Hyundai Santa Fe (2006 year). Manual — part 624
FLA -562
FUEL SYSTEM
NO
▶ Go to "Verification of Vehicle Repair" procedure.
※ Procedure of ETS Initialization
1. Erase the trouble codes on PCM
2. Turn the ignition key off and keep this condition until the main relay is turned off.(It will takes 10sec.)
3. Turn ignition key on more than 1second to record the throttle motor position on the EEPROM
VERIFICATION OF VEHICLE REPAIR
E76BBC64
Refer to DTC P2104.
DTC TROUBLESHOOTING PROCEDURES
FLA -563
DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT
LOW INPUT
COMPONENT LOCATION
E0BE8A33
APS
SCMF16410L
GENERAL DESCRIPTION
E88851B5
The Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS) 1&
2 and Accelerator Position Sensor(APS) 1&2. The APS is mounted in the accelerator pedal to detect the opening angle
of the accelerator pedal. It has 2 sensors to detect the accelerator position and a malfunction of the accelerator position
sensor. The ECM judges the current opening angle of the accelerator pedal from APS1&2, and the ECM controls the
throttle motor based on these signals.
DTC DESCRIPTION
E1F29B0E
Checking output signals from APS 1, under detecting condition, if output signals are below the threshold, PCM sets P2122
and then MIL(Malfunction Indication Lamp) turns on.
DTC DETECTING CONDITION
E55FAB15
Item
Detecting Condition
Possible Cause
DTC Strategy
• This code detects a continuous short to ground or
open in either the circuit or the sensor (0-100%)
Enable Conditions
• Ignition "ON"
Threshold
• APS1 〈 0.125V
Diagnosis Time
• Contineous
(More than 0.18sec. Failure for every 7.8sec. Test)
MIL On Condition
• 1 Driving Cycle
• Poor connection
• Open or short to ground
in Power circuit
• Open or short to ground
in Signal Circuit
• Faulty APS
• Faulty PCM
FLA -564
FUEL SYSTEM
SPECIFICATION
E25F0160
Output Voltage(V) [Vref = 5.0V]
Pedal Position
APS1
APS2
C.T
0.7 ~ 0.8V
0.29 ~ 0.46V
W.O.T
3.85 ~ 4.35V
1.93 ~ 2.18V
SCHEMATIC DIAGRAM
EBAF75D1
APS
E02
1
2
PCM C30-A (54)
APS 1 Signal
3
4
PCM C30-A (48)
APS 2 Reference Voltage (+5V)
APS 2 Ground
5
PCM C30-A (55)
APS 1 Ground
6
PCM C30-A (59)
APS 1 Reference Voltage (+5V)
PCM C30-A (57)
PCM (C30-A)
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
[CONNECTION INFORMATION]
Terminal
Connected to
Function
APS 2 Signal
PCM C30-A (49)
PCM
C30-A
19
14 13 12 11
31
34
35
36
30
10
24
22
65
67
50
74
75
76
77
5
2
6
APS (E02)
APS 1
APS 2
59 - Reference Voltage (+5V)
54 - APS 1 Signal
55 - GND
4
1
3
57 - Reference Voltage (+5V)
49 - APS 2 Signal
48 - GND
SCMF16124L
DTC TROUBLESHOOTING PROCEDURES
FLA -565
SIGNAL WAVEFROM AND DATA
E2434D88
Fig. 1
Fig. 1 : This is a signal waveform of APS 1 & 2 which shows that APS 2 increases voltage just half of APS 1 voltage
increase when accelleration.
APS1
APS2
EGRF970A
MONITOR DTC STATUS
EFFCAAE2
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.
SCMF16159L
5)
Is parameter displayed "Present fault"?
YES
▶ Go to "Terminal and connector inspection" procedure.
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