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Home >> Suzuki >> 2001 >> Swift GL, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Range/Performance Problem >> DTC Confirmation Test
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DTC Confirmation Test

Turn ignition off, connect scan tool and turn ignition on. Clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Ensure fuel tank is at least 1/4 full, vehicle is at an altitude of 8000 feet or below, barometric pressure is 75 kPa or more, ambient temperature is 14°F (-10°C) or more, intake air temperature is 158°F (70°C) or less and engine coolant temperature is 158-230°F (70-110°C). Drive vehicle at speeds of about 30-40 MPH in 3rd gear (M/T) or Drive (A/T) for one minute. Stop vehicle. Check for DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM.