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Home >> Mazda >> 2001 >> MX-5 Miata L4-1.8L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Power Steering Pressure Switch >> Testing and Inspection
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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:
- 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.
- If not as specified, replace the PSP switch.
- 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
- If there is no continuity, the circuit is open. Repair or replace the harness.
- Power circuit (PSP switch connector terminal and PCM connector terminal 4C through common connector.)
- GND circuit (PSP switch GND circuit.)

Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the harness.
- PSP switch connector terminal and PCM connector terminal 4C through common connector to GND.
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