Page 541 of 1336
1462-01
3. TROUBLESHOOTING
Problem Possible Cause Action
Engine will not
crankLow battery voltage Charge or replace
Loose, corroded or damaged battery cable
Repair or replace
Faulty starter or open circuit
Faulty ignition switch or blown fuse Repair or replace
Poor engine ground Repair
Engine cranks
too slowLow battery voltage Charge or replace
Loose, corroded or damaged battery cable
Repair or replace
Faulty starter
Starter does not
stopFaulty starter Repair or replace
Faulty ignition switch Replace
Engine cranks
normally, but
does not startBroken pinion gear or faulty starter Replace the starter
Broken flywheel ring gear Replace
Open circuit Repair
Page 620 of 1336
Hazard warning switch
bezel assembly
Drive door main switch
& Outside rearview mirror
switch
FATC switch
Steering wheel remote
control switchPassenger door switch
Lower main panel
switch
Start/stop switch
Cruise control switch
Multifunction switch
3. SWITCH SYSTEM LAYOUT
Page 671 of 1336

8710-01
Wiper troubleshooting
The wiper does not cycle one time when turning the multi-function wiper
switch from OFF to AUTO position or when starting the engine with the multi-
function wiper switch in AUTO position. Symptom 1.
When starting the engine with the multi-function wiper switch in AUTO position, the wiper always
cycles one time to remind the driver of system in AUTO mode.
This wiper operation is performed only for the first time when turning the multi-function wiper switch
from OFF to AUTO position with IGN ON. If the switch is turned from OFF to AUTO again after
that, the wiper is operated only when raining to prevent the wiper blade from wearing. 1.
2.
It rains but the wiper does not work with the wiper switch in AUTO position. Symptom 2.
Check if the multi-function wiper switch is in AUTO position.
Check the power to the rain sensor. That is, check the pin no. 3 (GND) and pin no. 4 (IGN).
Check that the wiper relay is intact. 1.
2.
3.
The wiper operates 3 or 4 times with high speed abruptly. Symptom 3.
Check if the wiper speed control switch is set to the fast side.
The fast stage has the highest sensitivity and is very sensitive to the small change of amount of rain
drops. Therefore, adjust the knob to lower the sensitivity level.
The wiper continues work even if the windshield glass is dry. Symptom 4.
Check the wiper blade for wear. If the wiper blade cannot wipe the glass uniformly and clearly, this
problem could occur. In this case, replace the wiper blade with a new one.
Check if the wiper speed control switch is set to the fast side. 1.
2.
The fast stage has the highest sensitivity and is very sensitive to the small change of amount of rain
drops. Therefore, adjust the knob to lower the sensitivity level.
The overall wiper response is too fast or slow. Symptom 5.
Check if the wiper speed control switch is set to the fast or slow side.
Notify that the user can select the sensitivity by selecting the variable resistance value. And, select a
proper stage.The wiper also cycles one time when the multi-function wiper switch is turned from OFF to AUTO
position during 5 minutes after the rain stops.
Page 752 of 1336

3) Immobilizer Ignition Key Verification
When turning the ignition key to the ON position, the power is supplied to the immobilizer unit and EMS
(ECU). The ECU communicates with the immobilizer unit to verify the key and transponder. If it is valid,
the ECU starts to control the engine or immobilizer indicator (illumination or flashing) when the ignition key
is turned to the START position.
Once the key is verified, valid key verification time is provided for 10 seconds and the engine can be
started by turning the ignition key to the engine START position during this verification time. If the ignition
key is turned to the START position again after the 10 seconds of verification time, the key verification
should be reperformed.
When the ignition key is inserted, the immobilizer unit requests the transponder verification through
the antenna.
The transponder sends the encrypted message to the immobilizer control unit.
The immobilizer unit compares the encrypted message received from the transponder to the
coded value through the logic circuit. If they are identical, it requests the transponder approval.
When the ignition is turned ON, the EMS (ECU) requests immobilizer verification process through
the P-CAN.
The immobilizer control unit sends the encrypted message to the EMS (ECU).
The EMS controls the engine normally when the coded value and the encrypted message sent
from the immobilizer are identical. 1.
2.
3.
4.
5.
6.
When the immobilizer verification has failed, the verification signal is sent again 3 times for 2
seconds, and the verification procedure is carried out up to 3 times by turning the ignition ON within
10 seconds. If the three re-verifications fail, verification procedure is stopped and will be restarted
after 10 seconds.
Page 758 of 1336

