P274A

Transmission Fluid Temperature Sensor C Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Check Engine Light Illuminates
Reduced transmission efficiency
Transmission fluid overheating
Unstable idling

Causes

Transmission fluid temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Low or contaminated transmission fluid
Problems with the transmission control unit

How to Fix

Check the level and condition of the transmission fluid
Check the integrity of the sensor circuit and connectors
Test the transmission fluid temperature sensor
Replace sensor if necessary
Reset the error code and check the system operation

Related codes

P0715 P0716 P0717