Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle

Toyota Corolla (E120): Electronic controlled automatic transaxle

Precaution

Notice

: perform the reset memory (at initialization) when replacing the automatic transaxle assy, engine assy or ecm .

Hint

: initialization can not be completed by only removing the battery.

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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 ...

Vehicle information
This screen can be used to display the fuel consumption. “Trip Information” or “Past Record” screen Press “CAR” to display the “Trip Information” or “Past Record” screen. Fuel consumption ■ Trip information If the “Trip Information” screen does not appear, select ...

Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...