Throttle Switch (Idle Switch Contact) Check

1. With ignition Off, disconnect multiple pin plug from ECU.
2. Connect suitable ohmmeter across ECU connector terminals 4 and 12.
3. With throttle closed, resistance value should be 0 ohms.
4. With throttle opened, resistance value should be infinite. Switch over from throttle closed to throttle open should take place with a throttle gap of approximately 1°.