Hyundai Santa Fe (2006 year). Manual — part 388
FL -162
FUEL SYSTEM
SPECIFICATION
EA5B229B
Tempera-
ture
-40
℃
-20
℃
0
℃
20
℃
40
℃
60
℃
80
℃
Resistance
35.14
~43.76K
Ω
12.66
~15.12K
Ω
5.12
~5.89K
Ω
2.29
~2.55K
Ω
1.10
~1.24K
Ω
0.57
~0.65K
Ω
0.31
~0.37K
Ω
SCHEMATIC DIAGRAM
EAAD4B68
MAFS & IATS #1
ECM
C213
C230-A
C230-K
1
2
3
4
Battery Voltage (B+)
5
Sensor Ground
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
[CONNECTION INFORMATION]
Terminal
Connected to
Function
ECM C230-A (44)
ECM C230-K (89)
Main Relay
IATS #1 Signal
Reference Frequency
ECM C230-A (37)
MAFS Signal
ECM C230-A (42)
89 - IATS #1 Signal
44 - GND
42 - MAFS Signal
Main Relay
MAFS & IATS #1 (C213)
ECM (C230-K)
ECM (C230-A)
37 - Reference Frequency
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
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
IATS
3
2
5
4
1
1
2
3
4
5
SCMFL6113L
DTC TROUBLESHOOTING PROCEDURES
FL -163
SIGNAL WAVEFORM AND DATA
E8B07533
Fig.1
Fig.1) IATS output signal at warm idle.The higher temperature rises, the lower signal voltage becomes.
LFIG234A
TERMINAL AND CONNECTOR INSPECTION
E8DFF227
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.
2)
Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking
device and connecting condition between terminal and wiring.
NOTE
Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for
checking connecting condition. ( after checking, reconnect the pin at correct position. )
3.
Is the problem found?
YES
▶
Repair the trouble causing part and go to "Verification of Vehicle Repair".
NO
▶
Go to "Signal Circuit Inspection ".
SIGNAL CIRCUIT INSPECTION
EFC4C008
1.
Check signal circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect MAFS connector
3)
IG KEY "ON"
4)
Measure the voltage of terminal 3 of MAFS connector.
FL -164
FUEL SYSTEM
Specification : 4.8V~5.1V
5)
Is the measured voltage within the specification?
YES
▶
Go to "Component Inspection"
NO
▶
Go to "2.Check short to ground in signal circuit" as follows.
2.
Check short to ground in signal circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect MAFS connector and ECM connector
3)
Check continuity between MAFS connector terminal 3 and chassis ground.
Specification : Discontinuity ( Infinite
Ω
)
4)
Is the measured resistance within the specification?
YES
▶
Go to "Component Inspection".
NO
▶
Repair short to ground in signal circuit and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
E64161C3
1.
IG KEY "OFF", ENGINE "OFF"
2.
Disconnect MAFS connector.
3.
Measure resistance of IATS component terminal 3 and 2, referring to resistance characteristic table of specification
of General information.
Specification : Refer to Specification of General Information.
EGNG004S
4.
Is the measured resistance at certain temperature within the specified resisance range at the temperature?
DTC TROUBLESHOOTING PROCEDURES
FL -165
YES
▶
Go to "Verification of Vehicle Rapair"
NO
▶
Replace MAFS ASSY’ and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E7F6435E
After a repair, it is essential to verify that the fault is corrected.
1.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
2.
Clear recorded DTC using Scantool.
3.
Drive the vehicle within DTC "Enable conditions" in "General information".
4.
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
5.
Are any DTCs recorded ?
YES
▶
Go to the DTC guide of recorded NO. in Scantool.
NO
▶
System operates within specification.
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