Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH INSPECTION [MZI-3.7]

Continuity Inspection

1. Disconnect the PSP switch connector.

2. Start the engine.

3. Verify no continuity between the PSP switch terminals while rotating the steering wheel.

- If there is continuity, verify that P/S oil pump is normal and replace the PSP switch. Overhaul
- If the monitor item condition/specification (reference) is not within the specification, even though there is no malfunction, perform the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection





1. Disconnect the PCM connector. Service and Repair

2. Inspect the following wiring harness for open or short. (Continuity inspection)

Open circuit

- If there is no continuity, the circuit is open. Repair or replace the wiring harness.

- PSP switch terminal A and PCM terminal 2I

Short circuit

- If there is continuity, the circuit is shorted. Repair or replace the wiring harness.

- PSP switch terminal A and body ground