Throttle Position Sensor (TPS)

Disconnect negative battery cable and TPS connector. See Fig 1 , Figure or Figure . 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 this section. If resistance is not as specified after adjustment, replace TPS. For further diagnostic procedures, see TESTS W/CODES article in this section.

THROTTLE POSITION SENSOR (TPS) RESISTANCE

Application

Ohms

Between Terminals "A" & "B"

At Idle ⁽¹⁾

0-500

At Wide Open Throttle

Infinity

Between Terminals "A" & "D"

3500-6500

Between terminals "A" & "C"

At Idle ⁽¹⁾

300-2000

At Wide Open Throttle ⁽²⁾

2000-6500

⁽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

Courtesy of SUZUKI OF AMERICA CORP.