2020 KIA CADENZA check engine

Maintenance
54 7
Multi fuse
If the multi fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery
cable.
3. Remove the nuts shown in the pic-
ture above.
4. Replace the fuse with a new one
of the same rating.
5. Reverse these steps to reinstall
the multi fuse.
✽ ✽
NOTICE
Do not disassemble nor assemble the
multi fuse when it is secured with
nuts and bolts. Incorrect or partial
assembly torque may cause a fire.
Have the vehicle checked by an
authorized Kia dealer.
Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery
cable.
3. Remove the nuts shown in the pic-
ture above.
4. Replace the fuse with a new one
of the same rating.
5. Reverse these steps to reinstall
the main fuse.
OYG070224NOYG070225N

755
Maintenance
✽ ✽
NOTICE
The electronic system may not func-
tion correctly even when the engine
compartment and internal fuse
box’s individual fuses are not dis-
connected. In such case the cause of
the problem may be disconnection
of the main fuse (BFT type), which is
located inside the positive battery
terminal (+) cap.
Since the main fuse is designed more
intricately than other parts, have the
vehicle checked by an authorized
Kia dealer.CAUTION
Visually inspect the battery cap
to ensure it is securely closed.
If the battery cap is not securely
closed, moisture may enter the
system and damage the electri-
cal components.

Maintenance
88 7
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

Index
4I
Emission control system ................................................7-87
Crankcase emission control system ............................7-87
Evaporative emission control (including ORVR:Onboard
Refueling Vapor Recovery) system ..........................7-87
Exhaust emission control system ................................7-88
Engine ............................................................................8-2
Engine compartment ................................................2-6, 7-3
Engine coolant ..............................................................7-20
Changing the coolant ..................................................7-22
Checking the coolant level..........................................7-20
Engine number ................................................................8-9
Engine oil ......................................................................7-18
Changing the engine oil and filter ..............................7-19
Checking the engine oil level ....................................7-18
ENGINE START/STOP button ......................................5-6
ENGINE START/STOP button position ......................5-6
Illuminated ENGINE START/STOP button ................5-6
Starting the engine with a smart key ............................5-8
Explanation of scheduled maintenance items ..............7-14
Exterior overview ............................................................2-2
Forward Collision-Avoidance Assist (FCA)
(Sensor fusion) ............................................................5-44
Brake operation ..........................................................5-49
Detecting sensors (Front view camera/Front radar) ..5-50
FCA warning message and control ............................5-47Limitation of the system ............................................5-54
System malfunction ....................................................5-52
System setting and activation ....................................5-44
Fuel filler door ..............................................................4-36
Closing the fuel filler door..........................................4-37
Emergency fuel filler door release ..............................4-37
Opening the fuel filler door ........................................4-36
Fuel requirements ............................................................1-2
Do not use methanol ....................................................1-4
Fuel Additives ..............................................................1-4
Gasoline containing alcohol and methanol ..................1-3
Operation in foreign countries ......................................1-5
Fuses ..............................................................................7-50
Engine compartment fuse replacement ......................7-53
Fuse/relay panel description ......................................7-56
Inner panel fuse replacement ......................................7-51
Gross vehicle weight........................................................8-5
Highway Driving Assist (HDA) ................................5-128
Warning Message ......................................................5-131
Hood ..............................................................................4-34
Closing the hood ........................................................4-35
Opening the hood ......................................................4-34
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