Kia Cadenza YG: Fuses And Relays / Relay Box (Engine Compartment) Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Body Electrical System / Fuses And Relays / Relay Box (Engine Compartment) Repair procedures

Inspection
Power Relay Test (Type A)
   
–
Do not use pliers.
–
Pliers will damage the relays, which could cause the engine to stall or not start.
–
Carefully remove the relay using the relay puller.
Check for continuity between the terminals.
A. Front deicer
B. IGN2 relay
C. Blower relay
D. Burglar alarm horn relay
E. IGN1 relay
F. Cooling fan #1 relay

G. Cooling fan #2 relay
H. Start relay
I. Rear defogger
J. Horn relay
K. ACC relay
L. Fuel pump 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 Test (Type B)
Check for continuity between the terminals.
A : Rain sensor relay
B : Wiper 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 continuity between the No.30 and No.87 terminals when power is disconnected.

Power Relay Test (Type C)
Check for continuity between the terminals.
A : ECU relay
1.
There should be continuity between the No.30, 87a 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, 87a and No.87 terminals when power is disconnected.

Fuse Inspection
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 correct?
3.
Are there any blown fuses?
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 for optimizing the engine room package.

   
–
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.

    Components

    Components

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Ambient Sensor Description and Operation

    Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor resistance will increase with lower temperature, and decrease with higher temperatures.

    Kia Cadenza YG 2016-2021 Service Manual: Auto defoging sensor Repair procedures

    Inspection 1. Press the OFF switch more then 4 times within 2 seconds while pressing the MODE switch. DisplayFail description00Normal23Auto defog sensor OPEN24Auto defog sensor SHORT43Defog door potentiometer OPEN/SHORT44Defog door potentiometer * Diagnostic procedure refer to DTC code.

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