Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEM - 2.5LDTC P0550: PSP SENSORCOMPONENT INSPECTIONPOWER STEERING PRESSURE SENSOR
2004 Nissan-Datsun Altima S, Automatic
Power Steering Pressure Sensor
2004 Nissan-Datsun Altima S, AutomaticSECTION Power Steering Pressure Sensor
- Reconnect all harness connectors disconnected.
- Start engine and let it idle.
- Check voltage between ECM terminal 12 and ground under the following conditions.POWER STEERING PRESSURE SENSOR TERMINALS VOLTAGE
Condition Voltage Steering wheel is being turned fully. 0.5 - 4.5V Steering wheel is not being turned. 0.4 - 0.8V
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.