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Yet another keyless remote entry central locking alarm system thread


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So my keyfob stopped unlocking the doors and trunk. There are a number of threads on this topic, but not much of any resolution.

Here's all the clues I have:

Key LED does flash when buttons are pressed. Battery is good. I only have one key (but I don't think the key is the issue). Have unlocked the door and tried to use the keyless entry immediately after, no change. I have also started the car and tried to use the keyless entry immediately after, no change.

I also reversed the battery in the keyfob for 2 seconds and then turned it back, no change.

Durametric tells me:

49 - K Lead status: not present

54 - Radio receiver defective

60 - Central locking limit position lock not reached

(There were a couple other codes, but I have since cleared them and the codes have not come back yet.)

Central locking unit under the driver's seat has been removed and replugged in. Fuse is good. No moisture. Solder joints look good.

I have not taken this to a dealer to get reprogrammed.

Any ideas on what this could be? Is my central locking system computer bad?

Thanks in advance!

Edited by carDorque
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Have you tried your second key?

Did you you try the hard reset by placing the battery in backwards for 2 seconds. Then replacing it normally?

If you tried all of these then you will likely need a re-program or a new key.

HI Loren,

Just tried the battery reversal thing (I didn't get it until I tried it. I just shorts the two contacts because of the shape of the battery. Very clever.) Unfortunately, no worky still.

Also, I don't have a second key, so can't try that.

Should a key remote still work even with these fault codes?

Thanks!

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Yes, the key should still work.

43 means the PST2 could not communicate with the alarm unit (fairly common sometimes occurrence).

54 is likely if you have an after market radio and the previous owners did not proper disconnect the Porsche radio alarm wire.

60 Is locking fault that is very common and usually not a problem - it can occur if you hit the lock key before the door is closed (and it can't clock). Occasionally there will be a mechanical failure in the door lock mechanism - but if you can lock the car with a key then that is unlikely.

If you clear these they likely won't come back and would not be a reason for the remote function to not work.

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Yes, the key should still work.

43 means the PST2 could not communicate with the alarm unit (fairly common sometimes occurrence).

54 is likely if you have an after market radio and the previous owners did not proper disconnect the Porsche radio alarm wire.

60 Is locking fault that is very common and usually not a problem - it can occur if you hit the lock key before the door is closed (and it can't clock). Occasionally there will be a mechanical failure in the door lock mechanism - but if you can lock the car with a key then that is unlikely.

If you clear these they likely won't come back and would not be a reason for the remote function to not work.

Ok great, thanks Loren. I'll see if it can be reprogrammed and post the results.

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"Radio receiver defective" in Porsche language refers to the remote system (radio waves) not on the radio (in car entertainment), not sure about Durametric. PIWIS can help you out.

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