Hyundai: Engine D4FA. Manual - part 137
DIESEL CONTROL SYSTEM
FLA -419
SCHEMATIC DIAGRAM
E3124AAD
28
G142 terminal 4
ON/START Input
C101-2 ECM
C101-1 ECM
1
30 29
31
32
38
39
36
37
35
33
34
40
42 41
46 45 44 43
48 47
50 49
2
3
4
6
5
8
7
12 11 10 9
13
14
15
18 17
19
16
22
25
27 26
23
20
21
24
28
51
75 74
53 52
73
79 78 77 76
80
81
83 82
84
86 85
87
89 88
90
92 91
93
94
57
69 68
70
71
64
54
55
56
61
58
59
60
63 62
65
66
67
72
C101-1 ECM
C142 J/C
MAFS
Water in fuel sensor
I/P JUNTION BOX
2
I/P-E
4
28. ON/START Input
Hot in ON or START
11
10A ECU
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Terminal
Terminal
Connected to
Connected to
Function
1
2
4
3
6
5
8 7
12
13
16
17
18
23 22
20
21
19
27 26 25 24
28
29
30
14
9
10
11
15
33 32 31
34
37
41
42
40 39 38
35
36
43
44
47 46
49 48
50
53
56
58 57
54
51
52
55
59
60
45
EGNG013E
SIGNAL WAVEFORM AND DATA
E713C46C
Main relay
IG KEY signal
Fig.1
Fig.1) The waveforms of IG KEY "ON" signal and main relay operation are measured simultaneously.
Check poor connection at the point of IG KEY "ON".
EGNG013F
TERMINAL AND CONNECTOR INSPECTION
EF17371E
1.
Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various prob-
lems and damge of component.
2.
Perform checking procedure as follows.
1)
Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.