Barometric Pressure (BARO) Sensor Inspection

WARNING: This page is about a different car, the 2007 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flow diagram. (See TROUBLESHOOTING PROCEDURE .)

Connect the M-MDS or equivalent to the DLC-2.

Fig 1: Locating DLC-2 Connector

Courtesy of MAZDA MOTORS CORP.

Turn the ignition switch to the ON position.
Select BARO PID on the M-MDS or equivalent.
Verify that the BARO PID (pressure) and barometric pressure are practically equal.
- If not as verified, replace the PCM. (See PCM REMOVAL/INSTALLATION .)