Toyota Corolla (E170): Do-it-yourself maintenance

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Circuit description
The variable valve timing (vvt) system includes the ecm, the oil control valve (ocv) and the vvt controller. The ecm sends a target ”duty–cycle” control signal to the ocv. This control signal, applied to the ocv, regulates the oil pressure supplied to the vvt controller. Camshaft timin ...

On–vehicle inspection
1. Inspection throttle body idle speed control valve assy Notice: it is impossible to check the resister value and the operation of isc valve by itself, because the isc valve has an ic circuit inside it, which transforms the duty signal from the ecm to the derive signal. After check ...

Deleting a registered phone number
1 Select “Delete contacts” using . 2 Select the desired phone number using and press (YES). To delete all of the registered phone numbers, select “All delete” using and press (YES). ...