Technical Description (Comment)
WARNING: This page is about a different car, the 2004 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.
The cause is probably a malfunction of the auto-cruise control-ECU power supply circuit or the auto-cruise control-ECU ground circuit.
The cause is probably a malfunction of the stoplight switch circuit.
The cause is probably a malfunction of the clutch pedal position switch circuit.
The cause is probably an open-circuit in the output signal circuit in "N" range.