Compressor Speed Sensor: Testing and Inspection

1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)SECTION Testing and Inspection



INSPECT COMPRESSOR LOCK SENSOR RESISTANCE
a. Disconnect the connector.
b. Measure resistance between terminals 1 and 2.
Standard resistance: 65 - 125 ohms at 20° C (68° F)
If resistance is not as specified, replace the compressor assembly.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.