DTC B2419: Twilight Sentinel Photo Sensor Malfunction: Description

IPC monitors input of ambient light sensor to determine ambient light information for exterior lighting feature. DTC B2419 will set when twilight photocell percentage count is less than one (shorted) or more than 254 (open) for more than 3 seconds. When DTC B2419 is set, IPC assumes that ambient light level is dark and changes status of exterior lighting to appropriate default.