Hyundai Santa Fe (2006 year). Manual — part 390
FL -170
FUEL SYSTEM
DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT
COMPONENT LOCATION
E356AAFA
ECTS
LFIG385A
GENERAL DESCRIPTION
E0EDC9B9
Engine Coolant Temperature Sensor(ECTS), installed in coolant line, senses engine coolant temperature.With the infor-
mation about engine coolant temperature, ECM performs fuel injection quantity correction, cooling fan control and glow
relay operating duration control.Especially, because ECTS signal is main variable of fuel injection quantity correction when
engine is cold, sensor trouble makes starting engine difficult when engine is cold.If engine is running when ECTS is out
of order, ECM considers engine coolant temperature as 80
℃
. And during cranking, ECM considers engine coolant tem-
perature as -10
℃
. Besides, cooling fan, which is controlled based on ECTS signal, operates at HIGH-MODE to prevent
engine from being overheated and supplementary heater is deactivated.
DTC DESCRIPTION
E89F57FF
P0117 is set when the voltage below 0.083V - minimum output voltage of ECTS - is detected for more than 2.0 sec. This
code is due to short to ground in signal circuit.
DTC TROUBLESHOOTING PROCEDURES
FL -171
DTC DETECTING CONDITION
E23715EB
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
Threshold Value
• Output signal below the minimum value.(
below 0.083 V )
Diagnostic Time
• 2.0 sec.
Fuel cut
NO
EGR Off
YES
Fuel Limit
NO
Fail Safe
Check
Lamp
NO
• A/C condensor fan control
operation based on engine
coolant temperature
inhibited.
• PTC heater inhibited.
• Cooling fan is fixed at
HIGH-MODE.
• During engine operation :
temperature is fixed at 80
℃
• At cold and cranking :
temperature is fixed at -10
℃
• ECTS circuit
• ECTS component
SPECIFICATION
EDD59882
Temperature
-40
-20
0
20
40
Resistance
48.14
㏀
15.48±1.35
㏀
5.790
㏀
2.45±0.14
㏀
1.148
㏀
Temperature
60
80
100
110
120
Resistance
0.586
㏀
0.322
㏀
0.188
㏀
0.147±0.002
㏀
0.116
㏀
FL -172
FUEL SYSTEM
SCHEMATIC DIAGRAM
E4689316
ECTS
C204
1
2
Cluster
-
ECM C230-A (58)
3
ECM C230-A (41)
ECTS Signal
ECM (C230-A)
ECTS (C204)
3
2
1
58 - ECTS Signal
Cluster
41 - GND
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
[CONNECTION INFORMATION]
Terminal
Connected to
Function
Sensor 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
1
2
3
SCMFL6119L
SIGNAL WAVEFORM AND DATA
E635F8BF
Fig.1
Fig.1) ECTS output signal at 80
.The higher temperature rises, the lower signal voltage becomes.
LFIG387A
MONITOR SCANTOOL DATA
ED4A0ECB
1.
Connect Scantool to Data Link Connector (DLC).
DTC TROUBLESHOOTING PROCEDURES
FL -173
2.
Warm engine up to normal operating temperature.
3.
Turn "OFF" electrical devices and A/C.
4.
Monitor "ECTS" parameter on the Scantool.
Specification : Current enigne coolant temperature is displayed.
Fig.1
Fig.1) Check if 1) incorrect value is displayed 2) coolant temperature is fixed at 80
suddenly during driving
3)coolant temperature is fixed at -10
when turning IG KEY "ON". That coolant temperature is fixed at -10
or 80
means failure of ECTS. To prevent overheat of engine due to ECTS , if ECTS fails, cooling fan operates continuously.
SCMFL6227L
TERMINAL AND CONNECTOR INSPECTION
E633DB0B
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
EA1B1C97
1.
Check signal circuit voltage
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