U1111 on Volkswagen
Function Restricted Due to Missing Message(s)
U1111 on Volkswagen vehicles indicates function restricted due to missing message(s). Au7o has documented this code across 1 Volkswagen model — most commonly on Tiguan. A control module is not receiving one or more CAN/data-bus messages it needs to operate, so it has deliberately restricted or disabled its own function rather than act on stale data. U1111 is a symptom code, not a root-cause code: it tells you which module went blind, and the real fault is whichever module or bus segment stopped transmitting. On a VW Tiguan with a Haldex AWD complaint, U111100 in the cluster or Haldex controller usually means the AWD controller has dropped off the bus or is not sending its status. Typical repair costs on Volkswagen range from $250 to $2,200, depending on the specific model and root cause.
Common Causes of U1111
- •Another control module offline, unpowered, or failed (frequently the module named in the missing-message freeze frame)
- •CAN bus wiring fault - open, short, chafed harness, or corroded connector
- •Blown fuse or bad ground feeding the transmitting module
- •Module replaced but not coded, adapted, or component-protection released
- •Gateway (J533) coding or installation-list error after a module was added or removed
- •Weak battery or low system voltage causing modules to drop off the bus
U1111 on Volkswagen by Model
Volkswagen Tiguan(1 issue)
- Haldex 4Motion AWD Pump Screen Clogging and Clutch Pack Burnout2009-2022
4Motion Tiguans use a rear-axle Haldex coupling with an electric pump that pressurizes the clutch pack. Debris from clutch wear accumulates on the small pump inlet screen/filter, the pump strains and fails, the clutch pack no longer clamps properly and eventually burns. Owners report the failure is aggravated because Volkswagen's service schedule specifies a fluid change but not a filter or screen change, so the strainer is left in place for the life of the vehicle. Symptoms are loss of AWD (front wheels spin on loose surfaces), an AWD/4Motion warning, and in some cases shudder or clunk from the rear on tight turns.
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View U1111 across all makes →Frequently Asked Questions
What does U1111 mean on Volkswagen?▼
U1111 stands for "Function Restricted Due to Missing Message(s)." A control module is not receiving one or more CAN/data-bus messages it needs to operate, so it has deliberately restricted or disabled its own function rather than act on stale data. U1111 is a symptom code, not a root-cause code: it tells you which module went blind, and the real fault is whichever module or bus segment stopped transmitting. On a VW Tiguan with a Haldex AWD complaint, U111100 in the cluster or Haldex controller usually means the AWD controller has dropped off the bus or is not sending its status. On Volkswagen specifically, this code is documented across 1 model.
What causes U1111 on Volkswagen vehicles?▼
Common causes on Volkswagen: Another control module offline, unpowered, or failed (frequently the module named in the missing-message freeze frame), CAN bus wiring fault - open, short, chafed harness, or corroded connector, Blown fuse or bad ground feeding the transmitting module, Module replaced but not coded, adapted, or component-protection released, Gateway (J533) coding or installation-list error after a module was added or removed. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U1111 on a Volkswagen?▼
Repair costs on Volkswagen range from $250 to $2,200, depending on the specific model and root cause.
Which Volkswagen models have U1111 documented?▼
Au7o has documented U1111 on 1 Volkswagen model: Tiguan.