Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC P0140: Diagnostic Procedure Chart (Steps 1 & 2)

Courtesy of MAZDA MOTORS CORP.

Fig 2: DTC P0140: Diagnostic Procedure Chart (Steps 3-9)

Courtesy of MAZDA MOTORS CORP.

Fig 3: DTC P0140: Diagnostic Procedure Chart (Steps 10 & 11)

Courtesy of MAZDA MOTORS CORP.