P0107

WIRING DIAGRAM

CIRCUIT DESCRIPTION
This sensor senses pressure change in the intake manifold and converts it into voltage change. It consists of a semi-conductor type pressure converting element which converts a pressure change into an electrical change and an integrated circuit which amplifies and corrects the electric change. The ECM sends a 5-volt reference voltage to the pressure sensor. As the manifold pressure changes, the electrical resistance of the sensor also changes. By monitoring the sensor output voltage, ECM knows the manifold pressure (intake air volume). ECM uses the voltage signal from the pressure sensor as one of the signals to control various devices.





DETECTING CONDITION AND POSSIBLE CAUSE

NOTE: When DTC P0107 and P0122 are indicated together, it is possible that "P" circuit is open.

DTC CONFIRMATION PROCEDURE
1. Clear DTC and start engine and keep it at idle for 1 min.
2. Select "DTC" mode on scan tool and check DTC.





INSPECTION

MAP Sensor Individual Check
- Disconnect MAP sensor vacuum hose from filter.
- Disconnect coupler from MAP sensor.
- Remove MAP sensor.





- Arrange 3 new 1.5V batteries in series (check that total voltage is 4.5-5.0V) and connect its positive terminal to "VIN" terminal of sensor and negative terminal to "Ground" terminal. Then check voltage between "Vout" and "Ground". Also, check if voltage reduces when vacuum is applied up to 4OcmHg by using vacuum pump.

Output voltage (VIN voltage 4.5 - 5.0V, ambient temp. 2O - 3O°C, 68 - 86°F)





If check result is not satisfactory, replace MAP sensor.
- Install MAP sensor and connect vacuum hose securely.
- Connect MAP sensor coupler securely.