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Hyundai Azera: Barometric Pressure Sensor (BPS) Description and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Azera 2011-2025 Service ManualHyundai Azera: Barometric Pressure Sensor (BPS) Description and Operation

Description
Barometric Pressure Sensor (BPS) is a speed-density type sensor and is installed on the air cleaner assemby. It senses absolute pressure of the air cleaner assemby 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 BPS 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. Throttle ...

Barometric Pressure Sensor (BPS) Specifications
Specification Pressure [kPa (kgf/cm?, psi)]Output Voltage (V)10.0 (0.01, 0.15)0.5055.0 (0.56, 7.98)2.21100.0 (1.01, 14.5)3.93115.0 (1.17, 16.9)4.50 ...

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Limitation of Active ECO operation:
If the following conditions occur while Active ECO is operating, the system operation is limited even though there is no change in the ECO indicator. When the coolant temperature is low: The syst ...

Rain Sensor Repair procedures
Inspection Rain Sensing Wiper 1. In IGN2 ON state, if auto switch input (LIN communication) is ON then both wiper low relay and wiper high relay outputs are controlled by the rain sensor inpu ...

Body Control Module (BCM) Schematic Diagrams
BCM Connector Terminals BCM(IPM) Input Signal SPEC Signal NameOn/Off JudgmentInput  CharacteristicsInput acquisition VBAT Threshold VoltageL_DRLOpt(NA)On : 3.2V UnderOff : 4.2V OverPull up(ON ...

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