Toyota Corolla Cross: K120f (cvt)

 Communication between ECUs connected by LIN Bus off (B278588)

DESCRIPTION If the certification ECU (smart key ECU assembly) detects a communication error with an ECU connected to the certification bus lines for 7 seconds or more, DTC B278588 will be stored. DTC No. Detection Item DTC Detection Condition Trouble

 Engine Oil Pressure Sensor/Switch "A" Circuit Short to Battery (P052012)

DESCRIPTION Variable oil pump control uses the oil pressure control valve assembly, oil pressure and temperature sensor and ECM to optimize the oil pressure and oil volume required by each component to reduce friction by monitoring the engine temperature and engine speed. The oil pressure sensor