Daytime running lights

The lights have worked perfect up to this point. When in the auto position, the lights all work when the vehicle is started. However, when you kill it, the DRL stay on unless you manually turn all the lights off. Why do just the DRL stay on? Anyone know how to fix this? If you forget to turn the switch off now, it will drain the battery. Thank you!

 

Never seen this before. I have no idea. Switch malfunction?

 

Do you have a remote start system installed?

 

No remote start on the truck. It must be a switch or something went bad. Got me confused.

 

Short somewhere ?

 

It’s interesting that if you turn the lights all the way off they go off. Curious if a relay or fuse issue.

 

Control module for the DRL’s .. just brain storming. Since they turn off and on manually it points me to whatever controls them turning off with the “auto feature”

 

Seems there's something wrong with the Body ECU. (it's inside the fuse/relay box in the cab)