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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.
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
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