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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) >> DTC B1451: Compressor Solenoid Circuit [12/2019 - 10/2022] >> Description

DTC B1451: Compressor Solenoid Circuit [12/2019 - 10/2022]: Description

The cooler compressor assembly receives refrigerant compression demand signals from the air conditioning amplifier assembly.

Based on this signal, the cooler compressor assembly changes the amount of compressor output.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B1451 Compressor Solenoid Circuit Open or short in compressor solenoid circuit
  • Cooler compressor assembly
  • Harness or connector
  • Air conditioning amplifier assembly
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