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P1178 on the 2004 Hyundai XG350

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name P1178
04360222005-02-01. Service bulletin. DIAGNOSTIC TROUBLE CODE (DTC) P1178 -ELECTRONIC THROTTLE SYSTEM (ETS) MOTOR POWER-OPEN AND P1118 (ETS) MOTOR. *NM

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.