Hyundai Tucson: Fuses And Relays / Relay Box (Engine Compartment) Repair procedures

Hyundai Tucson (LM) 2010-2015 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 box.

Power Relay (Type A)

Check for continuity between the terminals.

A : Blower relay

B : Horn relay

C : Cooling fan relay (Low)

D : Start relay

E : Burglar horn relay

F : Rear glass defogger relay

G : ATM relay

H : Windshied deicer relay

I : Cooling fan relay (High)

J : A/C relay

K : Fuel pump relay

L : PTC heater relay #1

M : PTC heater relay #2

N : PTC heater relay #3

O : Fuel filter heater relay

1.	There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.

2.	There should be no continuity between the No.30 and No.87 terminals when power is disconnected.

Power Relay (Type B)

Check for continuity between the terminals.

A : Wiper relay (High)

B : Wiper relay (Low)

1.	There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.

2.	There should be continuity between the No.30 and No.87 terminals when power is disconnected.

Power Relay (Type C)

Check for continuity between the terminals.

A : Main relay

1.	There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.

2.	There should be no continuity between the No.30 and No.87 terminals when power is disconnected.

Fuse

1.	Be sure there is no play in the fuse holders, and that the fuses are held securely.

2.	Are the fuse capacities for each circuit correctx

3.	Are there any blown fusesx If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always determine why the fuse blew first and completely eliminate the problem before installing a new fuse.

Multi Fuse

-	Multi fuse is needed to replace in the mass when it damaged only one fuse.

-	When replace the multi fuse, refer to the "Engine compartment - component location" diagram exactly.

-	Use the multi fuse capacities for each circuit correctly.

Relay Box (Engine Compartment) Components and Components Location

Component Location ...

Relay Box (Passenger Compartment) Components and Components Location

Component Location ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Battery Description and Operation
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Hyundai Tucson (LM) 2010-2015 Service Manual: Engine Control Module (ECM) Schematic Diagrams
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