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clickman

Fixing non-functional key fob switches

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Fixing non-functional key fob switches


The credit for this goes to Kendo on 986forum, but I thought it might be worth posting in the DIY section here. I tried it and it worked for me. Kendo: For those that have just had the tactile switch fail and want to replace it it can be found at Mouser Electronics for $0.60 each. Tactile switch The item you want is figure "C" 101-TF25R-EV (at least this is true for the three button key FOB head on my 2004 key). I used the 400 gf switch for my failed unlock button, but comparing the operating force to the stock switches I think 300 gf would be closer to correct. BTW the description says it is a thru-hole part. This is incorrect it is surface mount as shown in the picture. De-Soldering and soldering this piece is easy. Just use a soldering pencil (get one at radio shack cheap) rather than a soldering gun.

 

Edited by clickman

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I just purchased a 1999 Boxster. The door locks work fine with the key and the dash toggle switch. However the key lock swicth on neither of the keys works, and both have fresh batteries and I can see the LED turn on when I press a button. I know that the battery has been drained at some time before I bought it and I have removed the battery to run some new radio wiring.

 

From searching online it looks like there is a system in the car to pair the keys and car. I tried one process I found to unlock car, turn on ignition, turn off ignition, hit lock key. No joy.

 

Any suggestions?

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I just purchased a 1999 Boxster. The door locks work fine with the key and the dash toggle switch. However the key lock swicth on neither of the keys works, and both have fresh batteries and I can see the LED turn on when I press a button. I know that the battery has been drained at some time before I bought it and I have removed the battery to run some new radio wiring.

 

From searching online it looks like there is a system in the car to pair the keys and car. I tried one process I found to unlock car, turn on ignition, turn off ignition, hit lock key. No joy.

 

Any suggestions?

 

The only way to match the keeps to the car (immobilizer) is with a Porsche diagnostic tool (i.e. PST2. PIWIS, or PIWIS 2) and your car's IPAS codes.

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Thanks. So from what you said the dealer is only person who can do this.

 

How do I get the IPAS codes

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Thanks. So from what you said the dealer is only person who can do this.

 

How do I get the IPAS codes

 

As stated here before... you can only get IPAS codes from Porsche through a dealer/ OPC.

If a Porsche dealer/ OPC does the work they have access - if a 3rd party shop does the work they will need you to get your IPAS codes from a dealer/ OPC.

These codes should be free - some dealers/OPCs may be reluctant to give them to you - if so then find another dealer/ OPC. Protect the codes as they are what is needed to forge keys.

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