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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 92 (Heating / Air Conditioning System (HV) - Diagnostic Codes (3 Of 3), Circuit Tests & Symptom Tests) >> AIR CONDITIONING SYSTEM (for HV Model) >> Cooling is Poor [11/2023 - ] >> Description

Cooling is Poor [11/2023 - ]: Description

WARNING: This page is about a different variant/trim than selected.

If the cooling effect of the air conditioning system is weak, the following factors may be the cause.

Symptom Factor
  • Cooling effectiveness is poor
  • Cooling response is slow
  • ECO mode control of air conditioning system is enabled
  • Compressor with motor assembly malfunction
  • Refrigerant volume (high)
  • Refrigerant volume (low)
  • Clogged cooler condenser assembly fins
  • Cooling fan system malfunction
  • Mechanical locking of damper and damper link
  • Solar sensor (automatic light control sensor) malfunction
  • High inlet air temperature
  • Harness or connector
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