P1744 Code - Torque Converter Clutch System Stuck in Off Position
Quick Answer
The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve. 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
- P1744 indicates Torque Converter Clutch System Stuck in Off Position.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve.
- 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 P1744 Description
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
What are the Possible Causes of the DTC P1744?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Transmission internal mechanical problem
How to Fix the DTC P1744?
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 P1744 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 P1744 code?
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Need Help with the Code?
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Information for Specific Makes
- P1744 Ford — Torque Converter Clutch System Stuck in Off Position
- P1744 Hyundai — Lock Up Clutch System
- P1744 Lincoln — Torque Converter Clutch System Stuck in Off Position
- P1744 Mazda — Torque Converter Clutch System Stuck in Off Position
- P1744 Mercury — Torque Converter Clutch System Stuck in Off Position
Frequently Asked Questions about P1744 Code
1. What are the common symptoms of OBDII code P1744 (Torque Converter Clutch System Stuck in Off Position)?
- Common symptoms include engine stalling at idle, poor fuel economy, harsh shifting, and difficulty accelerating.
2. What are the possible causes of OBDII code P1744?
- The code P1744 can be triggered by issues such as a faulty torque converter clutch solenoid, low transmission fluid levels, or a damaged torque converter.
3. How serious is OBDII code P1744?
- While the vehicle may still be drivable with this code, it can lead to decreased fuel efficiency and potential damage to the transmission over time if left unresolved.
4. Can I continue driving my vehicle with OBDII code P1744?
- It is not recommended to continue driving with this code present, as it can cause further damage to the transmission and reduce the overall performance of the vehicle.
5. How is OBDII code P1744 diagnosed?
- Diagnosis typically involves using a scan tool to retrieve the code, conducting a visual inspection of the transmission components, and testing the torque converter clutch solenoid.
6. How can I repair OBDII code P1744?
- Repair options may include replacing the torque converter clutch solenoid, checking and replenishing transmission fluid, or repairing any damaged components in the torque converter system.
7. Can I reset OBDII code P1744 by disconnecting the battery?
- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution. Proper diagnosis and repair of the underlying issue are necessary to prevent the code from reoccurring.
8. How much does it typically cost to repair OBDII code P1744?
- The cost of repair can vary depending on the specific cause of the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.
9. Will OBDII code P1744 cause my vehicle to fail an emissions test?
- Yes, having this code present can cause your vehicle to fail an emissions test, as it indicates a problem with the torque converter clutch system that affects emissions control.
10. How can I prevent OBDII code P1744 from occurring in the future?
- To prevent the recurrence of this code, it is important to maintain regular transmission fluid changes, address any transmission issues promptly, and have the vehicle inspected regularly for any signs of trouble with the torque converter system.
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