U0199Lost Communication With Door Control Module A
- Generic OBD-II code · Network
- How the car detects it
- U0199 reports that door control module A has dropped off the bus; most makers assign it to the driver's door. Chrysler bulletin 08-061-12 (300 and Charger 2005-2010) calls it the driver door module: the front windows and central locking stop working, a one-minute battery disconnect is tried first, and the module is replaced if contact does not return. Volkswagen tech tip 97-21-02 (Atlas, Golf, Jetta, Tiguan, Taos 2019-2022) sees U019900 or U020000 with many warnings and windows moving on their own, caused by loose pins in the connector at the driver's A-pillar, on the comfort CAN lines. Ford SSM 53980 (F-Super Duty 2023-2025) blames ground G201, to be torqued to 8 Nm. U0200 to U0202 cover doors B to D, U049A invalid data. Normally no MIL.
- What you may notice
- Power windows and locks on the door inoperative
- Windows move on their own or several warning lamps light up
- Mirror adjustment or switch lighting dead
- Likely causes
- LikelyLoose or backed-out pins in the door-to-body connector (VW)
- PossibleBroken wires in the door hinge harness
- PossibleLoose ground connection (Ford G201)
- PossibleDriver door module faulty (Chrysler 300/Charger)
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.