base and after wiring up the unit, I can also get the doors to lock and unlock. Unfortunately, similar to the previous posts, once the dash LED kicks on (30 seconds after the door locks), I cannot unlock the doors using the remote. I have an M535 immobilizer.

Thanks in advance.

Originally Posted by Swhitcomb

That actually makes me feel better. Maybe it’s something in the M535 that causes it not to function the way it would with an m531.

Mine is the M535, so that's not it.

[dblhelixsf]

Originally Posted by particlewave

Mine is the M535, so that's not it.

Whelp, there goes my theory...the mystery continues.

[dblhelixsf]

Originally Posted by dblhelixsf

Whelp, there goes my theory...the mystery continues.

I have a thought. Before the system arms, the doors can be unlocked by the aftermarket remote, but the gas cap door remains locked. Do you guys know which wire triggers the gas cap door?