Check on the engine
1. Check the operation of the electric fan of the cooling system at an engine operating temperature of no more than 83°C.
A) Turn on the ignition.
6) Make sure the cooling fan is not spinning.
Otherwise, check the cooling fan relay and coolant temperature switch, and check the connector and wire between them.
V) Disconnect the coolant temperature switch sensor connector.
4A-FE, 5A-FE
7A-FE
3S-DE, 4S-FE
2C
G) Make sure the cooling fan is spinning.
Otherwise, check the blower relay, blower, main engine relay, and check for a short in the circuit between the relay and the coolant temperature switch.
d) Connect the coolant temperature switch sensor connector.
2. Check the operation of the cooling system fan when the engine temperature is more than 93°C.
A) Start the engine and warm it up until the coolant temperature is above 93°C.
6) Make sure the cooling fan is spinning. If not, replace the coolant temperature sensor.