2021 KIA NIRO ECU

Maintenance
62 7
3. Check the removed fuse; replace it
if it is blown. To remove or insert
the fuse, use the fuse puller in the
engine compartment fuse panel.
4. Push in a new fuse of the same
rating, and make sure it fits tightly
in the clips. If it fits loosely, consult
an authorized Kia dealer.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.
ODEP079022
CAUTION
After checking the fuse panel in
the engine compartment,
securely install the fuse panel
cover to protect against any
electrical failure which may
occur from water contact. Listen
for the audible clicking sound to
ensure the fuse panel cover is
securely fastened.

763
Maintenance
Main fuse (Plug-in Hybrid)
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
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.
✽ ✽
NOTICE- Remodeling
Prohibited
Do not rewire your vehicle in any
way as doing so may affect the per-
formance of several safety features
in your vehicle. Rewiring your vehi-
cle may also void your warranty and
cause you to be responsible for any
subsequent vehicle damage which
may result.
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.
WARNING- Random
wiring prohibited when
retrofitting equipment
Use of random wiring in the
vehicle might cause danger due
to failure and damage of the
vehicle’s performance.
Using random wires especially
when retrofitting AVN or theft
alarm system, remote engine
control, car phone or radio
might damage the vehicle or
cause fire.
ODEP079023

Maintenance
66 7
Instrument panel (Driver’s side fuse panel) (Hybrid)
Fuse NameFuse ratingCircuit Protected
MODULE 510A
Electro Chromic Mirror, Audio/Video & Navigation Head Unit, Audio, Shift Lever Indicator, Air Conditioner
Control Module, Rear Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Front Seat
Warmer Control Module, Head Lamp Leveling Device Actuator LH/RH, Crash Pad Switch, AMP (Amplifier),
Keyboard, OBD
MODULE 410ALane Keeping Assist Control Module, Crash Pad Switch, Blind-Spot Collision Warning (BCW) Radar Left
Handle side/Right Handle side, EPB, VESS
INTERIOR
LAMP10AFront Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Luggage Lamp, Mood Lamp, Wireless
Charger, Rain sensor, Driver warning switch
A/BAG15APassenger Occupant Detection Sensor, ACU
IG 125AEngine Room Junction Block (Fuse - DCT4, HPCU2, ACTIVE HYDRAULIC BOOSTER3, ECU3)
CLUSTER10AInstrument Cluster
MODULE 310ABCM (Body Control Module), DCT (Dual Clutch Transmission) Shift Lever, Stop Lamp Switch, Driver Door
Module, Passenger Door Module
MEMORY 27.5AActive Air Flap Unit, VESS
MODULE 810AActive Air Flap Unit, Electric Water Pump (Engine), Engine Room Junction Block (Battery C/Fan Relay),
BMS (Battery Management System) Control Module
A/BAG IND7.5AAir Conditioner Control Module, Instrument Cluster
START7.5A[With Smart Key/With Immobilizer] Inhibitor Switch

775
Maintenance
Engine room compartment fuse panel (Hybrid)
Fuse NameFuse ratingCircuit Protected
MULTI FUSE
B+ 560AFuse - BATTERY C/FAN, HORN, ECU2, Engine Control Relay
B+ 260AInstrument Panel Junction Block (Fuse - S/HEATER (REAR))
B+ 360AInstrument Panel Junction Block
B+ 450AInstrument Panel Junction Block (Fuse - BATTERY MANAGEMENT, P/WINDOW (LH), P/WIN-
DOW (RH), TAIL GATE OPEN, SUNROOF, AMP, S/HEATER (FRT), P/SEAT (DRV))
COOLING FAN60ACooling Fan Relay
REAR HEATED50ARear Heated Relay
BLOWER40ABlower Relay
IG 140A[Without Smart Key] Ignition Switch, [With Smart Key] PDM1 (ACC) Relay, PDM2 (IG1) Relay
IG 240A[Without Smart Key] Ignition Switch, [With Smart Key] PDM3 (IG2) Relay
MDPS80AMDPS (Motor Driven Power Steering) Unit
PTC
HEATER 150APTC Heater 1 Relay
PTC
HEATER 250APTC Heater 2 Relay
CLUTCH
ACTUATOR40AClutch Actuator (HEV)
MAIN150AFuse - H/LAMP HI, INVERTER, ACTIVE HYDRAULIC BOOSTER1, ACTIVE HYDRAULIC
BOOSTER2, WIPER RR, EPB1, EPB2
P/OUTLET 140APower outlet Relay

