P2744 covers brief dropouts or jumps in the sensor B signal that do not last long enough for the steady low or high codes. No manufacturer documents P2744 publicly; the makers that do use sensor B (GM and Ford dual-clutch units, Mitsubishi Twin Clutch SST) file erratic readings under P2741 instead. By analogy, Ford's 2012 strategy for the main sensor names P0714 alongside open, short and in-range checks. CARB requires such inputs to be watched for wiring faults and for readings beyond their scale. Practical causes are a loose terminal in the gearbox connector, a chafed lead near hot or moving parts, or corrosion that only acts under vibration or heat. The fault often vanishes at the workshop, so freeze-frame data and wiggle tests matter.
Medium severity. Can I keep driving?Drive gently to a repair shop. If it slips, you hear clunks, or it loses its gears, do not keep driving.
Symptoms
- Warning lamp that comes and goes
- Short spikes in fluid temperature B on the scan tool
Most likely causes
- Loose or spread terminal in the transmission connector
- Harness to sensor B chafing on hot or moving parts
- Moisture or corrosion in the connector
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
What each character of P2744 means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- 7: Transmission
- 44: Specific fault in that system
Frequently asked questions
Can I keep driving with code P2744?
Drive gently to a repair shop. If it slips, you hear clunks, or it loses its gears, do not keep driving.
What causes code P2744?
The most common causes are: loose or spread terminal in the transmission connector; harness to sensor B chafing on hot or moving parts; moisture or corrosion in the connector.
Related codes
- P2740Transmission Fluid Temperature Sensor B Circuit
- P2741Transmission Fluid Temperature Sensor B Circuit Range/Performance
- P2742Transmission Fluid Temperature Sensor B Circuit Low
- P2743Transmission Fluid Temperature Sensor B Circuit High
- P0714Transmission Fluid Temperature Sensor A Circuit Intermittent
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.