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.
2000 Nissan-Datsun Maxima GLE, RE4F04BFACTORY OEM SERVICE PROCEDURE
Power Steering Pressure Switch System Test: Sentra
- Start engine. Measure voltage between ground and PCM harness connector terminal No. 46 (Purple/White wire) by backprobing. See Figure. With steering wheel fully turned, voltage should be about zero volts. When steering wheel is not being turned, voltage should be about 5 volts. If voltage is as specified, go to step 5. If voltage is not as specified, go to next step.
- Turn ignition off. Disconnect power steering pressure switch harness connector located on high-pressure hose. Check continuity between ground and power steering pressure switch harness connector Black wire. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire
- Turn ignition off. Disconnect PCM harness connector. Check continuity of Purple/White wire between power steering pressure switch harness connector and PCM harness connector terminal No. 46. If continuity exists, go to next step. If continuity does not exist, repair open circuit.
- Check power steering pressure switch. See POWER STEERING PRESSURE SWITCH . Replace components, if necessary. If components are okay, go to next step.
- No problem is indicated at this time. Problem may be intermittent. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - INTRODUCTION article.
Factory Service Tools
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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.
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