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Home >> Land Rover >> 2018 >> Range Rover Velar Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Electronic Engine Controls - TDV6 3.0L Diesel -- Range Rover Velar/L560) >> Electronic Engine Controls - TDV6 3.0L Diesel >> Description And Operation >> Electronic Engine Controls - TDV6 3.0L Diesel (G2006315) >> Description >> Manifold Absolute Pressure Sensor

Manifold Absolute Pressure Sensor

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G11699186Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

The Manifold Absolute Pressure (MAP) sensor is installed in the outlet of the electric throttle, to measure the pressure of the air entering the intake manifolds. The sensor is a semi-conductor type sensor which responds to pressure acting on a membrane within the sensor, altering the output voltage.

The sensor receives a 5V reference voltage and a ground from the Powertrain Control Module (PCM) and returns a signal of between 0.5 - 4.5V to the PCM. A Low Pressure (LP) returns a low voltage signal to the PCM and a High Pressure (HP) returns a high voltage. The signal is used in conjunction with the Mass Air Flow and Temperature (MAFT) sensor signals to calculate the injection period.

For additional information, refer to: INTAKE AIR DISTRIBUTION AND FILTERING

The PCM monitors the engine MAP sensor for faults and can store fault related codes. If the sensor fails, the PCM uses the MAFT sensor signal as a substitute.

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