Clutch Switch Circuit: Description
WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Clutch switch circuit inspection is necessary for M/T vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery voltage through the ECU-IG fuse and ignition switch. While the clutch pedal is depressed, the clutch switch assembly sends a signal to terminal D of the ECM. The ECM cancels cruise control when terminal D receives the signal (voltage of below 1 V).