DTC P0734: Gear 4 Incorrect (Incorrect Gear Ratio Detected)

WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Detection Condition & Possible Cause - DTC P0734

Courtesy of MAZDA MOTORS CORP.

Fig 2: Diagnostic Procedure - DTC P0734 (1 Of 2)

Courtesy of MAZDA MOTORS CORP.

Fig 3: Diagnostic Procedure - DTC P0734 (2 Of 2)

Courtesy of MAZDA MOTORS CORP.