Headlamps On Warning Chime
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
When the driver exits the vehicle with the driver door ajar, the headlamp switch is in the PARK or HEADLAMP position and the ignition is OFF, the BCM sends the headlamp on warning chime message to the IPC through the GWM to sound the headlamps on chime. The headlamps on chime sounds a 1-second chime tone continuously.
The IPC receives the headlamp on warning chime message from the GWM over the HS-CAN3.
The GWM receives the headlamp on warning chime from the BCM over the HS-CAN1.
When a chime request is received, the IPC sends the IPC chime request message to the ACM and the audio DSP (with THX ® audio system) to sound the chime.