Kia Optima DL3: Electronic stability control (ESC) / ESC OFF usage
When driving
- ESC should be turned on for daily driving whenever possible.
- To turn ESC off while driving, press the ESC OFF button while driving on a flat road surface.
WARNING - Operating ESC
Never press the ESC OFF button while ESC is operating (ESC indicator light blinks).
If ESC is turned off while ESC is operating, the vehicle may slip out of control.
✽ NOTICE
- When operating the vehicle on a dynamometer, ensure that the ESC is turned off (ESC OFF light illuminated). If the ESC is left on, it may prevent the vehicle speed from increasing, and result in false diagnosis.
- Turning the ESC off does not affect ABS or brake system operation.
When ignition switch is turned to ON, the indicator light illuminates, then goes off if the ESC system is operating normally. The ESC indicator light blinks whenever ESC is operating or illuminates when ESC fails to operate.
This system provides further enhancements to vehicle stability and steering responses when a vehicle is driving on a slippery road or a vehicle detects changes in coefficient of friction between right wheels and left wheels when braking.
Other information:
Kia Optima DL3 2019-2025 Service and Repair Manual: Blower Resistor
Repair procedures Inspection 1. Measure the resistance between the terminals. 2. measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor) (1) Pin No 1.
Kia Optima DL3 2019-2025 Service and Repair Manual: Heater Control Unit
Components and components location Components Connector Pin Function [Connector A] Pin NO Funtion Pin NO Funtion 1 Ground 11 Ground 2 Clean signal 12 -
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