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SEF956N
SEF335V
Component Description
NGEC0327
The crankshaft position sensor (OBD) is located on the transmis-
sion housing facing the gear teeth (cogs) of the flywheel or drive
plate. It detects the fluctuation of the engine revolution.
The sensor consists of a permanent magnet, core and coil.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
This sensor is not used to control the engine system.
It is used only for the on board diagnosis.
ECM Terminals and Reference Value
NGEC0328
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (AC Voltage)
43 B/W Sensors’ ground
[Engine is running]
쐌 Warm-up condition
쐌 Idle speed
Approximately 0V
53 L
Crankshaft position
sensor (OBD)
[Engine is running]
쐌 Warm-up condition
쐌 Idle speed
Approx. 0V
[Engine is running]
쐌 Engine speed is 2,000 rpm
Approx. 0V
DTC P1336 CRANKSHAFT POSITION SENSOR (CKPS)
(OBD) (COG)
KA24DE
Component Description
EC-446
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