Hyundai Venue (QX): Manifold Absolute Pressure Sensor (MAPS) / Description and operation
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and
is installed on the surge tank. It senses absolute pressure of the surge tank
and transfers the analog signal proportional to the pressure to the ECM. By
using this signal, the ECM calculates the intake air quantity and engine speed.
The MAPS consists of a piezo-electric element and a hybrid IC amplifying the
element output signal. The element is silicon diaphragm type and adapts pressure
sensitive variable resistor effect of semi-conductor. Because 100% vacuum and
the manifold pressure apply to both sides of the sensor respectively, this sensor
can output analog signal by using the silicon variation proportional to pressure
change.

Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V)
20.0 (0.20, 2.9)
0.
Other information:
Inspection
1.
Check the resistance of the ambient temperature sensor between terminals
1 and 2 whether it changes by changing the ambient temperature.
1. Ambient Sensor (+)
2.
Description
The cruise control system is engaged by the cruise "ON/OFF" main switch located
on right of steering wheel column. The system has the capability to cruise,
coast, accelerate and resume speed.
It also has a safety interrupt, engaged upon depressing brake or shifting select
lever.