JAC J2 User Manual



Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
181
■
Apply a
small amount
of e
ngine oil
on seal
ring of
sensor in order
to facilitate
the installation.
■
Make
sure
that
adhesive
of
sensor and
intake
manifold is
well,
tighten the self-tapping screw

■
V
erify reliable installation of wire harness
connector.
II.
Engine
Coolant T
emperature
(ECT)
Sensor
1.
Instruction
of
Parts
The engine coolant temperature sensor measures the engine coolant temperature and sends the signal to
the ECM for control of ignition timing and fuel injection pulse width during start, idling, and normal
running. It adopts one negative temperature coefficient thermistor, of which the resistance reduces
following the increasing of the temperature. Depending on the voltage output of the sensor, the ECM
judges the t
empera
ture of coola
nt and sen
ds gas mixture with best a
ir-fuel ra
tio to th
e engine.
2. Installation Position of
Element
See figure right f
or installation positions.
3.
Wiring
Diagram
Pin 40: 5V Grounding
Pin 41: Cooling water temperature signal output
Fig. 4.3.004

JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English