Toyota Corolla Cross: M20a-fks (fuel)

 Catalyst System Efficiency Below Threshold Bank 1 (P042000)

MONITOR DESCRIPTION The ECM uses air fuel ratio sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the air fuel ratio sensor (sensor 1), sends pre-catalyst information to the ECM. The second sensor, the air fuel ratio sensor

 DCM Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area DCM Communication Stop Mode Communication stop for "DCM" is indicated on the "Communication Bus Check" screen of the GTS. Click here DCM (telemat