MX-5 Miata LS L4-1.8L DOHC (2001)
Power Steering Pressure Switch: Testing and Inspection
Inspection of Continuity
NOTE: Perform the following test only when directed.
1. Inspect as follows if power steering is inoperative:
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POWER STEERING FLUID INSPECTION.
2. Disconnect the PSP switch connector.
3. Start the engine.
4. Inspect for continuity between PSP switch terminal and GND using an ohmmeter.
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If not as specified, replace the PSP switch.
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If PSP switch is okay but PID value is out of specification, perform the "Circuit Open/Short Inspection."
5. Reconnect the PSP switch connector.
Circuit Open/Short Inspection
Open circuit
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If there is no continuity, the circuit is open. Repair or replace the harness.
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Power circuit (PSP switch connector terminal and PCM connector terminal 4C through common connector.)
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GND circuit (PSP switch GND circuit.)
Short circuit
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If there is continuity, the circuit is shorted. Repair or replace the harness.
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PSP switch connector terminal and PCM connector terminal 4C through common connector to GND.
