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Home >> Lexus >> 2012 >> IS F >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System (W/O Navigation System) (W/ MULTIDISPLAY) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display) >> DTC B156B: Multi-media Interface ECU Disconnected; DTC B156E: No Response from Multi-media Interface ECU >> Description

DTC B156B: Multi-media Interface ECU Disconnected; DTC B156E: No Response from Multi-media Interface ECU: Description

The display and navigation module display and multi-media interface ECU are connected by the AVC-LAN communication line.

When an AVC-LAN communication error occurs between the display and navigation module display and the multi-media interface ECU, these DTCs will be stored.

DTC No. DTC Detection Condition Trouble Area
B156B*1 A device that is listed in the AVC-LAN connected device record of the master unit is missing.
  • Multi-media interface ECU power source circuit
  • AVC-LAN circuit between display and navigation module display and multi-media interface ECU
  • Multi-media interface ECU
  • Display and navigation module display
B156E No response to the diagnostic memory request from the master unit.

HINT: