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Home >> Toyota >> 2021 >> Camry TRD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Auto A/C) - Diagnostic Codes (2 Of 2) & Symptom Tests (Except Hybrid) >> AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) >> ECO Switch Circuit [06/2017 - ] >> Description

ECO Switch Circuit [06/2017 - ]: Description

When the ECO switch assembly (electric parking brake switch assembly) is operated, the air conditioning amplifier assembly receives a signal and enables or disables ECO mode control of the air conditioning system.

Symptom Factor
When ECO switch assembly (electric parking brake switch assembly) is operated, blower speed does not change
  • Air conditioning amplifier assembly malfunction
  • ECO switch assembly (Electric parking brake switch assembly) malfunction
  • Harness or connector
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