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Service bulletin 0806417

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10224722
Published by NHTSA2022-10-24
Manufacturer's number0806417
Manufacturer's date2017-08-03
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Audio System Warning Light Illuminated This bulletin involves checking and installing a protective cover on the amplifier. The customer may describe that the when the audio system warning light is illuminated the radio will turn on but with no audio sound.Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:U1746-87 - AMP (Amplifier Module)-Missing Message. B10AA-4A - Check Configuration Failed-Incorrect Component Installed. U197C-83 - Message Transm2 Plausibility Error-Value Of Signal Protection Calculation Incorrect. U0186-31 - Lost Communication With Audio Amplifier - No Signal.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Trouble codes named

B10AA, U0186, U1746, U197C

Vehicles listed
ALFA ROMEO 4C SPIDER2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.