B1289 GMC Possible Causes
- Faulty Video Display
- Video Display harness is open or shorted
- Video Display circuit poor electrical connection
How do I fix code B1289 GMC
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
B1289 GMC 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
Cost of diagnosing the B1289 GMC code
Labor: 1.0The cost of diagnosing the B1289 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
B1289 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1289 GMC MeaningThe 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.
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