P2744

Transmission Fluid Temperature Sensor B Circuit Intermittent

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 transition to emergency mode

Causes

Transmission Fluid Temperature Sensor B Malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Transmission Control Module (TCM) Problems
Low or contaminated transmission fluid

How to Fix

Check the level and condition of the transmission fluid
Inspect the sensor wiring harness and connectors for damage.
Check the resistance and signal of the temperature sensor
If necessary, replace transmission fluid temperature sensor B
Check and replace the Transmission Control Module (TCM) if necessary.

Related codes

P2743 P2745 P0711