P0731
Gear 1 Incorrect Ratio
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0731 means
- The fault code P0731 indicates that there is an issue with the first gear ratio. This may cause the transmission to shift poorly or not engage in first gear at all.
Possible symptoms
- Transmission slipping or shifting poorly
- Slow or delayed engagement in first gear
- Harsh engagement or shifting in first gear
- Illuminated check engine light
Possible causes
- Incorrect adjustment of shift cables
- Damaged or worn out transmission components such as gears, bearings or synchros
- Faulty transmission control module (TCM)
- Low transmission fluid or contaminated fluid
Related parts
- Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears
Possible solutions
- Adjust the shift cables
- Replace any damaged or worn out transmission components
- Replace the transmission control module (TCM) if necessary
- Check and replace the transmission fluid if required
Free on OBD DashX
P0731 on OBD DashX
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