DTC Detection Logic
WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
| DTC |
Trouble diagnosis name |
DTC is detected if... |
Possible cause |
| P0731 |
Gear 1 Incorrect Ratio |
The gear ratio is:
- 5.180 or more
- 4.594 or less
|
- Input clutch solenoid valve
- Direct clutch solenoid valve
- High and low reverse clutch solenoid valve
- Front brake solenoid valve
- Low brake solenoid valve
- 2346 brake solenoid valve
- Anti-interlock solenoid valve
- Each clutch and brake
- Output speed sensor
- Input speed sensor 1, 2
- Hydraulic control circuit
|