U0519Invalid Data Received From Door Switch D
- Generic OBD-II code · Network
- How the car detects it
- Door switch unit D reports the positions of its buttons as coded data. Inside such packs several contacts often share one input through resistor networks or comparators, as Microchip explains for the switch interface of its LIN chips ATA6641/ATA6642, and the stages of a window rocker are distinguished by voltage level. Worn or wet contacts can then yield combinations the receiver regards as impossible, such as up and down at the same time, and the frame is thrown away. No manufacturer assigns D to a particular door or documents U0519; GM's Saab 9-5 code list, for example, handles the rear door switch panels under separate codes, U0203 and U0204. A sticky or water-damaged switch pack is the most likely cause; U0218 covers complete loss of the unit.
- What you may notice
- Window moves the wrong way or not at all from this switch
- Express function triggered or missing unexpectedly
- Likely causes
- LikelyWorn, sticky or wet contacts producing impossible switch combinations
- PossibleElectronics of switch unit D faulty
- RarePoor ground or damaged data wire to the switch
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.