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Home >> Lexus >> 2007 >> LX 470 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning >> Air Conditioning System >> DTC 22 Compressor Lock Sensor Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK COMPRESSOR LOCK SENSOR 
    1. Disconnect the A4 compressor connector.
    2. Measure the resistance between terminals 1 and 2 of the compressor lock sensor connector.

      Standard resistance: 

      65 to 125 Ω at 20°C (68°F) 

    NG: REPLACE COMPRESSOR 

    Fig 1: Measuring Resistance Between Terminals 1 And 2 Of Compressor Lock Sensor Connector
    G05284140Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  2. CHECK WIRE HARNESS (AIR CONDITIONING AMPLIFIER - COMPRESSOR LOCK SENSOR) 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go to next step 

  3. CHECK WIRE HARNESS (COMPRESSOR LOCK SENSOR - BODY GROUND) 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE AIR CONDITIONING AMPLIFIER 

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