Throttle Position Sensor (TPS)

NOTE: To identify TPS terminals, see Fig 1 .

THROTTLE POSITION SENSOR (TPS) RESISTANCE

Condition

Resistance (Ohms)

Between Terminals 1 & 4 ⁽¹⁾

12-18

⁽¹⁾	With .016" (.4 mm) feeler gauge installed between throttle stop screw and lever. DVOM connected to TPS terminals No. 1 (Green wire) and No. 4 (Black wire). With throttle valve at idle position, apply about 16-20 in. Hg to throttle opener valve.

Fig 1: Throttle Position Sensor Terminal ID

Courtesy of GENERAL MOTORS CORP.