Powertrain
generic / SAE
P2744
Transmission Fluid Temperature Sensor B Circuit Intermittent
The second transmission fluid temperature sensor signal jumps or drops out intermittently. Loose connector or chafed wire.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 44
Possible causes
- Sensor connector not fully seated high
- Harness chafed against transmission housing medium
- Connector with intermittent contact under vibration low
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–350 €
- Estimated time: 0.5–2 h
- Component: trans fluid temp sensor b
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012