Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH INSPECTION[L3]

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.

Specification:

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 normal, but PID value is out of specification, perform the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection




1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity inspection)

Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the harness.
- PSP switch terminal and PCM terminal 2T

Short circuit
- If there is no continuity, there is a short circuit. Repair or replace the harness.
- PSP switch terminal and body GND