DTC P0731: Notes
DTC P0731 [AW6A-EL, AW6AX-EL] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0731 |
Gear 1 Incorrect (Incorrect gear ratio detected) |
| DETECTION CONDITION |
- Incorrect gear ratio detected when following conditions are satisfied while driving:
Monitoring condition:
- ATF temperature 20°C {68°F} or more
- Driving in 1GR in D range
- Engine running
- Accelerator opening angle 10% or more
- Vehicle speed signal normal
Diagnostic support note:
- This is a continuous monitor (CCM).
- The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
- A PENDING CODE is not available.
- FREEZE FRAME DATA is available.
- The AT warning light illuminates.
- The DTC is stored in the TCM memory.
|
| POSSIBLE CAUSE |
- ATF level low
- Deteriorated ATF
- Shift solenoid D stuck
- Shift solenoid E stuck
- Shift solenoid F stuck
- Line pressure control solenoid stuck
- Line pressure low
- C1 clutch slipping
- One-way clutch slipping
- Control valve stuck
- Oil pump malfunction
- TCM malfunction
|