P0711: Transmission Fluid Temperature Sensor A Circuit Range/Performance

What does P0711 mean?

The fluid-temperature input does not change plausibly or falls outside expected behavior. It can be a sensor/connection issue or a genuine transmission-temperature problem rather than a direct open/short.

Generic OBD-II definition: Transmission Fluid Temperature Sensor A Circuit Range/Performance. Confirm applicability in your vehicle service information.

Common causes

• Drifting or sticking temperature sensor
• Poor harness connection
• Transmission overheating or another internal problem

Symptoms

• Harsh or delayed shifts
• Torque-converter clutch behavior changes
• Limp mode or transmission warning

Diagnostic focus

A reading stuck at one temperature differs from genuine rising heat under load. Use the trend and transmission warnings to decide whether to investigate the sensor or real overheating.

Can I keep driving with P0711?

Severity: Medium Avoid towing, steep loads, and prolonged driving until diagnosed. Stop and arrange recovery if the transmission slips, loses drive, overheats, or bangs into gear; driving through slip can cause further damage.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

• Compare cold-soak transmission temperature with ambient
• Monitor the warm-up trend
• Check fluid level and cooling operation by the specified procedure

Sources & review

• OBD-Codes.com: P0711
• TroubleCodes.net: generic code definitions

Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.