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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation System (Diagnostic Codes & Symptom Tests) (Hybrid) >> Navigation System >> DTC B1593: No Response from Stereo Component Amplifier; DTC B15D3: Stereo Component Amplifier Disconnected >> Description

DTC B1593: No Response from Stereo Component Amplifier; DTC B15D3: Stereo Component Amplifier Disconnected: Description

The navigation receiver assembly and stereo component amplifier assembly are connected by the AVC-LAN communication line.

When an AVC-LAN communication error occurs between the navigation receiver assembly and stereo component amplifier assembly, these DTCs will be stored.

DTC No. DTC Detection Condition Trouble Area
B1593 Within the time-out period, there was no response from the stereo component amplifier assembly to the following requests from the master unit:
  • System inspection request
  • System inspection result request
  • Diagnostic memory request
  • Stereo component amplifier assembly power source circuit
  • AVC-LAN circuit between navigation receiver assembly and stereo component amplifier assembly
  • Stereo component amplifier assembly
  • Navigation receiver assembly
B15D3*1 When either condition below is met:
  • Stereo component amplifier assembly is/was not connected while the ignition switch is ON or ACC.
  • Communication between the master unit and the stereo component amplifier assembly is not possible when the engine is started.

HINT: