B1289 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1289 – Video Display Brightness Control Signal

 

B1289 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1289 Possible Causes

 

Faulty Video Display,Video Display harness is open or shorted,Video Display circuit poor electrical connection

 

B1289 Description

 

The 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.