Toyota Corolla Cross: M20a-fks (fuel)

 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) (P012800,P012807)

DESCRIPTION The ECM uses the engine coolant temperature sensor, installed to the water outlet, to monitor the operation of the thermostat. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P012800 Coolant Thermostat (Coolant Temperature Below Thermo

 Ignition Switch On/Start Position Circuit Low Circuit Short to Ground or Open (P253314)

DTC SUMMARY The hybrid vehicle control ECU stores a DTC when there is no auxiliary battery voltage to the IGR terminal even though there is auxiliary battery voltage to the IGP terminal. DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery power source is supplied to the IG