P0744: Torque Converter Clutch Circuit Intermittent
3 vehicles · 2 makes · $600-$8,000 repair
Most Reported On
P0744 is an OBD-II diagnostic trouble code meaning “Torque Converter Clutch Circuit Intermittent.” This code means the transmission computer detected an intermittent (on-and-off) problem with the torque converter clutch (TCC) circuit. The torque converter clutch locks up to create a direct mechanical link between the engine and transmission at cruising speed, improving efficiency, and the computer monitors that circuit and the converter's slip. When the lockup signal or engagement comes and goes erratically, this code sets. Drivers often feel shuddering, slipping, or surging at steady speeds, or the engine RPM may flare; it points to an electrical, fluid, or mechanical fault in the lockup system. This code is most commonly reported on 2013-2021 Nissan NV200, 2014-2018 Nissan Rogue (S, SV, SL), and 2003-2016 Citroen C3, with repair costs ranging from $600 to $8,000.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0744, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (3)
FAQ
What does P0744 mean?
P0744 stands for "Torque Converter Clutch Circuit Intermittent." This code means the transmission computer detected an intermittent (on-and-off) problem with the torque converter clutch (TCC) circuit. The torque converter clutch locks up to create a direct mechanical link between the engine and transmission at cruising speed, improving efficiency, and the computer monitors that circuit and the converter's slip. When the lockup signal or engagement comes and goes erratically, this code sets. Drivers often feel shuddering, slipping, or surging at steady speeds, or the engine RPM may flare; it points to an electrical, fluid, or mechanical fault in the lockup system.
What are the most common causes of P0744?
The most common causes of P0744 are: Low, dirty, or degraded transmission fluid, Failed or stuck torque converter clutch solenoid, Intermittent or chafed solenoid/TCC wiring, Corroded or loose transmission connector, Worn torque converter or internal clutch, Clogged valve body passages or sticking valve, Faulty transmission control module (TCM). The specific cause varies by vehicle.
How much does it cost to fix P0744?
Repair costs for P0744 range from $600 to $8,000, depending on the vehicle and root cause.
Which vehicles are affected by P0744?
Au7o has documented P0744 across 3 vehicle models from 2 manufacturers: Citroen, Nissan.
Sources (11)
- ForumNV200 Forum - CVT Transmission Problems
- Forum111 Complaints: 2014 Nissan Rogue Power Train Problems
- RecallStringer v. Nissan North America CVT Class Action Settlement
- articleNissan Rogue CVT Issues Cause Class Action Lawsuit
- articleSinspeed — Citroen/Peugeot SensoDrive Clutch & Gear Actuator Repairs
- ForumFrench Car Forum — SensoDrive gearbox troubleshooting (clutch + actuator most frequent failure)
- ForumFrench Car Forum — Citroen C3 SensoDrive issue (P1755 clutch actuator coherence fault, no-start)
- articleFixMyCar — Citroen C3 Problems: SensoDrive semi-auto is the main trouble spot (2002-2009)
- articleECU Testing — Citroen C2/C3 SensoDrive Gearbox ECU common fault (2003-2011)
- articleThe Vehicle Check — Citroen SensoDrive Clutch Actuator Fault and Repair (C2/C3 1.1/1.4/1.6)
- articleASR Gearbox Repairs — Citroen C3 Common Gearbox Problems (ETG locked in gear, harsh shifts)
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.