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alessioblaupunkt
10th January, 2020, 01:32 PM
500x key not detected

Dear locksmith,
500x arrived with water inside RFH module(= control unit for keys)
Tried to dry the RFH and remove oxide now it detect the key only if it is pressed against the start button.

A new RFH module behave the same.

Changed key battery, same problem.
Both key same behaviour.

Plus one key doesn't lock/unlock the car.
Tried every possible configuration with original diagnostic.
If I press a button with the SPECIFIC NON LOCKING KEY an error in EOBD immediately appear in the diagnostic:
"sync the key"
and the suggestion is: by driving the car.

I drove the car but nothing.

Apart this, both key are hard to detect through the start/run button.
Maybe the waterized RFH module has damaged the electronic inside the start/run button?

If I test the door handle with diagnostic it says that it recognize left and right front door handle
but the whole test fail because rear door handle are not recognized.

If I test the key location the car doesn't recognize where are the key (they are both inside).
The diagnostic say something like:
0 keys in trunk
0 keys in front (seats?)
0 keys in rear (seats?)

But if I lock the car with the mechanical key and I leave one key inside the car will open immediately the car,
so I think the car know there is a key inside and prevent to keep the car lock untill the man remove the key inside.

I will try the old RFH module and see if it the start/run button behave the same.
Please suggest something to do.

Manta1600
10th January, 2020, 02:57 PM
Try to replace or repair the rear handle

qeso705
10th January, 2020, 05:26 PM
Can you be so kind and share full content from both modules?

alessioblaupunkt
12th January, 2020, 09:37 PM
Update:
the old RFH module perform better than the new:
* both keys "recognized" by start/run button
* both keys open and close the car

The new RFH module:
* key not detected, had to push the keys against start/run button to have IGNITION
* only one key open and close the car

So what's wrong with new RFH module?
Voltage too low while "programming"?
Incorrect programming?

I was taking the car for too much time so I give it to the customer,
so no more test are possible.
That's what my boss want, give the car ASAP.