Toyota Corolla Cross: Rear Lower Arm

 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

 Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure (P0AA749)

DESCRIPTION The hybrid vehicle control ECU monitors the insulation monitoring circuit located in the battery ECU assembly and detects malfunctions. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note P0AA749 Hybrid/EV Batter