The driver's door lock actuator has stopped unlocking the car. I have been using the trunk lock which unlocks all of the doors fine.

I bought a replacement door lock actuator and it does not seem to be fixing thing.

I was wondering if the electrical portion of the door lock actuator is my problem. Can I test the three pins and what should the voltages be?

Or, is it a mechanical linkage problem between the door lock actuator and the door handle. Again, the trunk unlocks all of the doors, the drivers door does nothing.

Thanks.

- Blaine

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2004 E320 4matic
2000 E320 wagon
-- in the past---
1992 190E 2.3 5-speed! (European Delivery Baby)
2000 ML320
1978 240D - 340k mi