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Home >> Infiniti >> 2001 >> Q45 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Secondary Throttle Position (TP) Sensor (Q45)
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Secondary Throttle Position (TP) Sensor (Q45)

Secondary TP sensor is a potentiometer that responds to movement of throttle motor and sends an input voltage to Throttle Actuator Control (TAC) module. During Traction Control System (TCS) operation, TAC module sends this signal to ECM (replacing TP sensor signal), where it is used for engine control.

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