DTC P0107: Manifold Absolute Pressure / Barometric Pressure Circuit Low Input; DTC P0108: Manifold Absolute Pressure / Barometric Pressure Circuit High Input: 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 vacuum sensor, the ECM controls the air fuel ratio and corrects any errors in the pressure sensor due to changes in pressure.

Fig 1: Identifying Output Voltage To Manifold Absolute Pressure Graph

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DTC No.	DTC Detecting Condition	Trouble Area
P0107	The output voltage from the manifold absolute pressure sensor less than 0.5 V for 0.5 seconds. (1 trip detection logic)	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM
P0108	The output voltage from the manifold absolute pressure sensor more than 4.5 V for 0.5 seconds. (1 trip detection logic)	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM

HINT:

DTC P0107 and P0108 are detected when the power switch is on (IG) for approximately 5 seconds.
When DTC P0107 or P0108 is detected, check the manifold absolute pressure by selecting Powertrain / Engine and ECT / Data List / MAP on the Techstream.

Manifold Absolute Pressure (kPa)	Malfunction
Approximately 0	PIM circuit short
130 or more	VC circuit open or short PIM circuit open E2 circuit open ECM