P1103 – MAP Sensor High Voltage

 

P1103: DIY Repairing Video Tutorial

https://youtu.be/6FNUkJj_zvM

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P1103 Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P1103 Possible Causes

  Faulty Manifold Absolute Pressure (MAP),Manifold Absolute Pressure (MAP) harness is open or shorted,Manifold Absolute Pressure (MAP) circuit poor electrical connection,Faulty Engine Control Module (ECM)  

P1103 Description

  The Manifold Absolute Pressure (MAP) sensor provides instantaneous manifold pressure information to the engine’s Engine Control Module (ECM). The data is used to calculate air density and determine the engine’s air mass flow rate, which in turn determines the required fuel metering for optimum combustion. A fuel-injected engine may alternately use a Mass Air Flow (MAF) sensor to detect the intake airflow. A typical configuration employs one or the other, but seldom both.The MAP/BARO Switch solenoid valve switches it’s air flow passage according to the voltage signal sent from the ECM.