Hyundai Elantra (CN7): Fuses And Relays / Relay Box (Engine Compartment)

Hyundai Elantra (CN7) 2021-2026 Service Manual / Body Electrical System / Fuses And Relays / Relay Box (Engine Compartment)

Repair procedures

Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay block.
Power Relay (Type A)
Check for continuity between the terminals.
1.
After supplying power to between No. 85 and 86 power relay terminals, check that there is continuity between No. 30 and 87 terminals.
2.
After disconnecting power between No. 85 and 86 power relay terminals, check that there is no continuity between No. 30 and 87 terminals.
Engine Room Relay Block

Power Relay (Type B)
Check for continuity between the terminals.
1.
After supplying power to between No. 85 and 86 power relay terminals, check that there is continuity between No. 30 and 87 terminals.
2.
After disconnecting power between No. 85 and 86 power relay terminals, check that there is no continuity between No. 30 and 87 terminals.

PCB Block
1.
Disconnect the negative (-) battery terminal.
2.
Disconnect the PCB block connector (A).

3.
Push the four hooks (B) in the direction of the arrow and lift up the PCB block (A).

4.
Remove the PCB block by disconnet the connector.

Fuse
1.
Check that the fuse holders are loosely held and that the fuses are securely fixed by the holders.
2.
Check that each fuse circuit has the exact fuse capacity.
3.
Check the fuses for any damage.
   
•
If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always identify the cause of the blown fuse and completely eliminate the problem before installing a new fuse.
Multi Fuse
Engine room fuse is to optimize the package.

   
•
The entire multi fuse (A) has to be replaced even if only one fuse is damaged.
•
When replacing it, refer to "the Engine compartment- component location" diagram to check fuse capacities and circuit arrangement.
•
Use the multi fuse of the exact fuse capacity for each circuit.

    Component Location[Engine Room]1. Engine room junction block[Interior Relay]1. ICU (Integrated Central Control Unit)

    Repair procedures Fuse Inspection1.Check that the fuse holders are loosely held and that the fuses are securely fixed by the holders.2.Check that each fuse circuit has the exact fuse capacity.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Ignition Switch Assembly. Repair procedures

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    Repair procedures Replacement1.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 evaporator core (A) from the heater unit.

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