B1289 - Video Display Brightness Control Signal
Tech notesDTC B1289 01 Video Display Brightness Control Signal Short to Battery
DTC B1289 02 Video Display Brightness Control Signal Short to Ground
DTC B1289 04 Video Display Brightness Control Signal Open Circuit
B1289 DescriptionThe radio can control the video display brightness on vehicles equipped with Rear Seat Entertainment (RSE) video. The radio varies a Pulse With Modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level. The Diagnostic Trouble Code (DTC) will set when the radio detects a short to voltage, short to ground, or an open/high resistance in the video display brightness control circuit 400 ms after the radio activates the remote enable circuit.
B1289 Information for specific makes
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