Hyundai Santa Fe: Engine Control System / 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.

Repair procedures

Inspection Throttle Position Sensor (TPS) 1. Connect the diagnostic tool on the Data Link Connector (DLC). 2...

Manifold Absolute Pressure Sensor (MAPS). Specifications

Specification Pressure (kPa) Output Voltage (V) 20.0 0.79 46.7 1...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Warning messages

To release EPB, fasten seatbelt and close door, hood and liftgate If you try to drive with EPB applied, a warning will sound and a message will appear. If the driver's seat belt is unfastened and the engine hood or liftgate is opened, a warning will sound and a message will appear...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Auto Hold

Auto Hold maintains the vehicle in a standstill even though the brake pedal is not depressed after the driver brings the vehicle to a complete stop by depressing the brake pedal. To apply: 1. With the driver’s door, engine hood and liftgate (vehicle equipped with shift button) closed, then press the AUTO HOLD switch...