Hyundai: Engine D4FA. Manual — part 120
DIESEL CONTROL SYSTEM
FLA -351
DTC P0650 MALFUNCTION INDICATOR LAMP(MIL) CONTROL CIRCUIT
COMPONENT LOCATION
E807E36B
EGNG009T
GENERAL DESCRIPTION
EB81D50C
As monitoring the errors of several sensors and actuator circuit, TCM related problem and ECM error, if any problem
occurs, ECM turns Engine Check Lamp ON at cluster to notify driver the occurence of a problem.Generally, Engine Check
Lamp turns ON at Ignition ON and turns OFF within couple of seconds after turning engine ON. If engine check lamp
turns on during driving, perform diagnosis of engine system and auto-transaxle system.
DTC DESCRIPTION
E7F64B1A
P0650 is set when 1)excessive current is detected in engine check lamp control circuit for more than 1.0 sec. at engine
check lamp ON condition or 2)like open or short to ground, no current is detected. This code is due to open in control
circuit or opened filament of lamp component.
DTC DETECTING CONDITION
EDC9D9D3
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON" (Monitoring only performed within
lamp operating condition)
ThresholdValue
• Short to battery
• Short to GND, Wiring open
DiagnosticTime
• 1.0 sec.
Fuel Cut
NO
EGR Off
NO
Fuel Limit
NO
Fail Safe
MIL
NO
• Open in engine check lamp
• Engine check lamp circuit.
FLA -352
FUEL SYSTEM
SCHEMATIC DIAGRAM
E04BABA8
M09-1 terminal 11
M09-2 terminal 4
10A Cluster FUSE
IG power
Engine check lamp control
C101-2 terminal 68
10A Cluster FUSE (IG power)
C101-2 ECM
M09 Cluster
M09-2
M09-1 11
4
Engine check lamp
CHECK
C101-2 ECM
C101-1 ECM
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
M09-1 Cluster
M09-2
Cluster
4
5
6
7
8
11
12
13
14
15
16
17
18
19
20
*
*
*
* *
1
2
3
4
5
6
7
9
10
11
12
*
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Terminal
Terminal
Connected to
Connected to
Function
68. Engine check lamp control
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
EGNG009U
TERMINAL AND CONNECTOR INSPECTION
E51FEF4B
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".
DIESEL CONTROL SYSTEM
FLA -353
NO
▶ Go to "Control Circuit Inspection".
CONTROL CIRCUIT INSPECTION
E6040292
1.
Check control circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect ECM connector.
3)
IG KEY "ON".
4)
Measure the voltage of terminal 68 of ECM connector.
Specification : 10.8V~13.0V
5)
Is the measured voltage within the specification?
YES
▶ Go to "2. Grounding test of check lamp control circuit" as follows.
NO
▶ Check open in filament of check lamp. ( Refer to Component Inspection)
▶ Repair open between cluster connector(M09-2) terminal 4 and ECM connector(C101-2) terminal 68 and go
to "Verification of Vehicle Repair",
2.
Grounding test of check lamp control circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect ECM connector.
3)
IG KEY "ON".
4)
Ground ECM connector terminal 68 to chassis ground.
specification : check lamp turns ON.
5)
Does check lamp turn ON?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Repair short to battery in check lamp control circuit and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
E8DF547C
1.
IG KEY "OFF", ENGINE "OFF".
2.
Dismount cluster and disconnect check lamp.
FLA -354
FUEL SYSTEM
3.
Check filament of check lamp.
4.
supply 12V to "check lamp" to turn lamp ON
specification : lamp turns ON when 12V is supplied.
5.
Does check lamp turn ON?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Replace check lamp and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E92CF181
After a repair, it is essential to verify that the fault is corrected.
1.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
2.
Clear recorded DTC using Scantool.
3.
Drive the vehicle within DTC "Enable conditions" in "General information".
4.
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
5.
Are any DTCs recorded ?
YES
▶ Go to the DTC guide of recorded NO. in Scantool.
NO
▶ System operates within specification.
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