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

Wiring diagram

Inspection procedure

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    Using the interior lights
    Interior lights list Location of the interior lights Rear interior light Front interior/personal lights Operating the interior lights ■ Front Turns the door position on/off When a door is opened while the door position is on, the lights turn on. Turns the lights on/off ■ Rear Turns ...

    Cup holders
    Front Rear (if equipped) Pull the armrest down. WARNING ■Items unsuitable for the cup holder Do not place anything other than cups or beverage cans in the cup holders. Other items may be thrown out of the holders in the event of an accident or sudden braking and cause injury. If possible, cover ...

    Ecm (1zz–fe)
    Replacement 1. Disconnect battery negative terminal 2. Remove glove compartment door assy 3. Remove ecm Remove the 2 clips using a clip remover. Then, open the cover. Disconnect the 4 ecm connectors.  remove the wire harness from the wire harness clamp. Remove the 2 ...