Toyota Corolla (E170): Maintenance and care

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Circuit description
A thermistor is built in the engine coolant temperature sensor and changes the resistance value according to the engine coolant temperature. The structure of the sensor and connection to the ecm is the same as those of the intake air temperature sensor. Hint: if the ecm detects the dtc ...

Inspection
1. Windshield wiper switch assy Continuity check  check the continuity of each terminal of the connector. Front wiper switch Standard: Front washer switch Standard: W/o intermittent time adjust: intermittent operation check  connect the voltmeter (+) te ...

Circuit description
The purpose of this circuit is to prevent the engine from stalling while driving in lock–up condition, when brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signals to the ecm. Then the ecm cancels the operation of the lock–up clutch while braking is i ...