P274C

Transmission Fluid Temperature Sensor C Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Increased fuel consumption
Check engine light comes on
Reduced vehicle dynamics
Transmission fluid overheating

Causes

Transmission fluid temperature sensor fault C
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Transmission control module (TCM) problems
Contaminated or low transmission fluid level

How to Fix

Check the level and condition of the transmission fluid
Inspect the sensor circuit for damage
Check sensor and TCM connectors for corrosion or poor contact.
Test transmission fluid temperature sensor C
If necessary, replace the sensor or repair the circuit

Related codes

P274A P274B P274D