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2017 TOYOTA HIGHLANDER
2.7L I4•FWD•AUTOMATIC•gas•1AR-FE
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor477Torque4154Fluid10DTC1940Battery1Maintenance0Recalls4
P0495low severityPowertrain

Cooling Fan Speed High

on 2017 Toyota Highlander 2.7L I4 · FWD

What this code means

The PCM has detected that the cooling fan speed is higher than expected. Excessive fan speed may indicate a control fault or sensor issue.

Symptoms

  • Fan running constantly at high speed
  • Excessive fan noise
  • Warning lamp on

Common causes

  • Faulty fan control module
  • Faulty coolant temperature sensor
  • Damaged wiring or connector
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes
  2. Monitor fan speed and coolant temp data
  3. Inspect fan control wiring
  4. Test fan module and sensors
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Other Powertrain codes on this vehicle

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