Throttle Position Sensor (TPS)

Disconnect negative battery cable and TPS connector. See Fig 1 or Fig 2. Using ohmmeter, check resistance between indicated terminals. See THROTTLE POSITION SENSOR (TPS) RESISTANCE table. If resistance is not as specified, adjust TPS.
See ADJUSTMENTS article in the ENGINE PERFORMANCE Section. If resistance is not as specified after adjustment, replace TPS. For further diagnostic procedures, see TESTS W/CODES article in the ENGINE PERFORMANCE Section.

THROTTLE POSITION SENSOR (TPS) RESISTANCE ⁽¹⁾⁽²⁾

Application

Ohms

DOHC

Between Terminals "C" & "D"

With .012" (.30 mm) Clearance At Stop Screw

0-500

With .035" (.89 mm) Clearance At Stop Screw

Infinity

Between Terminals "C" & "A"

3500-6500

Between Terminals "C" & "B"

At Idle

0-2000

At Wide Open Throttle

3500-6500

SOHC

Between Terminals "A" & "B"

With .012" (.30 mm) Clearance At Stop Screw

0-5000

With .035" (.89 mm) Clearance At Stop Screw

Infinity

Between Terminals "A" & "D"

4370-8130

Between Terminals "A" & "C"

At Idle

240-1140

At Wide Open Throttle

3170-6600

⁽¹⁾	To obtain idle position, apply 19 in. Hg to throttle opener.

⁽²⁾	There should be more than 2000 ohms difference between idle and wide open throttle readings.

Fig 1: Throttle Position Sensor Connector Terminal ID (DOHC)

Courtesy of SUZUKI OF AMERICA CORP.

Fig 2: Throttle Position Sensor Connector Terminal ID (SOHC)

Courtesy of SUZUKI OF AMERICA CORP.