Powertrain, generic · Transmission

P0714 Transmission Fluid Temperature Sensor A Circuit Intermittent

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modeNo

The transmission fluid temperature sensor is an NTC thermistor whose resistance falls as the fluid warms; the module feeds it with 5 V through a resistor. A low signal therefore means very hot or a short to ground, a high signal very cold or an open circuit. P0714 means the signal drops out or jumps briefly – not long enough for P0712 or P0713. Ford's 2012 6R80 transmission names P0714 among its fluid temperature checks for open, short and in-range faults. Ram 6.7 bulletins of 2013 changed P0711–P0714 from a one-trip to a two-trip MIL to avoid needless warnings. GM files such jumps under P0711 instead. No source publishes thresholds for P0714 itself. A loose contact in the transmission connector or a chafing internal harness is the usual cause.

Likely causes

Loose contact in transmission connector (oil, corrosion, spread pins)
Internal harness chafing from movement or vibration
Sensor with internal contact fault
Module software (false warning)

Symptoms

  • Harsh shifts at times
  • Jumping fluid temperature display
  • Check engine or transmission lamp depending on manufacturer

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–600
Time0.5–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

transmission fluid temperature sensortransmission internal harnesstransmission control module

Related codes

P0710P0711P0712P0713P070E

References: newtonnet.co.uk, static.nhtsa.gov, static.nhtsa.gov.