Back to 2003 Lexus LS 430

2003 LEXUS LS 430

4.3L V8RWDAUTOMATICgas
Repairs0Labor591Torque5693Fluid7DTC734Battery0Maintenance0Recalls0
P0710moderate severityPowertrain

Transmission Fluid Temperature Sensor Circuit

on 2003 Lexus LS 430 4.3L V8 · RWD

What this code means

Malfunction in the transmission fluid temperature sensor.

Symptoms

  • Check Engine Light
  • Incorrect shift timing
  • Limp mode possible

Common causes

  • Faulty temp sensor
  • Wiring issue
  • Connector corrosion

Diagnostic steps

  1. Test sensor resistance at known temperature
  2. Inspect wiring
  3. Check connector

Repair notes

Replace trans temp sensor (often internal, may require pan removal).

Other Powertrain codes on this vehicle

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