Toyota Corolla (E120): Mil circuit

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Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

Tire pressure warning system (if equipped)
Your vehicle is equipped with a tire pressure warning system that uses tire pressure warning valves and transmitters to detect low tire inflation pressure before serious problems arise. ◆ Installing tire pressure warning valves and transmitters When replacing tires or wheels, tire press ...

Brake fluid
■ Checking fluid level The brake fluid level should be between the “MAX” and “MIN” lines on the tank. ■ Adding fluid Make sure to check the fluid type and prepare the necessary item. 1 Slide and lift up the rubber strip to partially remove it as shown. 2 Disconnect the ...