Toyota Corolla (E170) 2014–2019 Owners Manual / Maintenance and care / Maintenance / General maintenance / Engine compartment
Toyota Corolla (E170): Engine compartment
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Circuit description
The throttle pressure that is applied to the primary regulator
valve (which modulates the line pressure) causes the solenoid
valve slt, under electronic control, to precisely and minutely
modulate and generate the line pressure according the extent
of the accelerator pedal depressed or the o ...
Engine hood/door
Preparation
Sst
Recomended tools
Equipment
...
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 ...