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Toyota TPMS. TPMS or a Tire Pressure Monitoring System is fitted to Toyota cars to provide a warning of low pressure on any one of four or five tires on the vehicle (five if TPMS fitted in spare). A TPMS from one of two manufacturers is fitted as part of the valve assembly in all Toyota cars according to the table shown below.
MAP sensors are called manifold absolute pressure sensors rather than intake vacuum sensors because they measure the pressure (or lack thereof) inside the intake manifold.When the engine is not running, the pressure inside the intake manifold is the same as the outside barometric pressure.ut the MAP sensor doesn't care because it just monitors the absolute pressure inside the intake manifold. On engines with a speed-density electronic fuel injection system, airflow is estimated rather than measured directly with an airflow sensor.