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Home >> Toyota >> 2012 >> Matrix Base, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Air Conditioning System (For Automatic A/C) (Diagnostic Codes & Circuit Tests)) >> AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) >> DTCS >> DTC B1451/51: Compressor Solenoid Circuit >> Description
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DTC B1451/51: Compressor Solenoid Circuit: Description

WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

Through this circuit, the compressor assembly with pulley receives a refrigerant compression demand signal from the air conditioning amplifier.

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

DTC No. DTC Detection Condition Trouble Area
B1451/51 Open or short in compressor assembly with pulley (compressor solenoid) circuit
  • Compressor assembly with pulley (compressor solenoid)
  • Harness or connector between A/C amplifier and compressor assembly with pulley (compressor solenoid)
  • A/C amplifier
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