Windows locks not working

[Porsche54321]

Originally Posted by rexcramer

I am not sure what you mean by 'window locks'? Do you mean buttons?

The windows work when you open the door , they go down an inch. But when you press the window button they do not react at all. I tested the switch and it looks good.

The door locks dont work with the button.

The key fob does not work.

[piper6909]

Originally Posted by Porsche54321

The windows work when you open the door , they go down an inch. But when you press the window button they do not react at all. I tested the switch and it looks good.

The door locks dont work with the button.

The key fob does not work.

I had the same symptom when I bought mine. The problem was the immobilizer that had gotten wet when the previous owner had it.

Take out your immobilizer, open it up and check for any corrosion on the board.

[Porsche54321]

Originally Posted by piper6909

I had the same symptom when I bought mine. The problem was the immobilizer that had gotten wet when the previous owner had it.

Take out your immobilizer, open it up and check for any corrosion on the board.

It looks fine could it be the ignition switch ?

[piper6909]

Originally Posted by Porsche54321

It looks fine could it be the ignition switch ?

I guess it's possible, but in my case with the exact same symptoms it was the immobilizer.

You believe water infiltration caused it, how much water did you get in? Any puddling at all on the floor?

It's possible you got water on the immobilizer, but it hadn't corroded yet. If it got wet at all, it may still be wet under the relays where you can't see it.

If you suspect it got wet or damp at all, douse it with rubbing alcohol to displace the water and then let it dry out thoroughly.

[rexcramer]

You might consider talking with this company. They can rehab your unit. ecudoctors.com/pages/porsche

A faulty ignition switch can also cause several issues. https://www.pelicanparts.com/techarticles/Boxster_Tech/86-ELEC-Ignition_Switch/86-ELEC-Ignition_Switch.htm

Stay with it, don't give up and report back what you find.

[Porsche54321]

Originally Posted by rexcramer

You might consider talking with this company. They can rehab your unit. ecudoctors.com/pages/porsche

A faulty ignition switch can also cause several issues. https://www.pelicanparts.com/techarticles/Boxster_Tech/86-ELEC-Ignition_Switch/86-ELEC-Ignition_Switch.htm

Stay with it, don't give up and report back what you find.

If I end up using them, I will let you know how it went. From their site it sounds like it is not the ignition as there are no problems starting. The problems seem isolated to windows locks and radio

[Porsche54321]

Originally Posted by piper6909

I guess it's possible, but in my case with the exact same symptoms it was the immobilizer.

You believe water infiltration caused it, how much water did you get in? Any puddling at all on the floor?

It's possible you got water on the immobilizer, but it hadn't corroded yet. If it got wet at all, it may still be wet under the relays where you can't see it.

If you suspect it got wet or damp at all, douse it with rubbing alcohol to displace the water and then let it dry out thoroughly.

Thank you, I already took out the immobilizer, put it in alcohol, dried it out and cleaned the contacts as best I can.

I am Debating taking a heat gun to the microchip. I think this may melt the welds a bit to get a better contact.

I'm a bit worried it may make it worse, maybe the solder will just seperate from the various pins.

[piper6909]

Originally Posted by Porsche54321

Thank you, I already took out the immobilizer, put it in alcohol, dried it out and cleaned the contacts as best I can.

I am Debating taking a heat gun to the microchip. I think this may melt the welds a bit to get a better contact.

I'm a bit worried it may make it worse, maybe the solder will just seperate from the various pins.

It seems like you're pretty comfortable doing that, but I'd be very careful about using a heat gun on it.

I swapped the EEPROM from my damaged one into a replacement unit, but it's not for the feint of heart. There are so many tiny components nearby, and they can easily drift out of alignment from their pads.

I practiced many times on junk boards before I dove in.

To prevent the solder from separating, you can dab some flux on the pins. That should help keep the solder on the pins and pads.


Good luck.

[Porsche54321]

Originally Posted by piper6909

It seems like you're pretty comfortable doing that, but I'd be very careful about using a heat gun on it.

I swapped the EEPROM from my damaged one into a replacement unit, but it's not for the feint of heart. There are so many tiny components nearby, and they can easily drift out of alignment from their pads.

I practiced many times on junk boards before I dove in.

To prevent the solder from separating, you can dab some flux on the pins. That should help keep the solder on the pins and pads.


Good luck.

Hmm, how did you know the eeprom was the issue?
Maybe I can just try to apply the heat only to the eeprom with a soldering gun.

[rexcramer]

My guess is you still have issues related to the immobilizer getting wet. The fact that both of your windows drop on opening is a good thing. The chances of both of your windows not working at the same time are remote at best. Then add in your key fob not working at the same time.

If you have a multi-meter and experience, you need to start tracing circuits. There is a plug from the door to the A-pillar. My driver side plug got water in it and caused several issues/problems. Mostly window issues. The locks, window, lights and sound run through that plug. Check and see if it is dry.

[Porsche54321]

Originally Posted by rexcramer

My guess is you still have issues related to the immobilizer getting wet. The fact that both of your windows drop on opening is a good thing. The chances of both of your windows not working at the same time are remote at best. Then add in your key fob not working at the same time.

If you have a multi-meter and experience, you need to start tracing circuits. There is a plug from the door to the A-pillar. My driver side plug got water in it and caused several issues/problems. Mostly window issues. The locks, window, lights and sound run through that plug. Check and see if it is dry.

We did some testing from the switch back to the immobilizer, it's a bit confusing cause some wires leading to the window motor have a current even though the immobilizer is not plugged in. I guess the immobilizer just sends a signal and not the actual current to activate the window.

We cleaned up the immobilizer with alcohol, we scraped connectors as much as we could. Nothing changed the inside of the door seems dry, but I will keep an eye out for that plug. Z

I am assuming the immobilizer is broken.

1.Can I buy pass this enough so that the windows at least work ?

2 Can I buy some sort of bypass unit

3 can I test the actual parts of the microchip somehow or have some one test it.

4. Is it possible to fix the microchip.

5. Does anyone know where one can purchase a cheap aftermarket or used one

6. Does any one want to buy a 2001 Boxster from Montreal

Thanks guys for all your advice.