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Home >> Mazda >> 2003 >> B4000 Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Self-Diagnostic System >> On-Board Diagnostics >> Power Steering Pressure (PSP) Switch Test
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Power Steering Pressure (PSP) Switch Test

This tests the ability of the PCM to identify a state of change in the power steering fluid pressure. The steering wheel must briefly be turned at least 1/4 turn. This test is done during the KOER self-test.