DTC P0729:00 [Aw6A-El]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0729:00	Gear 6 incorrect (incorrect gear ratio detected)
DETECTION CONDITION	Incorrect gear ratio is detected when driving in D range, 6GR, ATF temperature is 20°C {68°F} or more, and accelerator opening angle is 10% or more. Diagnostic support note: The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle. The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle. PENDING CODE is not available. FREEZE FRAME DATA is available. The DTC is stored in the TCM memory.
POSSIBLE CAUSE	Deteriorated ATF ATF level low Line pressure malfunction Oil pump malfunction Control valve stuck Stall speed malfunction B1 brake slipping C2 clutch slipping Solenoid valve malfunction Line pressure control solenoid stuck Shift solenoid C stuck Shift solenoid E stuck TCM malfunction

DTC P0729:00

Gear 6 incorrect (incorrect gear ratio detected)

DETECTION CONDITION

Incorrect gear ratio is detected when driving in D range, 6GR, ATF temperature is 20°C {68°F} or more, and accelerator opening angle is 10% or more.

Diagnostic support note:

The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
PENDING CODE is not available.
FREEZE FRAME DATA is available.
The DTC is stored in the TCM memory.

POSSIBLE CAUSE

Deteriorated ATF
ATF level low
Line pressure malfunction
- Oil pump malfunction
- Control valve stuck
Stall speed malfunction
- B1 brake slipping
- C2 clutch slipping
Solenoid valve malfunction
- Line pressure control solenoid stuck
- Shift solenoid C stuck
- Shift solenoid E stuck
TCM malfunction