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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (HVAC System - Manual) >> Diagnostic Information and Procedures >> DTC P0530, P0532, or P0533 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Static Test

  1. Ignition OFF, disconnect the harness connector at the A/C refrigerant pressure sensor.
  2. Test for 0.721k ohms of resistance between the 5-volt reference terminal 2 and the low reference terminal 1.
    • If the resistance is not equal to or close to the specified value, replace the A/C refrigerant pressure sensor.
  3. Test for 0.721k ohms of resistance between the signal terminal 3 and the low reference terminal 3.
    • If the resistance is not equal to or close to the specified value, replace the A/C refrigerant pressure sensor.
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