Manufacturer-Specific Diagnostic Codes List

Learn what BMW shadow codes mean and why they matter for diagnostics.

BMW 2E8E commonly appears after battery replacement without registration.

VW U163F00 indicates CAN bus communication fault affecting multiple modules.

VW U1300 indicates ABS/ESP module communication fault, not visible on generic scanners.

VW U155F00 indicates gateway module signal inconsistency in VW vehicles.

Audi U14D600 shows CAN bus communication issues with engine management modules.

Audi U14D601 indicates CAN bus mismatch between powertrain and gateway modules.

VW U1400 shows CAN bus fault affecting ABS/ESP modules, brand-specific.

VW U1401 indicates unexpected signal from ABS/ESP module, VW-specific.