WCS
BCM (BODY CONTROL MODULE)
WCS-69
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
527
(GR)Ground PTC relay 2 control Output Ignition ONPTC heater 2 ON 0V
PTC heater 2 OFF Battery voltage
58
(Y)Ground Door unlock sensor Input Driver doorLock Battery voltage
Unlock 0V
59
(O)Ground Rear door switch LH InputRear door
switch LHOFF (When rear door LH
closed) Battery voltage
ON (When rear door LH
opened)0V
60
(GR)Ground Rear door switch RH InputRear door
switch RHOFF (When rear door RH
closed) Battery voltage
ON (When rear door RH
opened)0V
61
3
(O)Ground A/C switch Output A/C switchNot pressed Battery voltage
Pressed 0V
63
(R)GroundLight & rain sensor
serial linkOutputIgnition switch OFF Battery voltage
Ignition switch ON
64
7
(O)Ground PTC relay 1 control Output Ignition ONPTC heater 1 ON 0V
PTC heater 1 OFF Battery voltage
65
(V)Ground Turn signal LH OutputIgnition switch
ONTurn signal switch OFF 0V
Turn signal switch LH
66
(W)Ground Turn signal RH OutputIgnition switch
ONTurn signal switch OFF 0V
Turn signal switch RH
67
(G)GroundDoor unlock (pas-
senger and rear
doors)OutputDoor lock/un-
lock switchPressed to the unlock side Battery voltage
Pressed to the lock side 0V
68
1
(R)GroundBack door lock actu-
atorOutputBack door
opener switchPressed Battery voltage
Not pressed 0V
68
2
(R)GroundTrunk release sole-
noidOutputTrunk lid opener
switchPressed Battery voltage
Not pressed 0V Terminal No.
(Wire color)Description
ConditionReference Value
(Approx.)
Signal nameInput/
Output +−
MKIB0173E
SKIA1120J
SKIA1120J
WCS-70
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
1: Hatchback
2: Sedan
3: Manual A/C
4: Superlock
5: Remote keyless entry
6: Intelligent Key
7: LHD diesel69
(G)Ground Rear fog lamp OutputLighting switch
1ST and front
fog lamp switch
ONRear fog lamp switch OFF 0V
Rear fog lamp switch ON Battery voltage
70
(B)Ground Ground — — 0V
71
1
(V)Ground Rear wiper motor OutputRear wiper switch OFF 0V
Rear wiper switch ON Battery voltage
72
(LG)GroundBattery power sup-
plyInput — Battery voltage
73
(R)GroundInterior room lamp
power supplyOutputAfter passing the interior room lamp battery
saver operation time0V
Any other time after passing the interior room
lamp battery saver operation timeBattery voltage
74
(Y)GroundBattery power sup-
plyInput — Battery voltage
75
4
(V)Ground Super lock OutputWhen lock button of keyfob or Intelligent Key
is not pressed 0V
When lock button of keyfob or Intelligent Key
is pressed Battery voltage
76
(G)Ground Driver door unlock OutputDoor lock/un-
lock switchPressed to the unlock side Battery voltage
Pressed to the lock side 0V
77
(SB)Ground Door lock (All) OutputDoor lock/un-
lock switchPressed to the unlock side 0V
Pressed to the lock side Battery voltage
78
(L)GroundPower window pow-
er supplyOutput Ignition switchOFF or ACC 0V
ON Battery voltage
79
(Y)GroundBattery power sup-
plyInput — Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionReference Value
(Approx.)
Signal nameInput/
Output +−
WCS-76
< SYMPTOM DIAGNOSIS >
THE LIGHT REMINDER WARNING DOES NOT SOUND
SYMPTOM DIAGNOSIS
THE LIGHT REMINDER WARNING DOES NOT SOUND
DescriptionINFOID:0000000001722956
Light reminder warning does not sound even though headlamp is illuminated.
Diagnosis ProcedureINFOID:0000000001722957
1.CHECK COMBINATION SWITCH (LIGHTING SWITCH) OPERATION
Check that the headlamps operate normally by operating the combination switch (lighting switch).
Do they operate normally?
YES >> GO TO 2
NO >> Refer to EXL-5, "
Work Flow".
2.CHECK FRONT DOOR SWITCH (DRIVER SIDE) SIGNAL CIRCUIT
Perform inspection of the front door switch (driver side) signal circuit.
