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Home >> Lexus >> 2014 >> CT 200h Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010 - P0172)) >> SFI System >> DTC P0106: Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem [12/2013 - ] >> Description
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DTC P0106: Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem [12/2013 - ]: Description

The manifold absolute pressure sensor detects pressure inside the intake manifold as an absolute pressure with a built-in sensor and outputs a voltage. Based on the voltage from the manifold absolute pressure sensor, the ECM controls the air fuel ratio, and detects errors in the pressure sensor using the changes in pressure.

Fig 1: Manifold Absolute Pressure VS Voltage Graph
GTY319518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC No. DTC Detection Condition Trouble Area
P0106 Intake manifold pressure measured after engine start drops by less than 3 kPa (22.5 mmHg) compared to the intake manifold pressure (atmospheric pressure) measured before engine start (2 trip detection logic).
  • Intake system
  • Manifold absolute pressure sensor