Kia Rio: Engine Control System / Accelerator Position Sensor (APS)
Specifications
| Specification |
|
Accelerator Position |
Output Voltage (V) [Vref = 5V] |
|
|
APS1 |
APS2 |
|
|
C.T |
0.7 - 0.8 |
0.32 - 0.42 |
|
W.O.T |
3.98 - 4.22 |
1.93 - 2.17 |
Description and operation
| Description |
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.
Schematic diagrams
| Circuit Diagram |
Repair procedures
| Inspection |
| 1. |
Connect the KDS/GDS on the Diagnosis Link Connector (DLC). |
| 2. |
Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
|
|||||||||||
| Removal |
| 1. |
Turn the ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. |
Disconnect the accelerator position sensor connector (A). |
| 3. |
Remove the installation nuts (B) and then remove the accelerator pedal module.
|
| Installation |
| 1. |
Install in the reverse order of removal. |
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