Smart key
Wireless communication with
SKM system by receiving LF
(Low frequency) and
transmitting RF (Radio
frequency)Emergency slot
For emergency use to
start the engine when
the smart key battery has
been discharged.
SKM
Wireless communication with other
modules through B-CAN, P-CAN,
hard wire to control SKM system
External buzzer
(SKM buzzer)
Sounds a warning related to SKM
system
START/STOP switch
- Supplies power to the
vehicle wiith a button
(ACC, IGN1, IGN2)
- Indicates vehicle status
with LED illumination and
flashing
1. OVERVIEW
The SKM (Smart Key Module) system is equipped to only the vehicles with smart key and is to prevent
theft and enhance the driver experience. When the driver presses a door handle switch carrying a smart
key, this system checks the smart key information and driver door status and locks/unlocks the doors
(passive function). The vehicle can be started when the driver enters the vehicle and presses the
START/STOP switch (passive start function).
2. COMPONENTS
Smart key indicator
Smart key undetected warning/
verification fail indicator
BCM
Communicates with SKM through
B-CAN to control the vehicle
components
Page 762 of 1336
Interior (center) antennaInterior (rear) antenna
The smart key verification many not possible in an area where the communication is poor, such as
the seat cushion that the seat heated wire is operated, around the pedals and the on the floor.
The smart key system malfunctions may occur when generating radio waves around the smart key
or vehicle, or attaching a electronic device which generates radio waves on the smart key or
vehicle. -
-
(2) Passive start actuation area
Starting the engine by pressing the START/STOP switch with the gear selector lever in "P" or "N"
position and the brake pedal depressed (START/STOP switch LED: green) after the driver has
entered the vehicle carrying a smart key. -
Passive start actuation area: Vehicle interior -
Page 763 of 1336

8712-03
(3) Passive LOCK
The passive LOCK (door LOCK) is activated by the door handle switch with a valid smart key present
within the passive entry actuation area.
Passive LOCK and verification by door handle switch
The ignition is turned OFF or ACC is turned ON.
All doors are closed and the driver door is unlocked.
The door handle switch on the driver or passenger door is pressed briefly.
The SKM verifies if a smart key is outside the vehicle using the door handle antenna (LF verification)
(The SKM searches the last smart key used first. Searching for a smart key signal from the outside
the vehicle is followed by searching from the inside the vehicle).
The verification signal (RF verification) from the smart key is sent to the REKES antenna of the SKM.
The SKM sends the Passive LOCK signal to the BCM through the B-CAN if the verified smart key is
found outside the vehicle.
The BCM receives the signal from the SKM and controls the door LOCK actuator and turn signal
lamp. (The buzzer sounds once and hazard warning lamp flashes twice when the system enters the
theft deterrent mode) -
1.
2.
3.
4.
5.
6.
If no smart key is identified as being outside the vehicle, the passive LOCK process is stopped and
restarted when the next signal is received from the door handle switch.
When the door handle switch is pressed with ACC ON and driver door unlocked, the SKM changes
the ignition status to OFF and sends the passive LOCK signal to the BCM through the B-CAN to lock
the door. The BCM ignores the signal if the ignition is turned ON. -
-
Page 764 of 1336

(4) Passive UNLOCK
The passive UNLOCK (door UNLOCK) is activated by the door handle switch with a valid smart key
present within the passive entry actuation area.
Passive UNLOCK and verification by door handle switch
The driver door is locked and the system in the theft deterrent mode.
The door handle switch on the driver or passenger door is pressed briefly.
The SKM verifies if a smart key is outside the vehicle using the door handle antenna (LF verification)
(The SKM searches the last smart key used first).
The verification signal (RF verification) from the smart key is sent to the REKES antenna of the SKM.
The SKM sends the Passive UNLOCK signal to the BCM through the B-CAN if the verified smart key
is found outside the vehicle.
The BCM receives the signal from the SKM and controls the door UNLOCK actuator and turn signal
lamp. (The buzzer sounds twice and hazard warning lamp flashes once when the theft deterrent
mode is deactivated) 1.
2.
3.
4.
5.
6.
If no smart key is identified as being outside the vehicle, the passive UNLOCK process is stopped
and restarted when the next signal is received from the door handle switch.
When the driver door is locked with ACC ON, the SKM sends the Passive UNLOCK signal to the
BCM through the B-CAN to unlock the door without changing the ignition status to OFF. (The vehicle
power is turned OFF when the door is opened.)
Smart key searching
* Theft deterrent mode: deactivated after searching the outside vehicle
* Theft deterrent mode deactivated: outside searching after inside searching -
-
-