Possible causes

– Faulty Transmission Fluid Temperature Sensor
– Transmission Fluid Temperature Sensor harness is open or shorted
– Transmission Fluid Temperature Sensor circuit poor electrical connection

When is the code detected?

Transmission Control Module (TCM) detects excessively low voltage from the fluid temperature sensor.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Possible shifting problems

P0712 HYUNDAI Description

The Automatic Transmission (A/T) fluid temperature sensor detects the A/T fluid temperature and sends a signal to the Transmission Control Module (TCM).

HYUNDAI Technical Service Bulletins for P0712 code