Hyundai Santa Fe (2006 year). Manual — part 463
FL -462
FUEL SYSTEM
DTC DETECTING CONDITION
E5E34C80
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• Engine running
Threshold Value
• (Case 1) VSCA real value is higher than VSCA
target value by more than 5%.
• (Case 2) VSCA real value is lower than VSCA
target value by more than 7%.
• (Case 3) Variable swirl valve operating motor is
mechanically stuck during operation
• (Case 4) Variable swirl valve operating motor is
mechanically stuck during learning ’closing’ process.
Diagnostic Time
• (Case 1,2,3) 1 sec.
• (Case 4) 3 sec.
Fuel cut
NO
EGR Off
(Case1,2)
:
NO
(Case3,4)
:
YES
Fuel Limit
NO
Fail Safe
Check
Lamp
NO
• Swirl valve opened at
variable swirl control
actuator failure
• Variable swirl valve
shaft stuck
• Variable swirl valve link
device problem
• Variable swirl valve position
sensor component
SPECIFICATION
E5DFC840
Variable swirl control actuator characteristic curve
Degree
[ ]
Duty [%]
LFIG510A
DTC TROUBLESHOOTING PROCEDURES
FL -463
SCHEMATIC DIAGRAM
E89AC280
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
[CONNECTION INFORMATION]
VARIABLE SWIRL CONTROL ACTUATOR
C269
Terminal
Connected to
Function
VARIABLE SWIRL
CONTROL ACTUATOR (C269)
3
2
ECM C230-A (30)
Reference Voltage (+5V)
Motor [-] Control
1
ECM C230-A (60)
Motor [+] Control
ECM C230-A (26)
ECM (C230-A)
ECM
C230-A
C230-K
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
5
Sensor Ground
ECM C230-A (6)
4
ECM C230-A (56)
Position Signal
1
2
3
4
5
5
4
3
SENSOR
MOTOR
26 - Reference Voltage (+5V)
56 - Position Sensor Signal
6 - GND
1
2
30 - Motor [-] Control
60 - Motor [+] Control
M
SCMFL6132L
FL -464
FUEL SYSTEM
SIGNAL WAVEFORM AND DATA
EE057353
Fig.1
Fig.2
Fig.1) Waveform when variable swirl valve closed at idle. Terminal 1 is (+) and 2 is (-).
Fig. 2) Waveform when variable swirl valve opened at above 3000RPM. Terminal 1 is (-) and 2 is (+).
Fig. 3) Waveform of variable swirl control actuator motor position sensor at the point of turning engine OFF.
4.3V at swirl valve closed and 0.3V at swirl valve opened. Swirl valve is opened and closed twice at engine "OFF".
(Measured at terminal 4)
Fig.3
Swirl valve fully closed
Swirl valve fully opened
SCMFL6421L
COMPONENT INSPECTION
E52F7BF8
1.
Check variable swirl control actuator link device operation
1)
IG KEY "OFF", ENGINE "OFF"
2)
Wait for approx. 16 sec. and check that Main relay turns "OFF".
3)
Disconnect variable swirl control actuator connector.
4)
Pressing variable swirl control actuator link with hands, check if shaft stuck, tightness or problem of link device
is detected.
Specification : variable swirl control actuator link device should move smoothly.
5)
Does variable swirl control actuator move slowly?
DTC TROUBLESHOOTING PROCEDURES
FL -465
YES
▶
Go to "2. Check motor coil resistance".
NO
▶
Replace stuck or too tight parts of component(intake manifold assy’ or swirl actuator) and go to "Verification
of Vehicle Repair".
2.
Check motor coil resistance
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect variable swirl control actuator.
3)
Measure the resistance between variable swirl control actuator component terminal 1 and 2.
Specification : 15.0 ± 3
Ω
(20
℃
)
5
4
3
2
1
3. VSCA position Sensor power
4. VSCA position Sensor signal
5. VSCA position Sensor ground
SCMFL6394L
4)
Is the measured resistance within the specification?
YES
▶
Go to "3. Check variable swirl control actuator position sensor resistance".
NO
▶
Replace variable swirl control actuator and go to "Verification of Vehicle Repair".
3.
Check variable swirl control actuator position sensor resistance
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect variable swirl control actuator.
3)
Measure the resistance of variable swirl control actuator component terminal 3,4,5 referring "Terminal resistance
table" as follows.
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