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.

ETC (Electronic Throttle Control) System. Repair procedures

Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output v ...

Manifold Absolute Pressure Sensor (MAPS). Specifications

Specification Pressure [kPa (kgf/cm², psi)] Output Voltage (V) 20.0 (0.20, 2.9) 0.79 46.7 (0.47, 6.77) 1.84 ...

See also:

To resume cruising speed at more than approximately 25 mph (40 km/h)
If any method other than the cruise ON/OFF switch was used to cancel cruising speed and the system is still activated, the most recent set speed will automatically resume when the RES+ switch ...

Troubleshooting
Troubleshooting Symptom Suspect Area Remedy (Refer to page) Water leaks from sunroof Deteriorated roof lid weatherstrip Rep ...

Battery Sensor. Description and Operation
Description Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power ...