Driver's side parking lamps will not turn off?

Yep, this means the BCM is going out. to be sure we should do a CAN scan. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ


Here is how to change the BCM out and its location, you can get a preprogrammed unit by searching Google or Ebay.

Hi Ken,

Thank you so much for the quick and detailed reply. I will review and try this, and report back. I spent the day today fiddling with batteries, relays and fuses, so this helps immensely.

You are welcome, please let me know how it goes.

Hi Ken,

Thank you again for the advice. I've been fiddling with this all week. I picked up a scanner from Amazon, and it found a few issues. The obvious one was:

BCM (Body Control Module - TIPMCGW/FCMCGW)
B11B0-18
Front / Rear Left Parking Lights and Front Left Side Marker - Circuit Current Below Threshold"

So, the BCM knew about the problem! And even stranger, it reported the following four other faults:

B12C7-15 High Beam Right - Circuit Short To Battery Or Open Active
B12C5-15 High Beam Left - Circuit Short To Battery Or Open Active
B12C3-15 Low Beam Right - Circuit Short To Battery Or Open Active
B12C1-15 Low Beam Left - Circuit Short To Battery Or Open

Do you still think the BCM is going out? Or is it accurately reporting something that it sees occurring in the van?

Further piece of the puzzle: The main display on the dashboard also now states "Parking Lights Out" and "Daytime Running Lights Out". I assume those are messages via codes from the BCM.

Of course, it's a bit backwards... the parking lights aren't *out*. They're the opposite of out :).

If you have any further ideas, I would very much appreciate your feedback. Thank you!
John

Hi Ken,

Thank you again for the advice. I've been fiddling with this all week. I picked up a scanner from Amazon, and it found a few issues. The obvious one was:

BCM (Body Control Module - TIPMCGW/FCMCGW)
B11B0-18
Front / Rear Left Parking Lights And Front Left Side Marker - Circuit Current Below Threshold"

So, the BCM knew about the problem! And even stranger, it reported the following four other faults:

B12C7-15 High Beam Right - Circuit Short To Battery Or Open Active
B12C5-15 High Beam Left - Circuit Short To Battery Or Open Active
B12C3-15 Low Beam Right - Circuit Short To Battery Or Open Active
B12C1-15 Low Beam Left - Circuit Short To Battery Or Open

Do you still think the BCM is going out? Or is it accurately reporting something that it sees occuring in the van.

Further piece of the puzzle: The main display on the dashboard also now states "Parking Lights Out" and "Daytime Running Lights Out". I assume those are messages via codes from the BCM.

Of course, it's a bit backwards... the parking lights aren't *out*. They're the opposite of out :).

If you have any further ideas, I would very much appreciate your feedback. Thank you!
John

I should have had you double check all fuses, please go over this guide to help, if all fuses are good the BCM sounds bad.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what happens.

Hi Ken,

Thanks for this... I will go through the fuses one by one. I am now intimately familiar with the location of the three fuse boxes in the van :).

I will report back...
John

Sounds good, please let me know.

Ken,

Thank you so much for all your advice. I learned a lot fiddling with this thing!

I've resolved the issue: It turns out it was a faulty trailer harness module that was back feeding power into the lights. I traced the harness wiring to the module and pulled the fuse for it at the battery.

Thanks again for all the advice.
John

You are welcome, please use 2CarPros anytime we are here to help.