Kia Carnival (2007 year). Manual — part 70
2007 > 2.7L V6 GASOLINE >
INSPECTION
FUNCTION AND OPERATION PRICIPLE
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 a malfunction has occurred.
SPECIFICATION
Pedal Position
Output Voltage (V) [Vref = 5.0V]
APS1
APS2
C.T
0.7 ~ 0.8V
0.29 ~ 0.46V
W.O.T
3.85 ~ 4.35V
1.93 ~ 2.18V
Item
Sensor Resistance
APS1
0.7 ~ 1.3k
Ω at 20°C (68°F)
APS2
1.4 ~ 2.6k
Ω at 20°C (68°F)
CIRCUIT DIAGRAM
COMPONENT INSPECTION
1. Connect a scantool on Diagnoisis Link Connector (DLC).
2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
Specification
Condition
Output Voltage (V)
APS1
APS2
C.T
0.70 ~ 0.80
0.29 ~ 0.46
W.O.T
3.85 ~ 4.35
1.93 ~ 2.18
3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect APS connector and measure resistance between APS terminals 5(6) and 4(5) (APS 1).
Specification: Refer to SPECIFICATION.
5. Disconnect APS connector and measure resistance between APS terminals 6(3) and 2(4) (APS 2).
Specification: Refer to SPECIFICATION.
Heated Oxygen Sensor
(HO2S)
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