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: Schematic Diagrams
System Block Diagram
Component Parts And Function Outline
Component partFunctionVehicle-speed sensor, ESP/ABS Control ModuleConverts vehicle speed to pulse.ECMReceives signals from sensor and control switches.Cruise control indicatorIlluminate when CRUISE main switch is ON (Built into cluster)Cr ...
Hyundai Sonata LF 2014-2019 Service Manual: Injector Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the injector connector.
3.
Measure resistance between the injector terminals 1 and 2.
4.
Check that the resistance is within the specification.
Specification: Refer to “Specification”
Removal
...
