Toyota Corolla (E170): Automatic air conditioning system

Air outlets and fan speed are automatically adjusted according to the temperature setting.

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Circuit description
The shift solenoid valve sl is turned ”on” and ”off” by signals from the ecm in order to control the hydraulic pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch. Fail safe function: if the ecm detects a malfunction, it turns the ...

Diagnostic trouble code chart
If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...

Air conditioning filter
The air conditioning filter must be changed regularly to maintain air conditioning efficiency. Removal method 1Turn the engine switch off. 2 Open the glove box. Slide off the damper. 3 Push in the glove box on the vehicle’s outer side to disconnect the claws. Then pull out the glove box ...