Parking Brake Switch Inspection

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Remove the upper panel. (See UPPER PANEL REMOVAL .) (See UPPER PANEL INSTALLATION .)
Disconnect the parking brake switch connector.
Verily that the continuity is as indicated in the table.

Fig 1: Inspecting Parking Brake Switch Continuity

Courtesy of MAZDA MOTORS CORP.

If not as indicated in the table, replace the parking brake switch.

Fig 2: Parking Brake Switch Continuity Reference Chart

Courtesy of MAZDA MOTORS CORP.