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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Safety Connect System - Diagnostic Codes (1 Of 2) >> Safety Connect System >> DTC B1572-13: Microphone Circuit Open [10/2022 - ] >> Description

DTC B1572-13: Microphone Circuit Open [10/2022 - ]: Description

This DTC is stored when the DCM (telematics transceiver) detects a malfunction in the telephone microphone assembly circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
B1572-13 Microphone Circuit Open Current at terminal MCVD is lower than the malfunction threshold for 10 seconds or more while the ignition switch is ON
  • DCM (telematics transceiver)
  • Telephone microphone assembly
  • Harness or connector
Telematics A