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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Safety Connect System (HEV) - Diagnostic Codes, Symptom Tests & Circuit Tests) >> SAFETY CONNECT SYSTEM (for HV Model) >> DTC B1572-13: Microphone Circuit Open [09/2022 - ] >> Description

DTC B1572-13: Microphone Circuit Open [09/2022 - ]: Description

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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
B1572-13 Microphone Circuit Open Current at terminal MCVD is lower than the malfunction threshold for 10 seconds or more while the power switch is on (IG)
  • DCM (telematics transceiver)
  • Telephone microphone assembly LH
  • Harness or connector