SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System
REMOVAL
1. Turn ignition switch off and disconnect the battery (-) cable from the battery.
2. Disconnect the accelerator position sensor connector (A).
3. Unfasten the mounting bolt/nuts (B) and remove the accelerator pedal from the vehicle.
INSTALLATION
1. Install the accelerator pedal in according to the reverse order of "REMOVAL" procedure.
Accelerator pedal mounting nuts: 7.8 ~ 11.8N·m (0.8 ~ 1.2kgf·m, 5.8 ~ 8.7lbf·ft)
Page 1 of 1
SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System
INSPECTION
FUNCTION AND OPERATION PRINCIPLE
Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the
accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two
sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its
output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the
diagnostic system judges that it is abnormal.
SPECIFICATION
Pedal Position
Output Voltage (V) [Vref =
5.0V]
APS1 APS2
C.T 0.7 ~ 0.8 0.28 ~ 0.48
W.O.T 3.8 ~ 4.4 1.75 ~ 2.35
Item Sensor Resistance
APS1
0.7 ~ 1.3kΩ at 20°C
(68°F)
APS2
1.4 ~ 2.6kΩ at 20°C
(68°F)
SCHEMATIC DIAGRAM
Page 1 of 4
COMPONENT INSPECTION
1. Connect a scan tool to the Diagnosis Link Connector (DLC).
2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
Specification: Refer to SPECIFICATION.
3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect APS connector and measure resistance between APS terminals 5 and 6 (APS 1).
Specification: Refer to SPECIFICATION.
5. Disconnect APS connector and measure resistance between APS terminals 3 and 4 (APS 2).
Specification: Refer to SPECIFICATION.
INSPECTION
FUNCTION AND OPERATION PRINCIPLE
Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the
Page 2 of 4
accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two
sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its
output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the
diagnostic system judges that it is abnormal.
SPECIFICATION
Pedal Position
Output Voltage (V) [Vref =
5.0V]
APS1 APS2
C.T 0.7 ~ 0.8 0.28 ~ 0.48
W.O.T 3.8 ~ 4.4 1.75 ~ 2.35
Item Sensor Resistance
APS1
0.7 ~ 1.3kΩ at 20°C
(68°F)
APS2
1.4 ~ 2.6kΩ at 20°C
(68°F)
SCHEMATIC DIAGRAM
COMPONENT INSPECTION
1. Connect a scan tool to the Diagnosis Link Connector (DLC).
2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
Specification: Refer to SPECIFICATION.
3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect APS connector and measure resistance between APS terminals 5 and 6 (APS 1).
Specification: Refer to SPECIFICATION.
Page 3 of 4
5. Disconnect APS connector and measure resistance between APS terminals 3 and 4 (APS 2).
Specification: Refer to SPECIFICATION.
Page 4 of 4
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2007-2009 Kia Sorento Service & Repair Manual
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Description
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