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

Kia Rio 2017-2023 YB Service Manual / Engine Control / Fuel System / Engine Control System / Accelerator Position Sensor (APS)

Specifications

Specification

Accelerator Position	Output Voltage (V) [Vref = 5V]
Accelerator Position	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).

Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.

Accelerator Position	Output Voltage (V) [Vref = 5V]
Accelerator Position	APS1	APS2
C.T	0.7 - 0.8	0.32 - 0.42
W.O.T	3.98 - 4.22	1.93 - 2.17

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

2.	Disconnect the accelerator position sensor connector (A).

Remove the installation nuts (B) and then remove the accelerator pedal module.

Accelerator pedal module mounting nut:

12.7 - 15.7 N·m (1.3 - 1.6 kgf·m, 9.4 - 11.6 lb·ft)

Installation

1.	Install in the reverse order of removal.

❮Heated Oxygen Sensor (HO2S)

Specifications Specification Heated Oxygen Sensor (HO2S) HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) Approximately 9.

Injector❯

Specifications Specification Injector Item Specification Coil Resistance (Ω) Approximately 9.

Other information:

Kia Rio 2017-2023 YB Service Manual: Lighting System

Specifications Specification Item Type Bulb Watt (W) Front Headlamp Halogen Low/High H4 LL 55/60 Turn signal lamp PY21W 21 Position lamp W5W

Kia Rio 2017-2023 YB Service Manual: Auto Defogging Sensor (FATC only)

Description and operation Description The Auto Defogging Sensor is installed on front windshild glass. The Auto Defogging Sensor senses moisture on the windshild. The air conditioner control module receives the signal from the sensor and eliminate the fog by controlling the intake actuator, A/C, auto defogging actuator, blower m