Puddle lights stop working

[Bobotheman]

Odd problem, puddle lights turn on no problem when approaching the vehicle. They work when you press the cargo light when vehicle is off. As soon as the vehicle is turned on they become inoperable. They will turn on with zone lighting, but not with cargo light or opening the door while truck is on. I've discovered if I unplugged and replug in the driver side mirror then start it they will work for that key cycle, once I shut it off the next time I start it they don't work again and won't till I unplug and replug in the side mirror before turning it on again. They always work when the ignition is off

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[Ivanberr2003]

Odd problem, puddle lights turn on no problem when approaching the vehicle. They work when you press the cargo light when vehicle is off. As soon as the vehicle is turned on they become inoperable. They will turn on with zone lighting, but not with cargo light or opening the door while truck is on. I've discovered if I unplugged and replug in the driver side mirror then start it they will work for that key cycle, once I shut it off the next time I start it they don't work again and won't till I unplug and replug in the side mirror before turning it on again. They always work when the ignition is off

Following, have the same problem. Not sure what it could be, checked Forscan since I did make changes in some modules but everything related to puddle lights in bcm, ddm, pdm, is set right. Maybe in the apim but not sure id have to go over it again

 

[Bobotheman]

Following, have the same problem. Not sure what it could be, checked Forscan since I did make changes in some modules but everything related to puddle lights in bcm, ddm, pdm, is set right. Maybe in the apim but not sure id have to go over it again

I didnt change anything in forscan, im starting to believe it's one or both of the batteries, occasionally it does work on its own and will work till ignition is turned off and door is opened.

 

[Ivanberr2003]

I didnt change anything in forscan, im starting to believe it's one or both of the batteries, occasionally it does work on its own and will work till ignition is turned off and door is opened.

Did you ever figure it out or find something out?

 

[Bobotheman]

Did you ever figure it out or find something out?

Dealership had multiple people quit/retire been waiting to reschedule so no updates as of yet

 

[Ivanberr2003]

Dealership had multiple people quit/retire been waiting to reschedule so no updates as of yet

Any updates now?

 

[Bobotheman]

Any updates now?

Not yet, I tried charging the battery after getting it back from dealer, who claims they couldnt figure it out. I have my doubts they tried, but after talking to service manager about my findings they are going to try replace the driver door module. So probably 2-3 weeks till part comes in and can schedule to bring it in my guess. In the meantime ill probably pay for fdrs for the shortest time and do a few of the pinpoint tests myself.

 

[Porpoise Hork]

Sounds like a possible fault in the BCM module. Use Forscan or a scan tool to check for any stored DTCs in the BCM, especially related to exterior lighting or mirrors. It may disable the puddle light circuit if it detects an intermittent fault, such as a short, overcurrent, or communication error.

 

[Bobotheman]

Sounds like a possible fault in the BCM module. Use Forscan or a scan tool to check for any stored DTCs in the BCM, especially related to exterior lighting or mirrors. It may disable the puddle light circuit if it detects an intermittent fault, such as a short, overcurrent, or communication error.

It's not the bcm, watching live data the bcm is telling them to turn on. The driver door module isn't telling them to turn on. When they are working the door module does command them on. So it seems to be either the door module or the gateway module. No codes are set.

 

[Porpoise Hork]

Hopefully you;ll be able to get it sorted out quickly. I'd say try taking it to a different dealer but I have a feeling your options are rather limited.

 

[Bobotheman]

Hopefully you;ll be able to get it sorted out quickly. I'd say try taking it to a different dealer but I have a feeling your options are rather limited.

for me to go to a different dealer my truck would have to go on a boat. So yeah im stuck with this one.

 

[TheDudeee]

Well...that is awkward, I did notice that the puddle light didn't came on when I walked toward it. Started up and the cluster lifted up like the christmas tree and I turned off for few mins. Started again and this time, it didn't go crazy except I got blind spot faults with no functions on driver side like adjusting the mirrors, locking/unlock, and rolling the windows.

On the forscan, two modules, BCM and IPMA are saying lost communication with Door Control Module 'A' and noticed that DDM does not load up. So it is going in for service tomorrow.

 

[Bobotheman]

Any updates now?

Dealer changed door module without any success, but I did figure out for me that if I open the door and wait for the intro graphic to play then wait for Guage cluster to go black again before starting truck the puddle lights will work for that ignition cycle. If I just jump in and turn it on when that graphic is going they dont work

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