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 P2178: Diagnostic Procedure Chart (Steps 1 & 2)

Courtesy of MAZDA MOTORS CORP.

Fig 2: DTC P2178: Diagnostic Procedure Chart (Steps 3-12)

Courtesy of MAZDA MOTORS CORP.

Fig 3: DTC P2178: Diagnostic Procedure Chart (Steps 13-17)

Courtesy of MAZDA MOTORS CORP.