Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH 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 (See POWER STEERING FLUID INSPECTION)

2. Disconnect the PSP switch connector.
3. Start the engine.

Specification:

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.