Hyundai: Engine D4FA. Manual — part 158
![](/vehicles/eread/rudso/ynd/geys.png)
DIESEL CONTROL SYSTEM
FLA -503
DTC P2299 BRAKE PEDAL POSITION / ACCELERATOR PEDAL POSITION
INCOMPATIBLE
COMPONENT LOCATION
E197B6F0
APS
Brake S/W
EGNG001Z
GENERAL DESCRIPTION
E8C600E1
Brake switch monitors malfunction of accel pedal sensor(APS).Drivers depress brake pedal when 1).the voltage higher
than driver’s intension is detected due to APS malfunction(signal circuit short to high voltage) 2).engine power generates
excessively due to fault signal.Like previous example, if driver’s intension to decelerate is transmitted to ECM(brake pedal
depressed) when APS signal is high, ECM consider APS to be fault and Limp Home mode is activated.When Limp Home
mode is activated, engine speed is fixed at 1200RPM and driving performance is limited, later, if correct APS signal is
detected, Limp Home mode is deactivated immediately.
DTC DESCRIPTION
E1B8E6DA
P2299 is set when brake signal is inputted to ECM for more than 0.5 sec. while APS is depressed more than 5% at
above 870RPM, 2Km/h. And Limp Home mode is activated with the DTC code occurence. Later, if correct APS signal is
detected, Limp Home mode is deactivated immediately. This code is set when APS signal is a bit higher than the voltage
at accelerator released position and driver’s pedal manipulation, therfore careful inspection of APS and checking driver’s
pedal depressing habit is required.
![](/vehicles/eread/rudso/ynd/itro.png)
FLA -504
FUEL SYSTEM
DTC DETECTING CONDITION
E0FEC0D5
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• Engine run ( engine speed below 870RPM,
vehicle speed below 2Km/h)
ThresholdValue
• Brake pedal singal inputted at APS output
voltage above 5%
(Enabled when brake pedal released or accelerator
pedal depressed 200% per sec.)
DiagnosticTime
• 500ms
Fuel Cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
MIL
NO
• APS standard value is 0%.
• Limp home idle is fixed
at (1200RPM)
• A/C operation stops
according to Vehicle/Engine
speed
• Cruise control deactivated
(for Cruise control option
applied vehicle)
• APS 1 Circuit
• APS 2 Circuit
• APS component
SPECIFICATION
E57FB36A
Pedal released
Pedal depressed
Sensor Type
APS 1
0.7V~0.8V
3.8V~4.4V
APS 2
0.275V~0.475V
1.75V~2.35V
Variable resistance
type(Potentiometer)
![](/vehicles/eread/rudso/ynd/calemouesis.png)
DIESEL CONTROL SYSTEM
FLA -505
SCHEMATIC DIAGRAM
E2BEF1B4
1
6
2
2
5
3
1
4
C101-2 terminal 31
APS 2 sensor signal
APS 1 sensor signal
C101-2 terminal 9
3
APS 2 sensor power
C101-2 terminal 46
4
APS 2 sensor ground
C101-2 terminal 8
5
APS 1 sensor ground
C101-2 terminal 30
6
APS 1 sensor power
C101-2 terminal 45
C101-2 ECM
E107 Accel pedal sensor
E107 Accel pedal sensor
45. APS 1 sensor power
46. APS 2 sensor power
30. APS 1 sensor ground
8. APS 2 sensor ground
9. APS 1 sensor signal
31. APS 2 sensor signal
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
3
2
1
6
5
4
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTOR INFORMATION]
Terminal
Terminal
Connected to
Connected to
Function
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
EGNG002H
SIGNAL WAVEFORM AND DATA
E38795B0
APS 2 ground check
signal
APS 1
APS 2
Fig.1
Fig.1) APS 1 and APS 2 signals are measured simultaneously, Check if output value is rising and APS 2 is 1/2 of APS 1 signal.
EGNG014R
NOTE
APS 2 Ground checking signal is for ECM to monitor APS 2. This signal drops APS 2 output voltage to below
200.39mV per 200msec. If APS 2 output voltage does not drop to below 200.39mV, ECM sets DTC as recognizing
ground circuit error of APS 2 .
![](/vehicles/eread/rudso/ynd/jallld.png)
FLA -506
FUEL SYSTEM
※ The waveform below 200.39mV is not detectable in Ground checking signal waveform of APS 2 signal. Instead, the
waveform which drops a little is detected. If APS 2 data of "SERVICE DATA" on the Scantool varies from 350mV to 0mV
periodically, it means it works well.
MONITOR SCANTOOL DATA
E6DCDC84
1.
Connect scantool to Data Link Cable (DLC).
2.
Warm engine up to normal operating temperature.
3.
Turn "OFF" electrical devices and A/C.
4.
Monitor "ACCEL PEDAL SENSOR", "ACCEL PEDAL SENSOR 1", "ACCEL PEDAL SENSOR 2 " parameter on the
scantool.
Specification : at idle( 0% ) ACCEL PEDAL SENSOR 1 : 600mV~800mV
ACCEL PEDAL SENSOR 2 : 1/2 of ACCEL PEDAL SENSOR 1
Fig.1
Fig.1) APS output data at warm idle. Check if output value is rising and "ACCEL PEDAL SENSOR 2" is 1/2 of
"ACCEL PEDAL SENSOR 1" signal.
EGNG002J
TERMINAL AND CONNECTOR INSPECTION
ED494EF5
1.
Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various prob-
lems and damage 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 mail 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?
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