Kia Stinger CK Quiz
Engine Control System/Fuel System

ETC (Electronic Throttle Control) System

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
20steps
~120min
4/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 20

Specifications

Specification

[Throttle Position Sensor (TPS)]

Throttle Angle (°) Output Voltage (V) [Ref=5V]
TP1 TP2
0 0,0 5,0
10 0,48 4,52
20 0,95 4.05
30 1,43 3,57
40 1,90 3.10
50 2,38 2,62
60 2,86 2.14
70 3,33 1,67
80 3,81 1.19
90 4.29 0,71
100 4,76 0,24
105 5,0 0
KT (6 - 15°) 0,29 - 0,71 4,29 - 4,71
WOT (93 - 102°) 4,43 - 4,86 0,14 - 0,57

[ETC Motor]

Item Specification
Coil Resistance (Ω) 1,1–1,7 [20 °C]

Description and Operation

Description

The Electronic Throttle Control (ETC) system consists of a throttle body with a built-in control motor and a Throttle Position Sensor (TPS). Unlike the conventional mechanical throttle system, which controls the throttle valve through a cable connected to the accelerator pedal, the ETC system controls throttle valve opening and closing through the ECM with the ETC motor, according to the APS (Accelerator Pedal Position Sensor) connected to the electronic accelerator pedal module. The TPS signal is used to provide throttle position feedback to the ECM. Also, the advantage of the ETC system is that it implements the cruise control function without additional external cruise control modules/cables.

Schematic Diagram

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

Throttle Position Sensor (TPS)

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

  2. Start the engine and measure the output voltage of TPS 1 and 2 at TP and VOT.

    Throttle Angle (°) Output Voltage (V) [Vref = 5 V]
    TP1 TP2
    0 0,0 5,0
    10 0,48 4,52
    20 0,95 4.05
    30 1,43 3,57
    40 1,90 3.10
    50 2,38 2,62
    60 2,86 2.14
    70 3,33 1,67
    80 3,81 1.19
    90 4.29 0,71
    100 4,76 0,24
    105 5,0 0
    KT (6 - 15°) 0,29 - 0,71 4,29 - 4,71
    WOT (93 - 102°) 4,43 - 4,86 0,14 - 0,57

ETC Motor

  1. Turn the ignition off.

  2. Disconnect the ETC module connector.

  3. Measure the resistance between terminals 3 and 6 of the ETC module.

  4. Make sure the resistance is within specification.

    Specification: 0.3–100 [20 °C]

Removal

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

  2. Remove the generator assembly.

    (See Engine Electrical System - "Alternator")

  3. Remove the intercooler outlet hose and tube.

    (Refer to Engine Mechanical System - "Intercooler")

  4. Disconnect the ETC module connector (A).

  5. Disconnect the coolant hose (B).

  6. Remove the ETC module from the engine after loosening the installation bolt (C).

    Electronic Throttle Body mounting bolt:

    9,8–11.8 N·m

Cleaning

  1. Remove the ETC module.

    (Refer to Engine Control System - "ETC System")

  2. Hold the ETC module panel (A) open.

  3. Remove contamination from the throttle body using a soft cloth moistened with cleaning fluid.

  4. After cleaning, reinstall the ETC module, then perform the ETC module learning procedure.

    (Refer to Engine Control System - "ETC System" - Adjustment)

Installation

  1. Install in the reverse order of removal.

Adjustment

ETC Module Learning Procedure

When replacing or reinstalling, be sure to perform the ETC module learning procedure.

  1. Wait 1 minute with the ignition switched ON.

  2. Start the engine and maintain idle speed for 15 minutes.

  3. Wait 1 minute with the ignition switched OFF.

  4. Restart the engine and check that the idle speed is stable.

Troubleshooting

Fail-Safe Mode

Item Fail-safe
ETC Motor Throttle Valve Stuck at 5°
TPS TPS 1 Fault ECM Reads TPS2
APS 2 Fault ECM Reads TPS1
TPS 1, 2 malfunction Throttle Valve Stuck at 5°
APS APS 1 Malfunction ECM Reads APS 2
APS 2 Malfunction ECM Reads APS 1
APS 1, 2 malfunction Throttle Valve Stuck at 5°

Test yourself

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