Throttle Position Sensor

Disconnect negative battery cable and Throttle Position (TP) sensor harness connector. See Fig 1 or Fig 2 . Using an ohmmeter, check resistance between indicated terminals. See THROTTLE POSITION SENSOR RESISTANCE table. If resistance is not as specified, replace TP sensor.

Fig 1: Identifying Throttle Position Sensor Terminals (Grand Vitara & XL-7)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying Throttle Position Sensor Terminals (Vitara)

Courtesy of SUZUKI OF AMERICA CORP.

THROTTLE POSITION SENSOR RESISTANCE

Application

Ohms ⁽¹⁾

Aerio

⁽²⁾

Grand Vitara, Vitara & XL-7

Between Terminals No. 1 & 3

4000-6000

Between Terminals No. 1 & 2 (Vitara & XL-7)

At Idle

At Wide Open Throttle

6000

Between Terminals No. 2 & 3 (Grand Vitara)

At Idle

At Wide Open Throttle

4600

⁽¹⁾	Resistance should vary according to throttle opening.

⁽²⁾	Information not available from manufacurer.

On Grand Vitara, if resistance is not as specified, adjust TP sensor. See THROTTLE POSITION SENSOR in ON-VEHICLE ADJUSTMENTS article. If resistance is not as specified after adjustment, replace TP sensor. For further diagnostic procedures, see appropriate SELF-DIAGNOSTICS article.