Terraza FWD V6-3.5L VIN 8 (2005)
Throttle Body: Description and Operation
THROTTLE BODY ASSEMBLY
The throttle assembly contains the following components:
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The throttle blade
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The throttle actuator motor
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The throttle position (TP) sensor 1 and 2
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The throttle actuator control (TAC) module
The throttle body functions similar to a conventional throttle body with the following exceptions:
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There is no longer an idle air control (IAC) motor and associated air passages.
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An electric motor opens and closes the throttle valve.
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The TAC module is located within the throttle body assembly.
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The throttle blade is spring loaded in both directions and the default position is slightly open.
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There are 2 individual TP sensors within the throttle body assembly.
The TP sensors are used to determine the throttle plate angle. The TP sensors provide the powertrain control module (PCM) with a signal voltage
proportional to throttle plate movement. Both TP sensor signal voltages are low at closed throttle and increase as the throttle opens.
