U011DLost Communication With All Wheel Drive Control Module
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- U011D signals a lost all-wheel-drive control module. In contrast to a single coupling controller (U0114) or a transfer case module (U0102), this unit manages an entire on-demand AWD system, deciding when and how much torque goes to the secondary axle, which in some cars is driven by its own electric motor. It draws wheel speed, steering and torque data from the bus and reports its state to stability control. No manufacturer documents U011D publicly; Stellantis, for one, files the case under U0102, which its Jeep Wrangler bulletin 23-033-25 calls Transfer Case Control Module/AWD. Typical consequences are an AWD warning lamp and drive on one axle only; emissions are not affected, so a MIL is not expected.
- What you may notice
- AWD warning lamp or message
- Drive on one axle only
- Stability control may also show a warning
- Likely causes
- LikelyAWD module without power or ground
- PossibleWater or corrosion at the module connector near the rear axle
- PossibleChafed or open CAN wiring to the module
- RareAll-wheel-drive control module internally faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.