Toyota Camry (XV70): How To Troubleshoot Ecu Controlled Systems

 Microphone Circuit Open (B157213)

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 B157213 Microphone Circuit Open Current at terminal MCVD is lower than t

 System Voltage Circuit Short to Ground or Open (P056014)

MONITOR DESCRIPTION The battery supplies electricity to the ECM even when the engine switch is off. This power allows the ECM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage falls below a minimum level, the memory is cleared and the ECM determines th