With Intelligent Key, without super lock: DLK-65, "
DRIVER SIDE : Diagnosis Procedure"
With Intelligent Key and super lock: DLK-296, "DRIVER SIDE : Diagnosis Procedure"
Without Intelligent Key and super lock: DLK-499, "DRIVER SIDE : Diagnosis Procedure"
Without Intelligent Key, with super lock: DLK-644, "DRIVER SIDE : Diagnosis Procedure"
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH (DRIVER SIDE)
Perform a unit inspection for the front door switch (driver side).
With Intelligent Key, without super lock: DLK-66, "
DRIVER SIDE : Component Inspection"
With Intelligent Key and super lock: DLK-297, "DRIVER SIDE : Component Inspection"
Without Intelligent Key and super lock: DLK-500, "DRIVER SIDE : Component Inspection"
Without Intelligent Key, with super lock: DLK-645, "DRIVER SIDE : Component Inspection"
Is the inspection result normal?
YES >> Replace the BCM. Refer to BCS-57, "Removal and Installation of BCM".
NO >> Replace the front door switch (driver side).
WCS
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
WCS-77
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOID:0000000001722958
Seat belt warning does not sound even though driver seat belt is not fastened.
Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis ProcedureINFOID:0000000001722959
1.CHECK WARNING CHIME OPERATION
1. With key removed from key switch and the front door (driver side) open, turn lighting switch to 1st or 2nd
position.
2. Return lighting switch to off position, and insert key into key switch.
Does warning chime sound for both steps?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK SEAT BELT WARNING LAMP
1. Turn ignition switch ON.
2. Check the operation of the seat belt warning lamp in the combination meter.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-57, "Removal and Installation of BCM".
NO >> GO TO 3
3.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
Perform inspection of the seat belt buckle switch circuit. Refer to WCS-24, "
DiagnosisProcedure".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK SEAT BELT BUCKLE SWITCH UNIT
Perform a unit inspection for the seat belt buckle switch. Refer to WCS-25, "
Component Inspection".
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-94, "Removal and Installation".
NO >> Replace the seat belt buckle switch (driver side).Seat belt fastened : OFF
Seat belt not fastened : ON
WCS-78
< SYMPTOM DIAGNOSIS >
THE KEY WARNING DOES NOT SOUND
THE KEY WARNING DOES NOT SOUND
DescriptionINFOID:0000000001722960
Key warning does not sound even though key is in ignition and front door (driver side) is opened.
Diagnosis ProcedureINFOID:0000000001722961
1.CHECK WARNING CHIME OPERATION
With key removed from the ignition and the front door (driver side) open, turn the lighting switch to 1st or 2nd
position.
Does warning chime sound?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK KEY SWITCH CIRCUIT
Perform inspection of the key switch circuit. Refer to WCS-26, "
DiagnosisProcedure" (with Intelligent Key) or
WCS-28, "
DiagnosisProcedure" (without Intelligent Key).
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK KEY SWITCH
Perform a unit inspection for the key switch. Refer to WCS-27, "
Component Inspection" (with Intelligent Key)
or WCS-29, "
Component Inspection" (without Intelligent Key).
Is the inspection result normal?
YES >> Replace the BCM. Refer to BCS-57, "Removal and Installation of BCM".
NO >> Replace the key switch and ignition knob switch (with Intelligent Key) or key switch and key lock
solenoid (without Intelligent Key).
WW-1
DRIVER CONTROLS
C
D
E
F
G
H
I
J
K
M
SECTION WW
A
B
WW
N
O
P
CONTENTS
WIPER & WASHER
BASIC INSPECTION ....................................3
DIAGNOSIS AND REPAIR WORKFLOW ..........3
Work Flow .................................................................3
FUNCTION DIAGNOSIS ...............................4
FRONT WIPER AND WASHER SYSTEM ..........4
System Diagram ........................................................4
System Description ...................................................4
Component Parts Location ........................................7
Component Description ............................................8
REAR WIPER AND WASHER SYSTEM ............9
System Diagram ........................................................9
System Description ...................................................9
Component Parts Location ......................................11
Component Description ..........................................11
HEADLAMP WASHER SYSTEM .......................12
System Diagram ......................................................12
System Description .................................................12
Component Parts Location ......................................13
Component Description ..........................................13
DIAGNOSIS SYSTEM (BCM) ............................14
COMMON ITEM .........................................................14
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
14
WIPER .......................................................................14
WIPER : CONSULT-III Function (BCM - WIPER) ....14
DIAGNOSIS SYSTEM (IPDM E/R) .....................16
Diagnosis Description .............................................16
CONSULT - III Function (IPDM E/R) .......................16
COMPONENT DIAGNOSIS .........................17
WIPER AND WASHER FUSE, FUSIBLE LINK
....
