P0729 Mitsubishi Code - Automatic Transmission 6th Gear Incorrect Ratio
Quick Answer
This malfunction is detected when the A/T does not shift into 6GR position as instructed by TCM. Common causes include Low transmission fluid level, Shift solenoid mechanical fault, Hydraulic circuit fault. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0729 Mitsubishi indicates Automatic Transmission 6th Gear Incorrect Ratio.
- Common causes
- Common causes include Low transmission fluid level, Shift solenoid mechanical fault, Hydraulic circuit fault.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0729 Mitsubishi Description
What are the Possible Causes of the DTC P0729 Mitsubishi?
- Low transmission fluid level
- Shift solenoid mechanical fault
- Hydraulic circuit fault
- Transmission failure
How to Fix the DTC P0729 Mitsubishi?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0729 Mitsubishi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0729 Mitsubishi code?
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Frequently Asked Questions about P0729 Mitsubishi Code
What does OBD-II code P0729 mean in a Mitsubishi?
Code P0729 indicates that the transmission’s 6th gear is not maintaining the correct gear ratio, which could be caused by mechanical or electrical issues.
What are the symptoms of code P0729 in a Mitsubishi?
Symptoms may include erratic shifting, slipping in 6th gear, reduced fuel efficiency, and illumination of the check engine light.
Can driving with code P0729 damage my car?
Yes, driving with this code can lead to further transmission damage and reduced performance, potentially increasing repair costs over time.
What causes code P0729 in a Mitsubishi?
Common causes include faulty shift solenoids, worn clutch components, transmission fluid issues, or problems with the transmission control module (TCM).
How can I diagnose code P0729 in a Mitsubishi?
Diagnosis typically involves scanning for stored codes, inspecting transmission fluid, testing shift solenoids, and verifying the functionality of the TCM.
How do I fix code P0729 on my Mitsubishi?
Repairs may include replacing damaged solenoids, refilling or flushing transmission fluid, repairing the TCM, or addressing internal transmission wear.
Can low transmission fluid cause code P0729?
Yes, low or degraded transmission fluid can lead to incorrect gear ratios and trigger this code.
What tools are needed to fix code P0729?
You may need an OBD-II scanner, multimeter, transmission fluid tools, and possibly specialty transmission repair equipment.
Is code P0729 specific to Mitsubishi vehicles?
No, P0729 can appear in various vehicles with automatic transmissions, but specific diagnostic and repair steps may vary by make and model.
Should I take my Mitsubishi to a mechanic for code P0729?
If you're unsure about diagnosing or repairing transmission issues, it’s best to consult a qualified mechanic to prevent further damage.
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