With GST

Start engine and warm it up to normal operating temperature.

Fig 1: Checking Voltage Between ECM Terminal 107 And Ground
Courtesy of SUZUKI OF AMERICA CORP.
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.
Check 1st trip DTC.
If 1st trip DTC is detected, go to [P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR ].