With GST
- Start engine and warm it up to normal operating temperature.
- Check that voltage between ECM terminal 107 (Fuel tank temperature sensor signal) and ground is less than 4.2V.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start engine and wait at least 20 seconds.
- Select Service $07 with GST.
If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE