Hyundai Santa Fe (2006 year). Manual — part 441
FL -374
FUEL SYSTEM
DTC P0670 GLOW RELAY CIRCUIT MALFUNCTION
COMPONENT LOCATION
ED0542EA
Glow Relay
Auxiliary Heater Relay
SCMFL6508L
GENERAL DESCRIPTION
ED2AA0E4
Heating combustion chamber, glow plug increases fuel ignitibility and makes fuel in the foggy state easily when engine
is cold. Thus, glow plug makes engine starting easily and decreases exhaust gas produced just after turning engine on
when engine is cold.ECM controls operation and operating duration of glow plug relay which supplies power to glow plug
with ECTS signal, battery voltage and IG KEY ON signal.Through glow lamp in cluster, ECM let drivers know if glow plug
is ON.
DTC DESCRIPTION
E7020BF3
P0670 is set when 1)excessive voltage is detected or 2)no current is detected like open or short to ground in glow relay
control circuit for more than 1 sec. at glow relay ON condition. This code is due to open in glow relay control circuit or
internal open in glow relay component.
DTC DETECTING CONDITION
EF4807F1
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON" (monitoring only performed within
relay operating condition)
Threshold Value
• short to battery
• Short to GND, Wiring open
Diagnostic Time
• 1.0 sec.
Fuel cut
NO
EGR Off
NO
Fuel Limit
NO
Fail Safe
Check
Lamp
NO
• Glow relay control circuit
• Glow relay component
DTC TROUBLESHOOTING PROCEDURES
FL -375
SPECIFICATION
E971562A
※
RELAY OPERATING TIME
- 20
℃
-10
℃
10
℃
50
℃
10V
16sec
10sec
4sec
2.0sec
14.9V
16sec
10sec
4sec
2.0sec
SCHEMATIC DIAGRAM
E832E495
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Main relay power ( 15A SENSOR #2 FUSE )
C206 Glow plug
Hot at all times ( 80A GLOW PLUG FUSIBLE LINK )
93 Glow relay control
C218 Glow relay
C230-K ECM
terminal
Connected to
Function
1
2
3
4
5
2
5
1
4
Glow relay control
C230-K terminal 93
Glow relay coil power
15A SENSOR #2 FUSE
-
-
Glow plug power(OUTPUT)
C206 terminal 1
Glow plug power(INPUT)
80A GLOW PLUG FUSIBLE LINK
5
1
2
4
*
C230-K
C230-A
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
ECM
73
51
29
7
1
2
3
4
5
6
74
52
30
8
75
77
53
35
36
37
34 33 32 31
9
76
54
10
55
11
78
56
12
79
57
13
80
58
14
81
59
15
82
60
38
16
83
61
39
17
84
62
40
18
85
63
41
19
86
64
42
20
87
65
43
21
88
66
22
89
67
45 44
23
90
68
46
24
91
69
47
25
92
70
48
26
93
71
49
27
94
72
50
28
Glow relay
C218
SCMFL6406L
MONITOR SCANTOOL DATA
EFD64FA9
1.
Connect Scantool to Data Link Connector (DLC).
2.
Warm engine up to normal operating temperature.
3.
Turn "OFF" electrical devices and A/C.
4.
Monitor "GLOW RELAY" parameter on the Scantool.
specification : After operating according to engine coolant temperature and battery voltage, Glow relay turns "OFF".
at IG KEY "ON". (Refer to Specification)
FL -376
FUEL SYSTEM
Fig.1
Fig.2
Fig 1) Operating state of Glow relay is shown. However, it is difficult to check operating state because Glow relay turns OFF
2~3 sec. after operation at normal temp.
Fig.2) Checking glow relay operation and power supply to glow plug using "ACTUATION TEST" on Scantool is convenient.
SCMFL6320L
TERMINAL AND CONNECTOR INSPECTION
ED7D66C4
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 "Power Circuit Inspection".
POWER CIRCUIT INSPECTION
E7CB40A7
1.
Check HOT AT ALL TIMES power circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect glow relay.
3)
Measure the voltage of glow relay connector terminal 1.
DTC TROUBLESHOOTING PROCEDURES
FL -377
Specification : 11.5V~13.0V
4)
Is the measured voltage within the specification?
YES
▶
Go to "2. Check IG KEY "ON" power circuit voltage" as follows.
NO
▶
Repair FUSIBLE LINK BOX 80A GLOW PLUG FUSIBLE LINK and related circuit and go to "Verification of
Vehicle Repair".
2.
Check IG KEY "ON" power circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect glow relay.
3)
IG KEY "ON".
4)
Measure the voltage of glow relay connector terminal 4.
Specification : 11.5V~13.0V
5)
Is the measured voltage within the specification?
YES
▶
Go to "Control Circuit Inspection".
NO
▶
Repair E/R FUSE
&
RELAY BOX 15A SENSOR #2 FUSE and related circuit and go to "Verification of Vehicle
Repair".
CONTROL CIRCUIT INSPECTION
ECEF7E5F
1.
Check control circuit monitoring voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect glow relay.
3)
IG KEY "ON".
4)
Measure the voltage of glow relay connector terminal 2.
Specification : 3.2V~3.7V
5)
Is the measured voltage within the specification?
YES
▶
Go to "Component Inspection".
NO
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст