JAC J2 User Manual

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Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
169
2.
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Turn on “ignition switch”.
3.
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Read the trouble information (trouble code,
freeze frame): inquire in maintenance manual
to confirm the trouble component and type:
draw up maintenance solution with trouble
information and experiences.
4.
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Remove the trouble.
5.
Clear
memory:
run the
vehicle
properly
following the corresponding trouble diagnosis
conditions: read trouble related information
and confirm the clearing of the trouble.
2)
Connection
of
Diagnosis
apparatus:
The “K” line protocol and ISO9141-2 standard diagnosis joint are adopted for the system as shown in
the figure.
Standard Diagnosis Connector
This standard diagnosis joint is connected on the harness of engine steadily. The pins 4, 7 and 16 of the
standard diagnosis joint are used for engine electronic control system. The pin 4 of the standard
diagnosis joint is connected to the grounding wire: pin 7 is connected to the pin 15 of ECM, that is, the
“K” data line of the electronic control system of engine; pin 16 is connected to battery negative pole.

JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English