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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Engine Controls [Self-Diagnostics 3.0L]) >> Diagnostic Tests >> DTC P0550: Power Steering Pressure Switch Circuit - Malfunction >> Detection Condition

Detection Condition

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

The PCM monitors Power Steering Pressure (PSP) switch signal at PCM 104-pin harness connector terminal No. 14. If input voltage is low (switch stays on) for one minute when VSS is 37.2 MPH or more and ECT is 140°F (60°C) or more, PCM determines PSP switch circuit has a malfunction. This is a Continuous Monitor (CM). MIL illuminates if PCM detects malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for same malfunction has been stored in PCM. PENDING CODE is available if PCM detects malfunction condition during first drive cycle. FREEZE FRAME DATA is available. DTC is stored in PCM memory.

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