Door open warning when closed. Can’t lock. Help appreciated.. - Ram Promaster Forum
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post #1 of 5 Old 05-24-2019, 08:50 PM Thread Starter
BeWhereUR
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Door open warning when closed. Can’t lock. Help appreciated..

I have taken off for a weekend test run in the van while I’m in the middle of my build. I’ve noticed that the door ajar warning light is on even though I’ve gone around the vehicle several times and closed all the doors again. I could live with a warning light, but it seems to be interfering with my ability to lock the van. Using the key, I can lock the drivers and passengers doors as well as the rear door, but the slider does not have a key hole, so I am not able to lock it. The interior lick switch on the driver’s door only unlocks, but doesn’t lock. Same for the transponder. Any idea what may have caused this? And might there be a temporary workaround for locking the door? My most recent tasks involved insulating much of the vehicle. I also removed the rear interior courtesy light. I had remove the side courtesy light before, but to no detriment, so I don’t know that that’s the cause here. Any and all thoughts appreciated.

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post #2 of 5 Old 05-25-2019, 05:51 AM
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Most likely a wire in the right rear door. They plastic sleeve the wires rum thru when the door is opened and closed tend to wear and break in some peoples vans causing a short.

There is a specific wire (I don’t recall the color code off the top of my head) that causes this signal and the results you are experiencing. Many people (including me) switch this wire to turn the backup camera on and off manually. There are many threads about this condition and how to cure it if you consult the archives.

You might also want to check & clean the contact strip on the left inside of the sliding door when it’s opened. There are 4 contacts that can become corroded or dirty and cause a similar problem. Just rub them clean with a scrubby if that’s the case.

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post #3 of 5 Old 05-25-2019, 10:19 AM
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Definitely nothing to do with removing (unplugging) the courtesy lights in the cargo area. I've disconnected both of them with no ill effects.

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post #4 of 5 Old 05-25-2019, 10:46 AM
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When you open the sliding door, the c pillar has a button or plunger between the second and third contact. When you press this in, it signals the comp that the door is closed it could be missing or broken. As KOV said clean the contacts on the c panel and the door. There is an access panel on the inside if you need to mend some wires.
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post #5 of 5 Old 05-25-2019, 01:23 PM Thread Starter
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Thanks all for your help. I figured it out this morning. There is a button on the van body which is supposed to depress when the slider closes. There are also metallic sensors. On the door there are contacts which touch the sensors and also a piece of plastic which depresses the button when door is closed. That piece of plastic somehow broke off so the button wasn’t depressed (just me!). I took a piece of duct tape and taped down the button as a temporary fix. I had to make a butterfly shape with the tape so as to hold the button down without covering the contacts.

If anyone knows how to remove the rectangular part on the sliding door which holds the door components of this sensor system I’d like to remove it to be able to epoxy something there so the button will depress when the door closes (without duct tape).

Thanks again.

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