B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Power Steering Pressure Switch: Testing and Inspection
POWER STEERING PRESSURE SWITCH
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If the power steering pressure switch or circuit has an open or short, Diagnostic Trouble Code No. P1650 or P1651 is output.
INSPECTION
1. Start engine and run it at idle. Access PSP PID on SST (NGS tester).
2. While observing PSP PID, turn steering wheel from right to left.
PSP PID Data
3. If not as specified, disconnect the power steering pressure switch.
4. Start the engine and let it idle.
5. Connect an ohmmeter to the switch.
6. Check the continuity between the terminals of the switch.
PSP Continuity
7. If not as specified, replace the power steering pressure switch.
