JAC J2 User Manual



Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
204
2
）

ECM pin definiti
ons:
ECM pin definition list
Pin Function Pin Function
1
Reserved
terminal
33
Reserved
terminal
2
Heating
of
upstream
oxygen
sensor
34
Reserved
terminal
3
Ignition
coil
1
35
Phase
terminal
C
of
stepping
motor
4
Heating
of
downstream
oxygen
sensor
36
Phase
terminal
D
of
stepping
motor
5
5V
grounding
37
Carbon
canister
electromagnetic
valve
6
Reserved
terminal
38
Reserved
terminal
7
Ignition
coil
2
39
Sensor
grounding
1
8
Non-sustained
power
supply
40
Sensor
grounding
2
9
Engine
speed
output
41
Engine
coolant
temperature sensor
10
A/C
medium
pressure
switch
42
Phase
sensor
11
Reserved
terminal
43
Electric
grounding
1
12
Headlamp
switch
44
A/C
switch
13
Reserved
terminal
45
Upstream
oxygen sensor
14
Reserved
termin
al
46
Terminal
B
of
engine
speed
sensor
15
Diagnosi
s
K-line
47
Terminal
A
of
engine
speed
sensor
16
Sustained
power
supply
48
Power
grounding
1
17
Ignition
switch
49
Fuel
injector
2
(3
rd
cylinder)
18
5V
power
supply
2 50
Fuel
injector
1
(1
st
cylinder)
19
5V
power
supply
1 51
Non-sustained
power
supply
20
Malfunction
indicator
lamp
52
High
speed
fan
relay
21
Phase
terminal
B
of
stepping
motor 53
Reserved
terminal
22
Phase
terminal
A
of
stepping
motor
54
Reserved
terminal
23
SVS
lamp
55
Reserved
terminal
24
Fan
switch
56
Reserved
terminal
25
Intake
temperat
ure
sensor 57
V
ehicle
speed
signal
26
Throttle
position
sensor 58
Reserved
terminal
27
Reserved
terminal
59
Intake
pressure
sensor
28
Reserved
terminal
60
Oil
pump
relay
29
Downstream
oxygen
sensor 61
A/C
compressor
relay
30
Terminal
A
of
knock
sensor 62
Low
speed
fan
relay
31
T
erminal
B
of
knock
sensor
63
Fuel
injector
4
(2
nd
cylinder)
32
Main
relay
64 Reserved terminal
* Specific pin number is subject to harness schematic diagram (standby terminal defined as empty pin).
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JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English