| Circuit Diagram |

Components and Components Location
Description and OperationHyundai Elantra AD (2016-2020) Service Manual: Heater Core Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater and blower assembly.
(Refer to Heater - "Heater Unit")
3.
Remove the heater core cover (A) after loosening the mounting screws.
4.
Pull out the heater core (A) from the heater unit.
5.
To intall, ...
Hyundai Elantra AD (2016-2020) Service Manual: Immobilizer Control Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
3.
Discnnect the connector of the immobilizer unit and then remove the immobilizer unit (A) after loosening a nut.
Installation
1.
Install the ...