Toyota Corolla Cross: M20a-fks Spark Plug

 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

 Cold Start Ignition Timing Performance (P050B00)

MONITOR DESCRIPTION A monitor will run when the engine is started at an engine coolant temperature of -10 to 50°C (14 to 122°F). If certain conditions are met, a DTC is stored after the engine idles for 13 seconds (2 trip detection logic). This DTC is designed to monitor the ignition timing at c