General Information

P2229 Barometric Pressure Circuit High Input

General Information

Component Location





General Description

The Barometric Pressure Sensor (BPS) is located between the air cleaner assembly and the throttle body. It detects the atmospheric pressure at the vehicle's current location. The barometric pressure sensor calculates the density of air (quantity of oxygen) and accurately detects the intake air amount along with intake air temperature sensor. This does an important role in compensating the amount of fuel when driving in hillsides areas where difference in air density (oxygen) exists.

DTC Description

Checking output signals of BPS every 5 sec. under detecting condition, if an output signal is above 4.5 V for more than 2.5 sec., PCM sets P2229.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig 1) Normal data & waveform of BPS at approx. 1 atm condition.