Technical Description (Comment)
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The ETACS-ECU and front-ECU operates the headlight automatic shutdown function, based on the signals from the following switches:
- Ignition switch (IG1)
- Taillight switch
- Headlight switch
If the function does work normally, a defect on relevant input circuits, the ETACS-ECU or the front-ECU is suspected.