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Z50 New Model Introduction
January 2006
B – ENGINE CONTROL SYSTEM
VQ35DE Inputs to ECM
9. Throttle (valve) Position Sensor (TPS)
The TPS responds to the throttle valve movement. It
has two sensors. These sensors are potentiometers
which transform the throttle valve position into an
output voltage and send the voltage signal to the
ECM.
The TPS detect’s the opening and closing speed of
the throttle valve as well as the throttle valve position
and sends the voltage signals to the ECM.
The ECM judges the current opening angle of the
throttle valve from these signals and controls the
throttle control motor to set the throttle valve
opening angle response to the requested driving
condition. (Determined from the Accelerator Pedal
Position Sensor - APPS).
10. Vehicle Speed Signal
The ECM receives vehicle speed sensor signal via
CAN communication line. Even though it is sent from
the Unified Meter & A/C Amp, the source of the signal
originates from the ABS / VDC system wheel speed
sensors.
The ECM primarily uses this signal for ASCD control
(Cruise Control).
11. Stop Lamp Switch
The stop lamp switch is installed to the brake pedal
bracket. The switch senses brake pedal position and
sends an ON-OFF signal to the ECM.
This signal is used mainly to decrease the engine
speed when the vehicle is driving (moving).
It is found on the Brake Pedal bracket, adjacent to the
ASCD Brake Switch.
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