Hyundai Santa Fe (2006 year). Manual — part 626
FLA -570
FUEL SYSTEM
SIGNAL CIRCUIT INSPECTION
E294F1F8
1.
Check short to battery in harness
1)
IG "OFF".
2)
Disconnect APS and PCM connector.
3)
Measure resistance between terminal 3 and 2 of APS harness connector.
4)
Measure resistance between terminal 2 and 6 of APS harness connector.
Specification : Infinite
5)
Is the measured resistance within specification ?
YES
▶ Go to "Ground Circuit Inspection" procedure.
NO
▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.
GROUND CIRCUIT INSPECTION
E7F55DD4
1.
Check open in harness
1)
IG "OFF".
2)
Disconnect APS connector.
3)
Measure voltage between terminal 6 of APS harness connector and chassis ground.(Fig. A)
4)
Measure voltage between terminal 6 and 5 of APS harness connector.(Fig. B)
Specification : Fig. "A" - Fig. "B" = approx. below. 200mV.
5)
Is the measured voltage within specification ?
YES
▶ Go to "Component Inspection" procedure.
NO
▶ Repair or replace contact resistance or open in harness and then, go to "Verification of VehicleRepair" pro-
cedure.
COMPONENT INSPECTION
EF093B88
1.
Check APS
1)
Ignition "ON" & ENG "OFF".
2)
Measure waveform of APS by pressing and depressing accellerator pedal with scantool.
DTC TROUBLESHOOTING PROCEDURES
FLA -571
SPECIFICATION :
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
APS1
APS2
EGRF975A
3)
Is the measured signal waveform O.K ?
YES
▶ Substitute with a known-good PCM and check for proper operation. If the problem is corrected,replace PCM
and then go to "Verification of Vehicle Repair" procedure.
NOTE
There is a memory reset function on scantool that can erase optional parts automaticallydetected and memorized by
PCM.
Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others
NO
▶ Substitute with a known-good APS and check for proper operation. If the problem is corrected,replace APS
and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
E9D238F9
Refer to DTC P2122.
FLA -572
FUEL SYSTEM
DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT
LOW INPUT
COMPONENT LOCATION
E25E809E
APS
SCMF16410L
GENERAL DESCRIPTION
EB95F666
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
ED213EE1
Checking output signals from APS 2, under detecting condition, if output signals are below the threshold, PCM sets P2127
and then MIL(Malfunction Indication Lamp) turns on.
DTC DETECTING CONDITION
EA171D94
Item
Detecting Condition
Possible Cause
DTC Strategy
• This code detects a continuous short to ground or
open in either the circuit or the sensor
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
DTC TROUBLESHOOTING PROCEDURES
FLA -573
SPECIFICATION
E2CFB9C8
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
EAB6B552
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
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