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Section 177 (On-Board Diagnostic [Engine Control System L3))
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DTC P2004: Variable Tumble Control System (VTCS) Shutter Valve Stuck Open
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Diagnostic procedure
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Diagnostic procedure
WARNING:
This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P2004 - Diagnostic Procedure (Steps 1-6)
Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P2004 - Diagnostic Procedure (Steps 7-10)
Courtesy of MAZDA MOTORS CORP.