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Old 11-09-2019, 08:10 PM   #1
nylpug
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testing door actuator

2002 330cic Driver side door not locking via remote nor with the lock/unlock button inside the car. The passenger side lock works as usual.
I took out the driver side actuator out today. Took about 15 minutes to slide it out.

Now my question is: how can I test the actuator? What pins do I hook up to a 12-volt battery to test to see if it is bad or not? Attached is a wire diagram of the actuator plug.

I want to test it to make sure it is the actuator that is not working. Which pins do I test?Click image for larger version

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Old 11-09-2019, 08:37 PM   #2
BaliDawg
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I would first verify that all the expected signals appear on that connector during various lock/unlock actions. This isolates the problem between the controller and the actuator.

Looks like you apply voltage to pin 1 to lock and pin 5 to unlock.
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Last edited by BaliDawg; 11-10-2019 at 01:49 AM.
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Old 11-10-2019, 01:19 AM   #3
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BaliDawg, pin 4 is not ground for the actuator motors pins 1 and 5 that you mentioned. Pin 4 ground is for the Hall effects sensor on pins 6, 7 and 8.


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Old 11-10-2019, 01:49 AM   #4
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Quote:
Originally Posted by scottjoh View Post
BaliDawg, pin 4 is not ground for the actuator motors pins 1 and 5 that you mentioned. Pin 4 ground is for the Hall effects sensor on pins 6, 7 and 8.
Thanks for the correction.
Iíll fix my post.
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Old 11-10-2019, 11:13 PM   #5
nylpug
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Anyone wants driver side door actuators for free to test if they are good or not? I don't think they work but don't know how to test them. One of them for sure doesn't work as it came from my 330cic.

Here is the story: I got 2 actuators from a junk yard to try to fix my door lock problem. I got 2 in case one of them is bad as all parts were on sale that day. I changed the first one and it didn't work. And then I changed the second one and it worked. In thinking about my installation, I might not have installed the first one correctly.

If anyone wants these driver door actuators, they are free (if not far from Pasadena, CA). Again, one of them for sure doesn't work and the other one likely doesn't work either.

In hindsight, I probably will go with new actuators and not used ones in future.
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Old 11-18-2019, 11:37 AM   #6
scottjoh
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If you have a 2-dr E46 you should always use new actuators.


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