Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1996 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Throttle Position (TP) Sensor
NOTE:
Vehicles with Traction Control System (TRAC) are equipped with a main TP sensor and a sub-TP sensor. The following table applies to main TP sensor. For sub-TP sensor table, see SUB-THROTTLE POSITION (SUB-TP) SENSOR
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TP SENSOR RESISTANCE
| Application & Throttle Plate Position (1) | TP Sensor (2) Terminals | Ohm Reading | ||||||
|---|---|---|---|---|---|---|---|---|
| Throttle Fully Closed | VTA1 & E2 | 340-6300 | ||||||
| .016" (.40 mm) (3) | IDL1 & E2 | 500 Or Less | ||||||
| .026" (.65 mm) (3) | IDL1 & E2 | Infinite (Open) | ||||||
| Throttle Fully Open | VTA1 & E2 | 2400-11,200 | ||||||
| All Positions | VC & E2 | 3100-7200 | ||||||
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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