P0729
Automatic Transmission 6th Gear Incorrect Ratio
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0729 means
- The fault code P0729 indicates that the transmission is operating in an improper gear ratio on the 6th gear. This may cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Hesitation or jerking during acceleration
- Delayed or erratic shifting
- Inability to shift into or out of the 6th gear
Possible causes
- Malfunctioning shift solenoids
- Failed transmission control module (TCM)
- Low transmission fluid levels
- Damaged or worn out clutch components
Related parts
- Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears
Possible solutions
- Replace malfunctioning shift solenoids
- Replace the transmission control module (TCM) if necessary
- Check and add transmission fluid as needed
- Repair or replace damaged or worn out clutch components
Free on OBD DashX
P0729 on OBD DashX
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