DTC P0780; Gear Shifting Malfunction: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DTC P0780:00 |
Gear shifting malfunction |
| DETECTION CONDITION |
- Gear ratio malfunction while in any gear 1st to 6th or clutch-slip DTC (P0729:00, P0731:00, P0732:00, P0733:00, P0734:00, P0735:00, P1728:00) occurs and vehicle is driven under gear ratio malfunction condition from fail-safe, or use of gear speeds in which clutch slip occurs is restricted.
- Determined that vehicle may be in danger due to clutch not engaging by TCM direction according to signal from the oil pressure switch.
|
| FAIL-SAFE FUNCTION |
- Inhibits learning control.
- Inhibits manual mode.
- Inhibits neutral idle control.
- Inhibits AAS.
|
| POSSIBLE CAUSE |
- ATF is less than specified value
- On/off solenoid malfunction
- Pressure control solenoid malfunction
- Shift solenoid malfunction
- Oil pressure switch circuit malfunction
- Oil pressure switch malfunction
- Clutch slippage
- ATF leakage from clutch circuit
- Control valve body malfunction
|
| SYSTEM WIRING DIAGRAM |
Not applicable |