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U1111ModerateNetwork Communication / CAN Bus

U1111 on 2009-2022 Volkswagen Tiguan (4Motion, SE 4Motion, SEL 4Motion, SEL Premium R-Line 4Motion) — Function Restricted Due to Missing Message(s)

1 vehicles · 1 makes · $250-$2,200 repair

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Most Reported On

2009-2022Volkswagen Tiguan4Motion +3

U1111 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2009-2022 Volkswagen Tiguan (4Motion, SE 4Motion, SEL 4Motion, SEL Premium R-Line 4Motion), with repair costs ranging from $250 to $2,200.

On This Page

  • Common Causes
  • Repair Cost
  • Vehicles (1)
  • Related Codes
  • FAQ
  • Sources (3)
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Common Causes

1Another control module offline, unpowered, or failed (frequently the module named in the missing-message freeze frame)
2CAN bus wiring fault - open, short, chafed harness, or corroded connector
3Blown fuse or bad ground feeding the transmitting module
4Module replaced but not coded, adapted, or component-protection released
5Gateway (J533) coding or installation-list error after a module was added or removed
6Weak battery or low system voltage causing modules to drop off the bus

Typical Repair Cost

$250 - $2,200

Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.

Diagnostic Tools

U1111 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.

Vehicles Affected (1)

Volkswagen U1111 page →
TiguanModerate

Haldex 4Motion AWD Pump Screen Clogging and Clutch Pack Burnout

2009-2022$250-$2,200

Related Codes (3)

U1110Network Communication Fault (manufacturer-specific; commonly Lost Vehicle Speed Message)U1118Lost Communication (Manufacturer Specific - SRS)U1121Databus - Missing Message

FAQ

What does U1111 mean?

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.

What are the most common causes of U1111?

The most common causes of U1111 are: 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. The specific cause varies by vehicle.

How much does it cost to fix U1111?

Repair costs for U1111 range from $250 to $2,200, depending on the vehicle and root cause.

Which vehicles are affected by U1111?

Au7o has documented U1111 across 1 vehicle models from 1 manufacturers: Volkswagen.

Sources (3)

  • ForumIndustry keeping quiet on Haldex 4WD failures - VW Tiguan Forum
  • ForumHaldex Clutch Pump And Filter Change - VW Tiguan Forum
  • ForumTiguan Haldex Clutch Pump Replacement? - VW Tiguan Forum
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.

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