Hyundai Sonata: Indicator Lights / Immobilizer Indicator Light (Without Smart Key)
This indicator light illuminates:
When the vehicle detects the immobilizer in your key properly while the ignition switch is ON.
- At this time, you can start the engine.
- The indicator light goes off after starting the engine.
This indicator light blinks:
When there is a malfunction with the immobilizer system.
In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
Electronic Stability Control (ESC) OFF Indicator Light
This indicator light illuminates:
Once you set the ignition switch or the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3 seconds and then goes off.
When you d ...
Immobilizer Indicator Light (With Smart Key)
This indicator light illuminates for up to 30 seconds:
When the vehicle detects the smart key in the vehicle properly while the ignition
switch or the Engine Start/ Stop button is ACC or ON.
- At th ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Input shaft speed sensor 1 Repair procedures
Removal
1.
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechnical System - "Air cleaner")
2.
Remove the TCM.
(Refer to Dual Clutch Transmission Control System - "TCM")
3.
Remove the battery and tray.
(Refer to Engine Electrical System - "Battery")
4.
Remove th ...
Hyundai Sonata LF 2014-2019 Service Manual: ETC (Electronic Throttle Control) System Troubleshooting
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 v ...
