2019 ram 3500 taillight wiring

[Jimmy07]

I will give it a go later today. The CAN blocks one is black and green and one is white and green I hooked the white connector to the white CAN BAR and the black connector to the black CAN bar. I guess that's wrong

Based on a few other members recent experiences with that bypass, yes, that’s wrong (even though everyone would assume the same thing you did based on the color of those connectors).

 

[Nathanael Carpenter]

So I guess the CAN wires were backwards which is dumb since the instructions are clear to color match them. But it worked and I was able to fix the brake light issue and turn of all the lights on the dash! I just want to thank you all for the help I definitely couldn't have ever figured that out on my own

 

[Nathanael Carpenter]

I hate to bug yall again this truck is going to be the end of me lol
So the taillights and turn signals works great for about 5 minutes then the right side quits working both the blinker and brake light but the running light stays on
The fault code is B1646
Rear Right Turn Lamp Control
Short circuit to ground
Last test completed unsuccessful
Error present
Failure warning lamp 'ON': Not requested
I've cleared the code 2 times but it keeps coming back on the dash says I have right rear lamp out

 

[Nathanael Carpenter]

Just found that it only does this when the truck is turned on if I have it on run it resets automatically and works fine but as soon as I start it and let it idle about 3 to 5 minutes it quits working

 

[jsalbre]

Do you still have the brake and turn signal wires spliced together?

 

[Nathanael Carpenter]

Do you still have the brake and turn signal wires spliced together?

No. I did but then cut them and cleared the faults to make sure that wasn't the issue

 

[Nathanael Carpenter]

Just not sure why it seems to only have an issue with the right side and only when the motor is running. I triple checked to make sure that I set all these
CBC Features: Combined Rear Lighting Enabled- YES

CBC Features: LED Stop Lamps Present- YES

CBC Features: LED Tail Lamps Present- YES

CBC Config I/O: Connector E Pin 3/Connector F Pin 42: Rear Turn Lamps Output Present- NO

CBC Config I/O Usage: Left Rear Turn Lamp Diagnostics Present - Pin F27- NO

CBC Config I/O Usage: Right Rear Turn Lamp Diagnostics Present - Pin F31- NO

CBC Config I/O Usage: Separated Lighting Brake Lamp Dropout- NO