Kia Optima Hybrid: Engine Control System / Accelerator Position Sensor (APS) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / Accelerator Position Sensor (APS) 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.

Heated Oxygen Sensor (HO2S) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between the HO2S terminals 4 and 5 [B1/S1]. Measure resistance between the HO2S terminals 3 and 4 [B1/S2]. ...

Accelerator Position Sensor (APS) Specifications

Specification AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.29 ~ 0.46W.O.T3.85 ~ 4.351.93 ~ 2.18 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures

Fuel Pressure Test 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures

High Voltage Shutoff Procedure Shut off the high voltage circuit before doing any work related with the high voltage system (Battery Pack Assembly, Power Relay Assembly, HPCU, BMS ECU, Hybrid Drive Motor, Inverter, HSG, LDC Power Cable, Electric Compressor, and so on). 1. Turn the ignition ...