Hyundai Santa Fe (2006 year). Manual — part 602
FLA -474
FUEL SYSTEM
YES
▶ Go to the applicable troubleshoooting procedure.
NO
▶ System is performing to specification at this time.
DTC TROUBLESHOOTING PROCEDURES
FLA -475
DTC P0641 SENSOR REFERENCE VOLTAGE "A" CIRCUIT OPEN
GENERAL DESCRIPTION
E15F66A1
The ECM provides a 5volt reference voltage to Throttle Position Sensor 1(TPS1). The ECM monitors reference voltage
deviation from the power supply circuit of the sensors.
DTC DESCRIPTION
EF6A2456
Checking the voltage from sensor power supply every 1.87 sec. under detecting condition, if the value within detecting
condition lasts for more than 0.2 sec., PCM sets P0641. MIL(Malfunction Indicatin Lamp) turns on when the malfunction
lasts till consecutive 2 driving cycle.
DTC DETECTING CONDITION
E7552101
Item
Detecting Condition
Possible cause
DTC Strategy
• Sensor reference voltage check
Enable Conditions
• IG "ON"
Threshold value
• Sensor supply power〈 4.5V or 〉5.5V
Diagnosis Time
• Continuous
(More than 0.2 seconds failure for every
1.87 seconds test )
MIL On Condition
• 2 driving cycle
• Short in sensor power
supply line
• Faulty PCM
FLA -476
FUEL SYSTEM
SCHEMATIC DIAGRAM
EC1AC7D9
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
[CONNECTION INFORMATION]
ETC MODULE
C86
Terminal
Connected to
Function
1
2
ETC Module (C86)
3
4
PCM C30-B (16)
TPS 1 Reference Voltage (+5V)
5
6
PCM C30-B (57)
TPS 2 Signal
7
PCM C30-B (48)
TPS 1 Signal
8
PCM C30-B (14)
TPS 1 Ground
PCM (C30-B)
PCM
C30-B
1
2
5
6
3
4
7
8
PCM C30-B (2)
ETC Motor [+] Control
PCM C30-B (58)
TPS 2 Ground
TPS 2 Reference Voltage (+5V)
PCM C30-B (13)
ETC Motor [-] Control
PCM C30-B (1)
1
21
2
22
3
23
4
24
5
25
6
26
7
27
8
28
9
29
10
30
11
31
12
32
13
33
14
34
15
35
16
36
17
37
18
38
19
39
20
40
41
61
42
62
43
63
44
64
45
65
46
66
47
67
48
68
49
69
50
70
51
71
52
72
53
73
54
74
55
75
56
76
57
77
58
78
59
79
60
80
1
2
4
TPS 1
TPS 2
ETC MOTOR
16 - Reference Voltage (+5V)
48 - TPS 1 Signal
14 - GND
6
3
7
13 - Reference Voltage (+5V)
57 - TPS 2 Signal
58 - GND
8
5
2 - ETC Motor [+]
1 - ETC Motor [-]
M
SCMF16101L
MONITOR DTC STATUS
EDB80F42
1.
Check DTC Status
1)
Connect scantool to Data Link Connector(DLC).
2)
IG "ON".
3)
Select "Diagnostic Trouble Codes(DTCs)" mode, and then Press F4(DTAL) to check DTC’s information from the
DTCs menu
4)
Read "DTC Status" parameter.
DTC TROUBLESHOOTING PROCEDURES
FLA -477
SCMF16159L
5)
Is parameter displayed "Present fault"?
YES
▶ Go to "Terminal and connector inspection" procedure.
NO
▶ Fault is intermittent caused by poor contact in the sensor’s and/or PCM’s connector or was repaired and PCM
memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, con-
tamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair"
procedure.
TERMINAL AND CONNECTOR INSPECTION
EC1C2088
1.
Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by
interference from other electrical systems, and mechanical or chemical damage.
2.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.
3.
Has a problem been found?
YES
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
▶ Go to " Power Circuit Inspection " procedure.
POWER CIRCUIT INSPECTION
E1B2DC07
1.
Check voltage
1)
IG "OFF".
2)
Disconnect TPS connector.
3)
IG "ON" and ENG "OFF"
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