Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Idle signal circuit / Circuit description
Toyota Corolla (E120): Circuit description
When the idle switch is turned on, a signal is sent to the cruise control ecu assy. The cruise control ecu assy uses this signal to correct the discrepancy between the throttle valve position and the actuator position sensor values to enable accurate cruise control at the set speed. If the idle switch is malfunctioning, problem symptoms also occur in the engine, so also inspect the engine.

Wiring diagram

Other materials:
Diagnosis system
Description
when troubleshooting obd ii vehicles, the only difference
from the usual troubleshooting procedure
is that you need to connect an obd ii scan tool complying
with sae j1987 or a hand–held tester to the
vehicle, and read off various data output from the
vehicle†...
For your information
Main Owner’s Manual
Please note that this manual applies to all models and explains all equipment,
including options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing.
Howeve ...
Canceling and resuming the constant speed control
1 Pulling the lever toward you cancels the constant speed control.
The speed setting is also canceled when the brakes are applied or the clutch
pedal (manual transmission) is depressed.
2 Pushing the lever up resumes the constant speed control.
Resuming is available when the vehicle speed is mo ...


