P0733 Mitsubishi Code - Gear 3 Incorrect Ratio
Quick Answer
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows: Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from Engine Control Module (ECM) C: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (3rd) supposed by TCM, the slip ratio will be more than normal. Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids. 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
- P0733 Mitsubishi indicates Gear 3 Incorrect Ratio.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids.
- 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 P0733 Mitsubishi Description
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (3rd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
What are the Possible Causes of the DTC P0733 Mitsubishi?
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
How to Fix the DTC P0733 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0733 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.
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Frequently Asked Questions about P0733 Mitsubishi Code
1. What does the OBDII code P0733 mean on a Mitsubishi?
P0733 indicates that the transmission control module (TCM) has detected an incorrect gear ratio for third gear, suggesting a potential issue with the transmission or related components.
2. What are the common symptoms of the P0733 code in a Mitsubishi?
Symptoms may include poor acceleration, slipping in third gear, erratic shifting, reduced fuel efficiency, or the transmission failing to engage third gear altogether. The check engine light will also be illuminated.
3. What causes the P0733 code in a Mitsubishi?
Common causes include low or dirty transmission fluid, a malfunctioning solenoid, a worn or damaged clutch pack, internal transmission damage, or electrical issues such as damaged wiring or connectors.
4. Can low transmission fluid trigger the P0733 code?
Yes, low or contaminated transmission fluid can cause improper hydraulic pressure, leading to an incorrect gear ratio in third gear and triggering the P0733 code.
5. How do you diagnose the P0733 code in a Mitsubishi?
Diagnosis involves checking the transmission fluid level and condition, inspecting wiring and connectors, testing the shift solenoids, and possibly performing a pressure test or inspecting internal transmission components.
6. Can driving with the P0733 code damage the transmission?
Yes, continuing to drive with this code can lead to further transmission damage, especially if the issue involves internal components or low transmission fluid.
7. How is the P0733 code typically fixed in a Mitsubishi?
Repairs may include replacing or repairing the shift solenoid, flushing and refilling the transmission fluid, repairing wiring issues, or rebuilding/replacing the transmission if internal damage is found.
8. How much does it cost to fix the P0733 code?
Repair costs vary widely depending on the cause. A simple fluid change might cost $100 to $200, while transmission repairs or replacements could range from $1,000 to $3,500 or more.
9. Can a faulty shift solenoid cause the P0733 code?
Yes, a malfunctioning shift solenoid can prevent proper gear engagement, leading to an incorrect gear ratio and triggering the P0733 code.
10. Is it safe to drive a Mitsubishi with the P0733 code?
It is not recommended to drive with this code, as it can cause further transmission damage or lead to unsafe driving conditions due to erratic shifting or gear slippage.
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