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.

2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE

Crankshaft Position Sensor

CRANKSHAFT POSITION SENSOR RESISTANCE

Application

Ohms @ 77°F (25°C)

Altima, Maxima, Murano, Pathfinder, Sentra & 350Z

⁽¹⁾

Frontier & Xterra

⁽²⁾ 512-632

⁽¹⁾	Resistance should be more than zero ohms and not infinity. Measure between pins 1 to 2, 1 to 3 and 2 to 3.

⁽²⁾	Sensor resistance is measured at 68°F (20°C).

CRANKSHAFT POSITION SENSOR VOLTAGE

ECM Terminal No. ⁽¹⁾

Volts At Idle

Voltage At 2000 RPM

Altima

Frontier & Xterra

Maxima

2.4

2.3

Murano & 350Z

1.6

1.4

Pathfinder

1.6

1.5

⁽¹⁾	Measure voltage between ground and specified ECM harness connector terminal.

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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