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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Except HV, W/ Manual A/C) - Diagnostic Codes, Circuit Tests & Symptom Tests >> AIR CONDITIONING SYSTEM (for Gasoline Model with Manual Air Conditioning System) >> Blower Motor does not Operate [12/2019 - 10/2022] >> Description

Blower Motor does not Operate [12/2019 - 10/2022]: Description

If air does not flow from the registers after the blower switch on the air conditioning control assembly is operated, the following factors may be the cause.

Symptom Factor
No air flows from the registers
  • Air conditioning amplifier assembly malfunction
  • Blower motor with fan sub-assembly malfunction
  • Rear blower motor with fan sub-assembly malfunction
  • Warm-up control
  • Engine coolant temperature sensor malfunction
  • Harness or connector
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