Check the following item when performing the trouble diagnosis.
Check any possible causes by interviewing the symptom and it′s condition from the customer if any malfunction, such as EPS warning lamp is turned ON, occurs.
Check if air pressure and size of tires are proper, the specified part is used for the steering wheel, and control unit is genuine part.
Check if the connection of steering column assembly and steering gear assembly is proper (there is not looseness of mounting bolts, damage of rods, boots or sealants, and leakage of grease, etc.).
Check if the wheel alignment is adjusted properly.
Check if there is any damage or modification to suspension or body resulting in increased weight or altered ground clearance.
Check if installation conditions of each link and suspension are proper.
Check if the battery voltage is proper.
Check connection conditions of each connector are proper.
Before connecting or disconnecting the EPS control unit harness connector, turn ignition switch “OFF” and disconnect battery ground cable. Because battery voltage is applied to EPS control unit even if ignition switch is turned “OFF”.
During quick steering, rasping noise may be heard from around the steering wheel. This is not a malfunction.
The noise is an operating noise of the EPS system under normal conditions. If the rasping noise occurs during slow steering, this may not be an operating noise of the system. In this case, it is necessary to find out the location of the noise and repair, if necessary.
Preparation
Commercial Service Tools

Precaution for Supplemental Restraint System (SRS) "AIR BAG"
and "SEAT BELT PRE-TENSIONER"Locking with key
Driver’s side
The power door lock system allows you to lock or
unlock all doors at the same time.
Turning the key toward the front 1 of the vehicle
locks all doors.
Turning the key one time toward the rear 2 of the
vehicle unlocks that door. From that position,
returning the key to ...
Door switch
With intelligent key
WITH INTELLIGENT KEY : Component Function Check
1.Check function
Select DOOR LOCK of BCM using CONSULT.
Select DOOR SW-DR, DOOR SW-AS, DOOR SW-RL and DOOR SW-RR in DATA MONITOR
mode.
Check that the function operates normally according to the following
conditions ...
Fuses
Two types of fuses are used. Type A is used in
the fuse boxes in the engine compartment. Type
B is used in the passenger compartment fuse
box.
Type A fuses are provided as spare fuses. They
are stored in the passenger compartment fuse
box.
Type A fuses can be installed in the engine com ...