U0492Invalid Data Received From Television
- Generic OBD-II code · Network
- How the car detects it
- U0492 is set when a television tuner keeps transmitting but the module listening to it, usually the head unit or a display controller, cannot use what arrives, for instance because values lie outside their defined range, a message counter stalls or a checksum is wrong. GM's 2011 code lists for the Saab 9-5 and 9-4X simply call the matching lost-contact code U0191 Television, meaning a separate TV receiver on the bus. Elsewhere the tuner lives inside the radio: for Japanese-market Jeep Grand Cherokee and Cherokee of 2014, bulletin 08-067-15 updated the radio software, which among other things cured a blurry digital TV picture. No manufacturer documents U0492 itself. Expect a missing or frozen TV image while radio and other sources carry on; driving is unaffected, no MIL.
- What you may notice
- No TV picture or a frozen, blurred image
- Radio and other media sources keep working
- Likely causes
- LikelyTuner or head-unit software with faulty TV data, cured by an update
- PossibleInternal fault of the TV tuner
- RareSupply, ground or bus connection fault at the tuner
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.