Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH INSPECTION[AJ]

NOTE: Perform the following inspection only when directed.

Continuity Inspection
1. Inspect the following if the power steering is inoperative:
- 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 PSP switch terminal A and body ground using an ohmmeter.
- If the PSP switch is okay, but the PID value is out of specification, perform the "Circuit Open Short Inspection".
- If not as specified, replace the PSP switch.




Circuit Open/short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)

Open circuit
- PSP switch terminal A and PCM terminal 2T

Short circuit
- PSP switch terminal A and power supply
- PSP switch terminal A and body ground