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Home >> Mazda >> 2021 >> 3 Turbo, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN Y) >> Boost Air Temperature Sensor Inspection >> Function inspection
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Function inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PCM PID [BOOST_AIR_TEMP] and [BOOST_AIR_TEMP_VOLT]. (See PID/DATA MONITOR INSPECTION .) (See PID/DATA MONITOR TABLE [PCM (VIN Y)] .)
  4. Compare the voltage and temperature indications for the PIDs [BOOST_AIR_TEMP_VOLT] and [BOOST_AIR_TEMP] with the standard in the table indicated below.
STANDARD VOLTAGE SPECIFICATION

PID [BOOST_AIR_TEMP_VOLT] PID [BOOST_AIR_TEMP]
V °C {°F}
Approx. 3.57 20 {68}
Approx. 2.70 40 {104}
Approx. 1.87 60 {140}