P1711 – ATF Temperature Sensor Range (Toyota)

Description

The ECM detected an ATF temperature sensor signal outside the expected range.

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Symptoms

Harsh shifting
Delayed shifting
Failsafe mode
Overheating symptoms
Check engine light

Causes

Faulty sensor
Low ATF
Dirty ATF
Wiring issues
TCM signal error

Diagnosis

Test sensor resistance
Inspect wiring
Check ATF condition
Scan TCM data
Check connectors

Repair

Replace sensor
Refill ATF
Service ATF
Repair wiring