2015 KIA Optima relay

Features of your vehicle
42
4
Electric power steering
Power steering uses the motor to
assist you in steering the vehicle. If
the engine is off or if the power steer-
ing system becomes inoperative, the
vehicle may still be steered, but it will
require increased steering effort.
The motor driven power steering is
controlled by the power steering con-
trol unit which senses the steering
wheel torque and vehicle speed to
command the motor.
The steering wheel becomes heavier
as the vehicle’s speed increases and
becomes lighter as the vehicle’s
speed decreases for better control of
the steering wheel.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the power
steering checked by an authorized
Kia dealer.
✽ ✽
NOTICE
The following symptoms may occur
during normal vehicle operation:
• The steering effort is increased
immediately after turning the igni-
tion switch on. This happens as the
system performs the EPS system
diagnostics. When the diagnostics
are completed, the steering wheel
will return to its normal condition
• A click noise may be heard from the EPS relay after the ignition
switch is turned to the ON or
LOCK position.
• Motor noise may be heard when the vehicle is at a stop or at a low
driving speed.
• The steering effort increases if the steering wheel is rotated continuous-
ly when the vehicle is not in motion.
However, after a few minutes, it will
return to its normal conditions.
• When you operate the steering wheel in low temperature, abnor-
mal noise could occur. If tempera-
ture rises, the noise will disappear.
This is a normal condition.
If the Electric Power Steering System
does not operate normally, the warn-
ing light will illuminate on the instru-
ment cluster. The steering wheel may
become difficult to control or operate
abnormally. Take your vehicle to an
authorized Kia dealer and have the
vehicle checked as soon as possible.
STEERING WHEEL

Maintenance
62
7
✽
✽
NOTICE
The actual fuse/relay panel label
may differ from equipped items.
Instrument panel fuse replace-
ment
1. Turn the ignition switch and all other switches off.
2. Open the fuse panel cover.
OTF074017
CAUTION- Fuse Replacement
Do not input any other objectsexcept fuses or relays intofuse/relay terminals such as adriver or wiring. It may causecontact failure and system mal-function.
WARNING- Electrical Fire
When replacing a blown fuse or relay with a new one, make
sure the new fuse or relay fits
tightly into the clips The
incomplete fastening fuse or
relay may cause the vehicle
wiring and electric systems
damage and a possible fire.
Do not remove fuses, relays and terminals fastened with
bolts or nuts. The fuses,
relays and terminals may be
fastened incompletely, and it
may cause a possible fire. If
fuses, relays and terminals
fastened with bolts or nuts are
blown, we recommend that
you consult with an author-
ized Kia dealer.

Maintenance
66
7
Instrument fuse panel
✽
✽
NOTICE
Not all fuse panel descriptions in
this manual may be applicable to
your vehicle. It is accurate at the
time of printing. When you inspect
the fuse panel in your vehicle, refer
to the fuse panel label.
OTF074084N
OTF070023
Fuse/relay panel description
Inside the fuse/relay panel covers, you can find the fuse/relay label describing fuse/relay name and capacity.

767
Maintenance
Inner Fuse panel
Description Fuse RatingProtected Component
MULTIMEDIA 15A ISG LDC AUDIO,AUDIO_UVO, AUDIO(PA30A,B), NAVI1.5, NAVI_3.0, NAVI_4.0, TMU
PDM 1 25A Smart Key Control Module (With Smart Key)
SPARE 10A -
PDM2 10A SMK UNIT, BUTTON START SW
P/SEAT(PASS) 20A Passenger Seat Manual Switch AMP 30A AMP
P/SEAT(DRV) 30A Driver IMS Module, Driver Seat Manual Switch, Driver Lumbar Support Switch (2WAY) MEMORY 2 7.5A PIC_RF_RECEIVER
TRUNK 10A Trunk Lid Relay, Trunk Room Lamp
MODULE 7 10A SPORT_MODE_SW, RR POWER WINDOW SW
DR LOCK 20A Door Lock/Unlock Relay, Dead Lock Relay (RHD), Turn Signal Lamp Sound Relay
S/HEATER(RR) 20A Rear Seat Warmer Relay LH/RH
P/WDW(RH) 25ADriver Safety Power Window Module (RHD), Passenger Safety Power Window Module (LHD),
Rear Safety Power Window Module RH, Power Window RH Relay
P/WDW(LH) 25ADriver Safety Power Window Module (LHD), Passenger Safety Power Window Module (RHD),
Rear Safety Power, Window Module LH, Power Window LH Relay
MODULE 2 10A BCM, Panorama Sunroof, Rain Sensor

