Mazda 6 Service Manual: Power steering pressure (psp) switchinspection

Mazda 6 Service Manual / Fuel and emission control systems / Control system / Power steering pressure (psp) switchinspection

Note

Perform the following inspection only when directed.

Continuity Inspection

1. Inspect the following if the power steering is inoperative (See POWER STEERING FLUID INSPECTION.):

Power steering fluid level
Power steering fluid leakage
Power steering fluid pressure

2. Disconnect the PSP switch connector.

3. Start the engine.

4. Inspect for continuity between the PSP switch terminal and GND using an ohmmeter.

If not as specified, replace the PSP switch.
If the PSP switch is okay, but PSP PID value is out of specification, perform the Circuit Open Inspection.

Specification

Circuit Open Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)

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

Open circuit

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

- PSP switch terminal (harness-side) and PCM terminal 1Z (harness-side)

Short circuit

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

- PSP switch terminal (harness-side) and body GND

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