Hyundai Sonata: Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation

Description

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 voltage of TPS 1 and 2 at C.T. and W.O.T. Specific ...

Manifold Absolute Pressure Sensor (MAPS) Specifications

Specification Pressure[kPa (kgf/cm?, psi)]Output Voltage (V)32.5 (0.33, 4.71)0.5284 (2.90, 41.19)4.5 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Schematic Diagrams
System Block Diagram Component Parts And Function Outline Component partFunctionVehicle-speed sensor, ESP/ABS Control ModuleConverts vehicle speed to pulse.ECMReceives signals from sensor and control switches.Cruise control indicatorIlluminate when CRUISE main switch is ON (Built into cluster)Cr ...

Hyundai Sonata LF 2014-2019 Owners Manual: Resetting the sunroof
Sunroof needs to be reset if the following occurs : - Battery is discharged or disconnected or the related fuse has been replaced or disconnected - The one-touch sliding function of the sunroof does not normally operate Reset procedure : 1. Place the ignition switch to the ON position or start the ...