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Home >> Ford >> 2021 >> Expedition SSV, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrumentation, Message Center And Warning Chimes (1 Of 2) >> Description And Operation >> Warning Chimes - System Operation and Component Description >> System Operation >> Turn Signal-Hazard On Chime Tone

Turn Signal-Hazard On Chime Tone

The IPC provides a repetitive 1-second on/off tick-tock chime tone along with visual RH or LH turn indicators to inform the driver the turn signal or hazard lamp function is on. The turn signal on chime tone provides a speed compensated volume feature that uses vehicle speed to step up the volume of the chime tone.

The IPC receives the left turn lamp on request, the right turn lamp on request or both from the GWM over the HS-CAN3.

The GWM receives the left turn lamp on request, the right turn lamp on request or both from the BCM over the HS-CAN1.

The IPC receives the vehicle speed message from the GWM over the HS-CAN3. The GWM receives the vehicle speed message from the PCM over the HS-CAN1.