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-DATSUN1991MAXIMA SE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIGNITION CHECKSOPTICAL (EXCEPT 300ZX)CRANK ANGLE SENSOR
1991 Nissan-Datsun Maxima SE, Automatic
Crank Angle Sensor
1991 Nissan-Datsun Maxima SE, AutomaticSECTION Crank Angle Sensor
- Crank angle sensor is part of the distributor. If a fault is present in crank angle sensor, Code 11 may be set in ECU memory. If Code 11 is set, perform appropriate CODE 11 (CRANK ANGLE SENSOR) test in TESTS W/CODES article.
- To test crank angle sensor, leave sensor wiring connected. Using a logic probe or DVOM with an analog bar graph function, connect negative lead to ground and alternately connect positive lead to 1-degree (position) signal and 120/180-degree (reference) signal terminals of ECU connector. See CRANK ANGLE SENSOR ECU INPUT SIGNAL TERMINALS table.
- Measure voltages at both terminals with engine cranking. See CRANK ANGLE SENSOR ECU INPUT SIGNAL VOLTAGES table. If either signal is not present, check harness for short or open circuit. If no problems are found, replace crank angle sensor.
NOTE:
It is possible to measure crank angle sensor voltage with a conventional DVOM without bar graph function; however, it may not be easy to determine peak voltage signal due to the averaging of signal.
CRANK ANGLE SENSOR ECU INPUT SIGNAL TERMINALS (1)
| Model | 1-Degree Signal | 120/180-Degree Signal | ||
|---|---|---|---|---|
| Maxima | 42 & 52 | 41 & 51 | ||
| All Others | 31 & 40 | 22 & 30 | ||
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CRANK ANGLE SENSOR ECU INPUT SIGNAL VOLTAGES
| Application | 1-Degree Signal (Volts) | 120/180-Degree Signal (Volts) | |
|---|---|---|---|
| Maxima | 2.5-2.7 | 0.2-0.4 | |
| NX & Sentra | |||
| 1.6L | 2.0-3.0 | 0.1-1.3 | |
| 2.0L | 2.0-3.0 | 0.2-0.5 | |
| Pathfinder & Pickup | |||
| 4-Cylinder | 2.0-3.0 | 0.3-0.4 | |
| V6 | 2.0-3.0 | 0.2-0.5 | |
| Stanza | 2.0-3.0 | 0.2-0.5 | |
| 240SX | 2.0-3.0 | 0.1-1.3 | |
RENDER: 1.0x
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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.