Maintenance
68
7
Description Fuse Rating Protected Component
BRAKE SWITCH 10A Smart Key Control Module, Start Stop Button Switch, FOB Holder, Stop Lamp Switch
MEMORY 1 10ASEAT EXTN (IMS), DR_TRIM_EXTN (FOLD’G), CLUSTER, A/CON, ECM, AUTO FOLDING RLY,
TPMS, POWER OUTLET, A_L_PHOTO_SNSR, MUT
SUNROOF 20A Panorama Sunroof
S/HEATER(FRT)
SEAT VERNT(FRT) 20A SEAT_EXTN (HEAT/VENT)
SPARE 10A -
A/BAG IND 10A Instrument Cluster
MODULE 3 10A Sport Mode Switch, Key Solenoid (W/O Smart Key)
MODULE 4 10ADriver/Passenger CCS Control Module (With CCS), Driver/Passenger Seat Warmer Module (W/O
CCS), Front Seat Warmer & CCS Switch, Oil Pump Inverter, ISG Low DC-DC Converter, Tire Pressure
Monitoring Module
A/BAG 15A A/BAG UNIT IG1 , WCS_PASS IG1
INTERIOR LAMP 10A Driver/Passenger Smart Key Outside Handle (With Smart Key), Driver/Passenger Door Lamp, A/C
Control Module, Ignition Key ILL. & Door Warning Switch (W/O Smart Key), RF Receiver (With Smart
Key), Driver IMS Module, BCM, Data Link Connector, Driver/Passenger Door Scuff Lamp, Power
Outside Mirror Switch, Auto Light & Photo Sensor (W/O B/Alarm), Lamp Auto Cut Relay, Instrument
Cluster
CLUSTER 10A CLUSTER (IGN1)
MDPS 7.5ACrash Pad Switch, EPS Control Module (With MDPS), Steering Angle Sensor (W/O MDPS),
ATM Lever Indicator, EPB Switch, EPB Control Module
PDM 3 7.5A Smart Key Control Module (With Smart Key)

769
Maintenance
Description Fuse RatingProtected Component
EPB10AEPB
SPARE20A-
IG 125AE/R BOX IG1
SPARE 10A -
POWER OUTLET 20A Front Power Outlet
MODULE 1 10A Auto Head Lamp Leveling Device Module (Auto HLLD), Head Lamp Leveling Device Switch (Manual
HLLD), Head Lamp Leveling Device Actuator LH/RH, BCM, Front Smart Parking Assist Sensor Module,
Instrument Cluster, Electro Chromic Mirror, A/C Control Module, Driver IMS Module, Rear Parking
Assist Buzzer, Lane Keeping Assist Module
START 7.5A B/ALARM RLY
HTD STRG 15A Steering Wheel Heater
MODULE 5 7.5A Smart Key Control Module (With Smart Key), Rear Seat, Warmer Relay LH/RH, E/R Fuse & Relay Box
(RLY.2), Diesel Box (Fuel Filter Relay)
A/CON 7.5A A/C Control Module, E/R Fuse & Relay Box (RLY.14)
SPARE 15A -
WIPER 25A E/R BOX WIPER RLY
C/LIGHTER 20A Cigarette Lighter MODULE 6 7.5A PANORAMA SUNROOF (IG2), IONIZER, DSL_BOX, RR_SEAT_WARMER HTD MIRR 10A Driver/Passenger Power Outside Mirror

Maintenance
72
7
Description Fuse Rating Protected Component
TCU 1 20A TCU
STOP LAMP 15A RLY.10 (HAC Relay), STOP LAMP RELAY DEICER 20A RLY.7 (Deicer Relay)
IG1 40A IGN SW
B+ 1 50A B+
B+ 2 60A B+
BLOWER 40A RLY.14 (Blower Relay) IG 2 40A IGN SW, IG2 RLY
ESC 1 40A ESC UNIT MOTOR B+, DIAGNOSIS ABS A/B VALVE B+
ESC 2 40A ESC UNIT SOLENOID B+
RR HTD 40A RLY.1 (RR HTD Relay)
B+ 3 60A B+
MDPS 80A EPS Control Module
SPARE 25A -
C/FAN 50A E/R BOX C/FAN1 RLY SWITCH
INVERTER 50A O_P_INVERTER EPB 2 30A EPB UNIT BATT2

Maintenance
76
7
Description Fuse Rating Protected Component
TCU 1 20A TCU
STOP LAMP 15A RLY.10 (HAC Relay), STOP LAMP RELAY DEICER 20A RLY.7 (Deicer Relay)
IG1 40A IGN SW
B+ 1 50A B+
B+ 2 60A B+
C/ FAN 2 60A C/FAN RLY
IG 2 40A IGN SW, IG2 RLY
ESC 1 40A ESC UNIT MOTOR B+ , DIAGNOSIS ABS A/B VALVE B+
ESC 2 40A ESC UNIT SOLENOID B+
RR HTD 40A RLY.1 (RR HTD Relay)
B+ 3 60A B+
MDPS 80A EPS CONTROL MODULE
SPARE 25A -
C/FAN 1 50A COOLING FAN RLY TGDI
BLOWER 40A E/R BOX BLOWER RLY SWITCH