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Home >> Subaru >> 1993 >> Justy Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Sensor Range Charts >> Engine Controls - Sensor Operating Range Charts >> Sensor Operating Range Charts >> Throttle Position (TP) Sensor Or Switch
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Throttle Position (TP) Sensor Or Switch

THROTTLE POSITION (TP) SENSOR RESISTANCE

Application (1) (2) TP Connector Terminals Ohms
Total Resistance
Legacy Black Wire & Red Wire 12,000
Loyale Black Wire & Red Wire 3500-6500
SVX Black Wire & Red Wire 5000
Variable Resistance
Legacy
Throttle Closed Black Wire & White Wire 1000
Throttle Open Black Wire & White Wire 4300
Loyale
Throttle Closed Black Wire & Green Wire 1000 Or Less
Throttle Open Black Wire & Red Wire 2400 Or More
SVX
Throttle Closed Black Wire & White Wire 10,000-12,000
Throttle Open Black Wire & White Wire 3000-5000
(1) Justy is not equipped with TP sensor.
(2) Unplug TP sensor connector. At component side of connector, connect ohmmeter between the indicated terminals.
THROTTLE POSITION (TP) SENSOR VOLTAGE (IMPREZA) (1)

Terminal Volts
Throttle Closed
No. 15 (Brown Wire) 4.4-5.5
No. 4 (Light Green White) 0.4-0.5
No. 11 (Red/Green Wire) Zero
Throttle Open
No. 15 (Brown Wire) 4.4-5.5
No. 4 (Light Green White) 3.5-4.3
No. 11 (Red/Green Wire) Zero
(1) Backprobe between specified terminal of 22-pin ECM connector and ground.
THROTTLE SWITCH (IDLE SWITCH) CONTINUITY

Application (1) Terminals
Justy (2) Blue/White Wire & Black/Red Wire
Legacy Brown Wire & Black Wire
Loyale Light Green Wire & Black Wire
(1) Unplug TP sensor connector. Check for continuity between specified terminals of connector. There should be continuity with throttle closed, and no continuity with throttle open.
(2) In addition to idle switch function, throttle switch also incorporates wide open throttle switch function. To test wide open throttle switch function, check continuity between Green/Red wire and Black/Red wire terminals of throttle switch connector. There should be continuity with throttle fully open (at least 50 degrees), and no continuity with throttle closed.
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