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Home >> Infiniti >> 1999 >> Q45 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Closed Throttle Position Switch (CTPS)
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Closed Throttle Position Switch (CTPS)

CTPS is an integral part of the TP sensor. Switch is closed at idle and open during off-idle throttle position. Switch is used to inform the PCM when the throttle is closed for fuel-cut on deceleration. Switch also has a full throttle position used only on vehicles equipped with a Transmission Control Module (TCM).

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