777
Maintenance
Fuse NameFuse ratingCircuit Protected
FUSE
ACTIVE
HYDRAULIC
BOOTER 230AIntegrated Brake Actuation Unit
INVERTER30AAC Inverter Module
EPB 240APower Outlet Relay, EPB Unit
B/UP LAMP10AElectro Chromic Mirror, Back-Up Lamp LH/RH, INHIBITOR SW
ECU 310AECM (Engine Control Module)
HPCU 215AHPCU (Hybrid Power Control Unit), Clutch Actuator (HEV)
ACTIVE
HYDRAULIC
BOOTER 310AIntegrated Brake Actuation Unit
DCT 415ADCT (Dual clutch transmission) Shift Lever, TCM (Transmission Control Module), Inhibitor
Switch
SENSOR 310AFuel Pump Relay, Oil Control Valve #1/#2 (Intake/Exhaust), Camshaft Position Sensor #1/#2
(Intake/Exhaust)
BATTERY C/FAN15ABattery C/Fan Relay
HORN20AHorn Relay
SENSOR 210APurge Control Solenoid Valve, Cooling Fan Relay, Canister Close Valve, Mass Air Flow Sensor
ECU 120AECM (Engine Control Module)

Maintenance
78 7
Fuse NameFuse ratingCircuit Protected
FUSE
SENSOR 115AOxygen Sensor (Up), Oxygen Sensor (Down)
IGN COIL20AIgnition Coil #1/#2/#3/#4
ECU 215AECM (Engine Control Module)

779
Maintenance
Engine room compartment fuse panel (Plug-in Hybrid)
Fuse NameFuse ratingCircuit Protected
MULTI FUSE
B+ 560AFuse - BATTERY C/FAN, HORN, ECU2, Engine Control Relay
B+ 260AInstrument Panel Junction Block (Fuse - S/HEATER (REAR))
B+ 360AInstrument Panel Junction Block
B+ 450AInstrument Panel Junction Block (Fuse - BATTERY MANAGEMENT, P/WINDOW (LH), P/WIN-
DOW (RH), TAIL GATE OPEN, SUNROOF, AMP, S/HEATER (FRT), P/SEAT (DRV), IG3 1,
OBC, AMS)
COOLING FAN60ACooling Fan Relay
REAR HEATED50ARear Heated Relay
BLOWER40ABlower Relay
IG 140A[Without Smart Key] Ignition Switch, [With Smart Key] PDM1 (ACC) Relay, PDM2 (IG1) Relay
IG 240A[Without Smart Key] Ignition Switch, [With Smart Key] PDM3 (IG2) Relay
MDPS80AMDPS (Motor Driven Power Steering) Unit
PTC
HEATER 150APTC Heater 1 Relay
PTC
HEATER 250APTC Heater 2 Relay
CLUTCH
ACTUATOR40AClutch Actuator (PHEV)
MAIN150AFuse - H/LAMP HI, INVERTER, ACTIVE HYDRAULIC BOOSTER1, ACTIVE HYDRAULIC
BOOSTER2, WIPER RR, EPB1, EPB2

781
Maintenance
Fuse NameFuse ratingCircuit Protected
FUSE
ACTIVE
HYDRAULIC
BOOTER 230AIntegrated Brake Actuation Unit
INVERTER30AAC Inverter Module
EPB 240AEPB Unit
B/UP LAMP10AElectro Chromic Mirror, Back-Up Lamp LH/RH, INHIBITOR SW
ECU 310AECM (Engine Control Module)
HPCU 215AHPCU (Hybrid Power Control Unit), Clutch Actuator (PHEV)
ACTIVE
HYDRAULIC
BOOTER 310AIntegrated Brake Actuation Unit
DCT 415ADCT(Dual clutch transmission) Shift Lever, TCM (Transmission Control Module), Inhibitor
Switch
SENSOR 310AFuel Pump Relay, Oil Control Valve #1/#2 (Intake/Exhaust), Camshaft Position Sensor #1/#2
(Intake/Exhaust)
BATTERY C/FAN15ABattery C/Fan Relay
HORN20AHorn Relay
SENSOR 210APurge Control Solenoid Valve, Cooling Fan Relay, Mass Air Flow Sensor, ELCM
ECU 120AECM (Engine Control Module)