17
Description ..............................................................17
Diagnosis Procedure ...............................................17
FRONT WIPER MOTOR LO CIRCUIT ..............18
Component Function Check ....................................18
Diagnosis Procedure ...............................................18
FRONT WIPER MOTOR HI CIRCUIT ...............20
Component Function Check ....................................20
Diagnosis Procedure ...............................................20
FRONT WIPER AUTO STOP SIGNAL CIR-
CUIT ..................................................................
22
Component Function Check ....................................22
Diagnosis Procedure ...............................................22
FRONT WIPER MOTOR GROUND CIRCUIT ...24
Diagnosis Procedure ...............................................24
WASHER SWITCH ............................................25
Description ...............................................................25
Component Inspection .............................................25
LIGHT & RAIN SENSOR ..................................27
Description ...............................................................27
Diagnosis Procedure ...............................................27
REAR WIPER MOTOR CIRCUIT ......................28
Component Function Check ....................................28
Diagnosis Procedure ...............................................28
REAR WIPER AUTO STOP SIGNAL CIRCUIT
...
30
Component Function Check ....................................30
Diagnosis Procedure ...............................................30
HEADLAMP WASHER RELAY ........................32
Component Inspection .............................................32
HEADLAMP WASHER CIRCUIT ......................33
Component Function Check ....................................33
Diagnosis Procedure ...............................................33
FRONT WIPER AND WASHER SYSTEM ........36
FRONT WIPER AND WASHER SYSTEM
WW-5
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
WW
N
O
P
BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment- BCM calculates the intermittent operation delay interval from the vehicle speed signal received from the
wiper dial position and the combination meter with CAN communication.
IPDM E/R turns the integrated front wiper relay ON so that the front wiper is operated only once according to
the front wiper request signal (INT).
BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop
position signal received from IPDM E/R with CAN communication.
BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval after
the front wiper motor is stopped.
FRONT WIPER AUTO OPERATION (IF EQUIPPED)
BCM receives the wiping speed request signal from the rain sensor with the light and rain sensor serial link.
BCM judges the auto wiping condition depending on the wiping speed request signal and the rain sensor
sensitivity setting under front wiper AUTO operating condition.
BCM transmits the front wiper request signals (LO or HI) to the IPDM E/R through CAN communication line
according to the auto wiping condition.
NOTE:
When the wiper volume is turned down at 1 level with front wiper AUTO operating condition, BCM transmits
front wiper request signal (LO) to IPDM E/R with CAN communication.
Front wiper AUTO operating condition- Ignition switch ON
- Front wiper switch AUTO
Rain sensor sensitivity setting- BCM determines rain sensor sensitivity according to a wiper volume.
Wiper intermittent dial posi-
tionIntermittent
operation
intervalIntermittent operation delay Interval (s)
Vehicle speed
Vehicle stopped or
less than 5 km/h
(3.1 MPH)5 km/h (3.1 MPH)
or more or less
than 35 km/h (21.7
MPH)35 km/h (21.7
MPH) or more or
less than 65 km/h
(40.4 MPH)65 km/h (40.4
MPH) or more
1Short
↑
↓
Long0.8 0.6 0.4 0.24
2 4321.2
3107.553
4161284.8
5 2418127.2
6 3224169.6
7 4231.52112.6
JPLIA0094GB
WW-6
< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
IPDM E/R turns ON the integrated front wiper relay and front wiper HI relay according to the front wiper
request signal (LO or HI).
Light and rain sensor transmits rain sensor signal to BCM for HI operation immediately after sensing the
raindrops increase under the wiper motor LO operating with the front wiper switch AUTO.
FRONT WIPER AUTO STOP OPERATION
BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
IPDM E/R detects the front wiper auto stop signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper
motor returns to the stop position.
NOTE:
BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.
FRONT WIPER OPERATION LINKED WITH WASHER
BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
washer linked operating condition of the front wiper.
BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times
when the front washer switch OFF is detected.
Washer linked operating condition of front wiper- Ignition switch ON
- Front washer switch ON (0.4 second or more)
IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
The front and rear washer motor is grounded through the combination switch with the front washer switch
ON.
FRONT WIPER DROP WIPE OPERATION
BCM controls the front wiper to operate once according to the conditions of front wiper drop wipe operation.
Front wiper drop wipe operating condition- Ignition switch ON
- Front wiper switch OFF
Wiper intermittent dial posi-
tionSensitivity
1
High sensitivity
2
3
Medium−high sensitivity
4
5
Low−medium sensitivity
6
7 Low sensitivity
JPLIA0095GB