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VW U1400 Code – ABS/ESP Communication Fault
No
Safe to drive :
VW vehicles only
Applies only to :
Not applicable to :
This explanation does NOT apply to Audi, BMW, Ford, Toyota, or others.
High
Severity level :
When Does This Code Appear on the Vehicles
VW U1400 appears with ABS/ESP module communication errors.
What This Code means on the Vehicles
Indicates CAN bus fault between gateway and ABS/ESP modules.
Why This is different from a generic OBD2 Code
Standard OBD-II scanners cannot interpret UDS sub-codes.
Common Situations That Trigger This Code
ABS module failure; Wiring corrosion; Connector issues.
What Will NOT Fix This Code
Replacing generic sensors; Ignoring communication fault.
How to Clear This Code on Vehicles
Test wiring and ABS module; clear using OEM or VCDS tool.
Related Manufacturer Specific Codes
VW U1300; VW U1401
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