Camshaft Position Sensor; Outline Of Camshaft Position Sensor; Structure Of Camshaft Position Sensor; Function Of Camshaft Position Sensor - Kubota D1803-CR-E4 Workshop Manual

4. ENGINE

3.19 Camshaft position sensor

3.19.1 Outline of camshaft position sensor

The camshaft position sensor senses the teeth on a
pulsar gear and detects the angular position of the
camshaft.
3.19.2 Structure of camshaft position
sensor
The camshaft position sensor is made up of a magnet
and connector and the like.
(1) Terminal 5 V
(2) Terminal signal
3.19.3 Function of camshaft position
sensor
The camshaft position sensor senses the teeth on a
pulsar gear and detects the angular position of the
camshaft.
The pulsar gear has teeth at non-equal intervals.
The engine ECU calculates the piston position based
on the signal detected.
The camshaft position sensor is a magnetic resistance
element type sensor.
When the pulsar gear passes by the sensor part, the
internal magnetic field changes.
AC voltage is generated by the change in magnetic
field and this is rectified and output to the engine ECU.
4-32
(3) Terminal ground
(4) G sensor input circuit
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(1) Pulsar gear (cam)
3.19.4 Specification of camshaft position
sensor
Operating voltage
Pulsar gear number of teeth
Output waveform
(1) 3 pulses (6.28 rad 360°)
crank angle
NOTE
• Noted as G sensor on Diagmaster
MECHANISM
3. Fuel system
5 V
3
(2) 5 V
(3) 0 V
KiSC issued 12, 2018 A