Kia Cadenza YG: Engine Control System / ETC (Electronic Throttle Control) System Description and Operation

Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Engine Control System / ETC (Electronic Throttle Control) System Description and Operation

Description
The Electronic Throttle Control (ETC) System consists of a throttle body with an integrated control motor and throttle position sensor (TPS). Instead of the traditional throttle cable, an Accelerator Position Sensor (APS) is used to receive driver input. The ECM uses the APS signal to calculate the target throttle angle; the position of the throttle is then adjusted via ECM control of the ETC motor. The TPS signal is used to provide feedback regarding throttle position to the ECM. Using ETC, precise control over throttle position is possible; the need for external cruise control modules/cables is eliminated.

1. Dry bearing
2. DC motor
3. Non-contact hall sensor
4. Gear
5. Magnet
6. Hall IC
7. Yoke
8. Stator

Schematic Diagram

    Removal 1. Turn the ignition switch off and disconnect the battery negative (-) cable. 2. Disconnect the injector drive box (IDB) connector (A).

    Fail-Safe Mode ItemFail-SafeETC MotorThrottle valve stuck at 7°TPSTPS 1 faultECM looks at TPS2TPS 2 faultECM looks at TPS1TPS 1,2 faultThrottle valve stuck at 7°APSAPS 1 faultECM looks at APS 2APS 2 faultECM looks at APS 1APS 1,2 faultEngine idle state     When throttle value is stuck at 7°, engine speed is limited at below 1,500rpm and vehicle speed at maximum 40 ~ 50 km/h (25 ~ 31 mph)

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Repair procedures

    Inspection Initialization and diagnosis sequence by using diagnostic equipment Below content summarize the procedure for A/S using Diagnostic equipment Download Parameter 1. Select "AFLS" menu after selecting a vehicle. 2. Select "Parameter download" menu for define a characteristc of vehicle.

    Kia Cadenza YG 2016-2021 Service Manual: Start/Stop Button Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Using a screw driver or remover, remove the center fascia lower panel (A). 3. Remove the in-car hose (A) and disconnect the connectors (B) from the heater & A/C control unit. 4.

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