Crankshaft Angle Sensor

Crankshaft 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, go to CODE 11 diagnostic procedures 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 one-degree signal and 120/180-degree signal terminals of ECU. See CRANK ANGLE SENSOR ECU INPUT SIGNAL TERMINALS table.

With the engine cranking, peak voltage for one-degree signal should measure about 2.3-2.8 volts on DVOM. Peak voltage for 120/180-degree signal should measure about .1-.4 volt with engine cranking. 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 TERMINAL ⁽¹⁾

Model

1° Signal

120°/180° Signal

NX & Sentra

22 & 32

21 & 31

⁽¹⁾	To identify ECU terminals, see appropriate WIRING DIAGRAMS article.