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Home >> Mazda >> 1997 >> B2300 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Power Steering Pressure (PSP) Switch

Power Steering Pressure (PSP) Switch

  1. If PSP switch circuit is open or shorted, a Diagnostic Trouble Code (DTC) should set. See appropriate TESTS W/CODES article. If any DTCs are present, repair as necessary. If no DTCs are present, go to next step.
  2. To check PSP switch, connect New Generation Star (49 T088 0A0) scan tool to Data Link Connector (DLC) 2. DLC is located under left side of instrument panel, right of steering column. Turn ignition on. Using scan tool, access DIAGNOSTIC DATA LINK menu, and select PCM. Highlight and select PID/DATA MONITOR AND RECORD.
  3. Start engine and operate at idle. Using scan tool, access PSP PID and record value while rotating steering wheel from side to side. With steering wheel turned, PSP PID value should indicate ON. With steering wheel straight ahead, PSP PID value should indicate OFF. If PSP PID value is not as specified, go to next step.
  4. Disconnect PSP switch connector. Switch is located in left front of engine compartment. Start engine and operate at idle. Rotate steering wheel from side to side, and check for continuity between PSP switch terminals. With steering wheel turned, continuity should not exist. With steering wheel straight ahead, continuity should exist. If continuity is not as specified, replace PSP switch.
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