DTC P0106: Manifold Absolute Pressure (MAP) Sensor Vacuum Connection Problem: General Description

The manifold absolute pressure (MAP) sensor senses manifold absolute pressure (vacuum) and converts it into electrical signals. The MAP sensor outputs low signal voltage at high-vacuum (throttle valve closed) and high signal voltage at low-vacuum (throttle valve wide open).

The engine control module (ECM) compares a predetermined MAP value at a given throttle position and manifold absolute pressure with the output voltage value of the MAP sensor. If the difference between the value from the MAP sensor before start-up (right after turning the ignition switch ON) and the current value is still a set value or less while the engine is running, the ECM detects a malfunction and a DTC is stored.