Kia Stinger CK: Engine Control System / Accelerator Position Sensor (APS)

Specifications
Specification

Accelerator
Position
Output Voltage (V) [Vref = 5V]
APS1
APS2
C.T
0.7 - 0.8
0.33 - 0.43
W.O.T
3.99 - 4.23
1.94 - 2.18

Description and operation
Description

Installed on the accelerator pedal module, the Accelerator Position Sensor (APS) detects the rotation angle of the accelerator pedal. As the APS is one of the most important sensors in the engine control system, each of its two sensors has independent power and ground line. APS 2 monitors APS 1, and its output voltage is half that of APS 1. If the ratio of APS 1 and APS 2 is out of range (approximately 1/2), the diagnostic system judges it as abnormal.

Schematic diagrams
Circuit Diagram

Harness Connector

Repair procedures
Inspection
1.

Connect the KDS on the Data Link Connector (DLC).

2.

TSwitch "ON" the ignition.

3.

Measure the output voltage of the APS 1 and 2 at C.T and W.O.T.

Accelerator
Position
Output Voltage (V) [Vref = 5V]
APS1
APS2
C.T
0.7 - 0.8
0.33 - 0.43
W.O.T
3.99 - 4.23
1.94 - 2.18

Removal
1.

Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.

Disconnect the accelerator position sensor connector (A).

3.

Remove the accelerator position sensor (C) after loosening the mounting bolt and nut (B).

Accelerator pedal sensor mounting bolt :

8.8 - 13.7 N·m (0.9 - 1.4 kgf·m, 6.5 - 10.1 lb·ft)

Installation
1.

Install in the reverse order of removal.

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Audio Unit

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Kia Stinger (CK) 2018-2023 Service Manual: Parking distance warning - reverse

The rear parking distance warning - reverse assists the driver during backward movement of the vehicle by chiming if any object is sensed within a distance of 120 cm (47 in.) behind the vehicle. This system is a supplemental system and it is not intended to nor does it replace the need for extreme care and attention of the driver. The sensing range and objects detectable by the back sensors (1) are limited.

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