P1710 – ATF Temperature Sensor (Toyota)

Description

The ECM detected a malfunction in the automatic transmission fluid temperature sensor.

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Symptoms

Harsh shifting
Delayed shifting
Failsafe mode
Overheating warning
Check engine light

Causes

Faulty ATF temperature sensor
Damaged wiring
Connector corrosion
Low ATF level
TCM signal fault

Diagnosis

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

Repair

Replace ATF temp sensor
Repair wiring
Clean connectors
Refill ATF