Powertrain, generic · Transmission

P0711 Transmission Fluid Temperature Sensor A Circuit Range/Performance

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modePossible

P0711 means the fluid temperature signal is electrically valid but implausible. Manufacturers check three things: the fluid does not warm up as expected (GM 2025 still below 15 °C after the calibrated warm-up time, Saab's AF40 below 20 °C after 10 minutes of driving), the value is stuck (Ford: within ±2 °F for about 2.5 minutes below 70 or above 225 °F), or it jumps unrealistically. GM's 6T70 compares it with the module's internal temperature. The MIL rating varies: GM's newer modules after two trips, Saab AF40 none, Ford none; a 2013 Ram 6.7 bulletin moved P0711–P0714 from one to two trips. A substitute value then limits adaption and converter clutch control.

Likely causes

Fluid temperature sensor drifting or stuck
High contact resistance in connector or harness (oil, corrosion)
Very cold weather or short trips (fluid does not reach warm-up threshold)
Outdated module software
Fluid cooler thermostat faulty

Symptoms

  • Harsh or late shifts
  • Torque converter clutch applies late or not at all
  • Check engine or transmission lamp depending on manufacturer
  • Implausible fluid temperature in the scan tool

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–600
Time1–4 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

P0710P0712P0713P0714P0218P0116

References: gsi.ext.gm.com, newtonnet.co.uk, saabwisonline.com, saabwisonline.com.