With GST
- Start engine and warm it up to normal operating temperature.
- Check that voltage between ECM terminal 60 (Fuel tank temperature sensor signal) and ground is less than 4.2V.
- Turn ignition switch OFF and wait at least 5 seconds.
- Start engine and wait at least 20 seconds.
- Select "MODE 7" with GST.
- If 1st trip DTC is detected, go to , "DIAGNOSTIC PROCEDURE ".