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

Kia Picanto (JA) 2017-{YEAR} Service & Repair 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

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 engine control system, it consists of two sensors each with separate 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

[A/T]

[M/T]

Repair procedures

Inspection

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

2.	Turn the ignition switch ON.

Measure the output voltage of the 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)

Accelerator pedal module 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.

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Other information:

Kia Picanto (JA) 2017-2025 Service & Repair Manual: Normal Condition

General market Normal Maintenance Schedule - For Gasoline Engine [Except Europe (Including Russia)] The following maintenance services must be performed to ensure good emission control and performance. Keep receipts for all vehicle emission services to protect your warranty...

Kia Picanto (JA) 2017-2025 Owner's Manual: Scheduled maintenance service precaution

Follow the Normal Maintenance Schedule if the vehicle is usually operated where none of the following conditions apply. If any of the following conditions apply, follow the Maintenance Under Severe Usage Conditions. Repeated driving short distance of less than 8 km (5 miles) in normal temperature or less than 16 km(10 miles) in freezing temperature Extensive engine idling or low speed driving for long distances Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads Driving in areas using salt or other corrosive materials or in very cold weather Driving in heavy dust condition Driving in heavy traffic area Driving on uphill, downhill, or mountain road repeatedly Towing a trailer or using a camper, or roof rack Driving as a patrol car, taxi, other commercial use of vehicle towing Driving over 170 km/h (106 mph) Frequently driving in stop-and-go condition If your vehicle is operated under the above conditions, you should inspect, replace or refill more frequently than the following Normal Maintenance Schedule...