Powertrain
Definition only
Lights the check engine lamp
P274A: Transmission Fluid Temperature Sensor C Circuit
Standardized SAE J2012 code · P27xx — Transmission
What does P274A mean?
The third transmission fluid temperature sensor returns no usable signal.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
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
Common causes
- High Open sensor element or broken sensor wire
- Medium Corroded sensor connector
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P274A on the same make and model first.
P274A in the community
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