Hyundai Santa Fe (2006 year). Manual — part 474
FL -506
FUEL SYSTEM
SPECIFICATION : RESISTANCE CHARACTERISTIC TABLE FOR EACH TERMINAL
Resistance( K
Ω
20
℃
)
checking point
Pedal
Depressed
Pedal released
Characteristic
Component Connector
Shape
4(power)-
5(ground)
1.0±0.1K
Ω
1.0±0.1K
Ω
Unchanged
4(power)-
2(signal)
1.8±0.1K
Ω
1.1±0.1K
Ω
Resistance drops
APS 1
2(signal)-
5(ground)
1.1±0.1K
Ω
1.8±0.1K
Ω
Resistance rises
1(power)-
6(ground)
2.0±0.1K
Ω
2.0±0.1K
Ω
Unchanged
1(power)-
3(signal)
2.9±0.1K
Ω
2.1±0.1K
Ω
Resistance drops
APS 2
3(signal)-
6(ground)
1.1±0.1K
Ω
1.8±0.1K
Ω
Resistance rises
SCMFL6395L
4.
Are resistances for each terminal measured correctly?
YES
▶
Go to "Verification of Vehicle Rapair".
NO
▶
Replace APS and go to "Verification of Vehicle Rapair".
VERIFICATION OF VEHICLE REPAIR
E7A1E718
Refer to DTC P2123.
DTC TROUBLESHOOTING PROCEDURES
FL -507
DTC P2264 DETECTION OF WATER IN FUEL
COMPONENT LOCATION
EFA8FD0B
Fuel Filter
Water Sensor (included in Fuel Filter)
SCMFL6511L
GENERAL DESCRIPTION
E3D65CEF
Diesel fuel filter can seperate water from fuel. If water more than specified amount is detected by "water in fuel sensor"
installed at the bottom of fuel filter, "Fuel warning lamp" on cluster turns ON.Especially for high pressure pump and injec-
tors of common rail diesel engine water is fatal. because water causes poor lubrication and corrosion in such accurate
devices, furthermore, it leads engine hesitation. In order to prevent this harsh condition to engine, "Water warning lamp"
turns ON to let driver relief the gathered water from the filter and engine power generation is limited .
NOTE
If sensing prove of water in fuel sensor contacts with water, impressed voltage on prove is grounded to chassis
ground, then 12V is outputted from signal line. With this method, ECM recognizes the amount of water.
DTC DESCRIPTION
E4F1A423
P2264 is set when water in fuel sensor operates for more than 4 sec. Water warning lamp turns on and engine power
generation is limited in this condition. When this code is set, water in the filter should be removed to prevent engine from
water contained fuel. If same code is set even after removing water, check short to battery in water in fuel sensor signal
circuit or component failure.
DTC DETECTING CONDITION
E442E3BD
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
Threshold Value
• Signal voltage detected at Water sensor
Diagnostic Time
• 4.0 sec.
Fuel cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
Check
Lamp
NO
• Water stored inside of
fuel filter( remove water
inside of filter)
• Water sensor circuit(short
to battery)
• Water sensor component
FL -508
FUEL SYSTEM
SCHEMATIC DIAGRAM
E43E0DF6
1
Battery voltage(B+)
Main Relay
2
3
Sensor Signal
ECM C230-K (40)
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
Terminal
Connected to
Function
[CONNECTION INFORMATION]
C273
WATER SENSOR
3 2 1
Sensor ground
Chassis ground
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
40-Water Sensor Signal
B+
WATER SENSOR
(C273)
ECM(C230-K)
1
2
3
SCMFL6135L
TERMINAL AND CONNECTOR INSPECTION
E048B963
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
DTC TROUBLESHOOTING PROCEDURES
FL -509
▶
Go to "Power Circuit Inspection" as follows.
POWER CIRCUIT INSPECTION
E70F622C
1.
IG KEY "OFF", ENGINE "OFF".
2.
Disconnect Water sensor connector.
3.
IG KEY "ON"
4.
Measure the voltage of terminal 1 of Water sensor connector.
Specification : 11.0V~12.5V
5.
Is the measured voltage within the specification?
YES
▶
Go to "Signal Circuit Inspection".
NO
▶
Repair open in I/P JUNCTION BOX 10A ABS FUSE and related circuit and go to "Verification of Vehicle Repair".
SIGNAL CIRCUIT INSPECTION
EC353D94
1.
Check signal circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Water sensor connector.
3)
IG KEY "ON"
4)
Measure the voltage of terminal 2 of Water sensor connector.
Specification : 0.0V~0.1V
5)
Is the measured voltage within the specification?
YES
▶
Go to "2. Water warning lamp operation test" as follows.
NO
▶
Repair short to battery and go to "Verification of Vehicle Repair".
2.
Water warning lamp operation test
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Water sensor connector .
3)
IG KEY "ON"
4)
Connect Water sensor connector terminal 1 and 2 using jump wire.
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