Toyota Corolla Cross: Ecm

 Cooling is Poor

DESCRIPTION If the cooling effect of the air conditioning system is weak, the following factors may be the cause. Symptom Factor Cooling effectiveness is poor Cooling response is slow ECO drive mode function (air flow volume is restricted due to ECO drive

 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