DTC P0105 - Manifold Absolute Pressure (Map) Sensor Circuit Malfunction: Condition

WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when input voltage from MAP sensor is less than .16 volt or greater than 4.9 volts with ignition on. Possible causes are:

MAP sensor malfunction.
Open or short circuit between terminal No. 3U on Engine Control Module (ECM) and terminal "B" on MAP sensor.
Open or short circuit between terminal No. 3A on Engine Control Module (ECM) and terminal "C" on MAP sensor.
Open or short circuit between terminal No. 3AB on Engine Control Module (ECM) and terminal "A" on MAP sensor.