LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2010 >> EX35 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual, Navigation System >> BOSE Audio With Navigation >> Component Diagnosis >> DTC U121F: Av Control Unit >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U121F: Av Control Unit: Description

PART DESCRIPTION CHART

Part name Description
AV CONTROL UNIT
  • Integrates HDD (hard disk drive) allowing map data and music data to be stored.
  • It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit.
  • The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions.
  • It is connected to ECM and unified meter and A/C amp. via CAN communication to obtain necessary information for the vehicle information function.
  • It inputs the automatic brightness ON/OFF signals that are required for the display dimming control.
  • It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).