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WIPER, WASHER & HORN

K ELECTRICAL

SECTION
WIPER, WASHER & HORN
WW B

E
CONTENTS
PRECAUTIONS ......................................................... 3 . Diagnosis Chart by Symptom ................................ 26 . F
Precautions for Supplemental Restraint System Front Wiper Does Not Operate .............................. 28 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Front Wiper Does Not Return to Stop Position (After
SIONER" ................................................................. 3
. Front Wiper Operate for 10 Seconds, They Stop for G
Maintenance Information ......................................... 3 . 20 Seconds, and After Repeating the Operations
RHD MODELS ..................................................... 3 . Five Times, They Become Inoperative) ............... .. 31 .
LHD MODELS ...................................................... 3 . Only Front Wiper Low Does Not Operate .............. 33 .
H
PrecautionsforProcedureswithoutCowlTopCover 3 ..... Only Front Wiper Hi Does Not Operate ................. 35 .
FRONT WIPER AND WASHER SYSTEM ................. 4 . Only Front Wiper Intermittent Does Not Operate ... 37
Components Parts and Harness Connector Loca- Only Front Wiper Auto Dose Not Operate ............. 38 .
tion .......................................................................... 4
. Front Wiper Interval Time Is Not Controlled by Vehi- I
System Description ................................................. 4 . cle Speed ............................................................... 40
.
OUTLINE .............................................................. 4
. Front Wiper Intermittent Operation Switch Position
LOW SPEED WIPER OPERATION ..................... 5 . Cannot Be Adjusted ............................................... 40 . J
HIGH SPEED WIPER OPERATION .................... 5 . WiperDoesNotWipeWhenFrontWasherOperates
INTERMITTENT OPERATION ............................. 5 . ... 41
AUTO WIPER OPERATION (MODELS WITH Front Wiper Does Not Stop .................................... 41 .
WW
LIGHT AND RAIN SENSOR) ............................... 6 . Removal and Installation of Front Wiper Arms,
AUTO STOP OPERATION ................................... 6 . Adjustment of Wiper Arms Stop Location .............. 42 .
MIST OPERATION ............................................... 6 . REMOVAL .......................................................... 42 .
WASHER OPERATION ........................................ 7 . INSTALLATION .................................................. 42 . L
FAIL-SAFE FUNCTION ........................................ 7 . ADJUSTMENT ................................................... 42 .
COMBINATIONSWITCHREADING FUNCTION 8 ..... Removal and Installation of Front Wiper Drive
CAN Communication ..............................................11 . Assembly ............................................................... 43
. M
SYSTEM DESCRIPTION ....................................11 . REMOVAL .......................................................... 43 .
CAN Communication Unit ......................................11 . INSTALLATION .................................................. 44 .
Schematic ............................................................. 12. Washer Nozzle Adjustment ................................... 44 .
Wiring Diagram -- WIPER -- ............................... 13 . Washer Tube Routing ............................................ 45 .
Terminals and Reference Values for BCM ............ 16 . Removal and Installation of Front Washer Nozzle... 45
Reference Values for BCM (Input) ........................ 20 . REMOVAL .......................................................... 45 .
Terminals and Reference Values for IPDM E/R .... 23 . INSTALLATION .................................................. 45 .
CONSULT-II Function (BCM) ................................ 24 . Inspection for Washer Nozzle ................................ 46 .
CONSULT-II BASIC OPERATION ...................... 24 . CHECK VALVE INSPECTION ............................ 46 .
WORK SUPPORT .............................................. 24 . InspectionofFrontWiperandWasherSwitchCircuit.. 46 .
DATA MONITOR ................................................ 24 . RemovalandInstallationofFrontWiperandWasher
ACTIVE TEST .................................................... 24 . Switch .................................................................... 46
.
CONSULT-II Function (IPDM E/R) ........................ 25 . REMOVAL .......................................................... 46 .
CONSULT-II BASIC OPERATION ...................... 25 . INSTALLATION .................................................. 46 .
DATA MONITOR ................................................ 25 . Removal and Installation of Washer Tank ............. 46 .
ACTIVE TEST .................................................... 25 . REMOVAL .......................................................... 46 .

WW-1
INSTALLATION ................................................... 47 . INSTALLATION ...................................................71 .
Removal and Installation of Front Washer Motor ... 47 CHECK VALVE INSPECTION ............................72 .
REMOVAL .......................................................... 47 . Inspection of Rear Wiper and Washer Switch Circuit ..72 .
INSTALLATION ................................................... 47 . Removaland Installation of Rear Wiper and Washer
Removal and Installation of Light and Rain Sensor 47 ... Switch ....................................................................72
.
REMOVAL .......................................................... 47 . Removaland Installation of Rear Wiper and Washer
INSTALLATION OF RAIN SENSOR ................... 47 . Tank .......................................................................72
.
INSTALLATION OF LIGHT AND RAIN SENSOR Removaland Installation of Rear Wiper and Washer
HOUSING ........................................................... 48 . Pump ......................................................................72
.
REAR WIPER AND WASHER SYSTEM ................. 49 . HEADLAMP WASHER .............................................73 .
Components Parts and Harness Connector Loca- Components Parts and Harness Connector Loca-
tion ......................................................................... 49
. tion .........................................................................73
.
System Description ................................................ 49 . System Description ................................................73 .
OUTLINE ............................................................ 49 . OUTLINE ............................................................73 .
REAR WIPER OPERATION ............................... 49 . HEADLAMP WASHER OPERATION ..................74 .
INTERMITTENT OPERATION ........................... 50 . CAN Communication .............................................74 .
AUTO STOP OPERATION ................................. 50 . CAN Communication Unit ......................................74 .
WASHER OPERATION ...................................... 50 . Wiring Diagram --HLC-- .......................................75 .
REAR WIPER REVERSE RANGE OPERATION Terminals and Reference Values for BCM .............77 .
(IF AUTO WIPER IS EQUIPPED) ...................... 50 . Reference Values for BCM (Input) .........................80 .
COMBINATIONSWITCHREADING FUNCTION 50 ... Terminals and Reference Values for IPDM E/R .....82 .
CAN Communication ............................................. 50 . CONSULT-II Function (BCM) .................................83 .
SYSTEM DESCRIPTION ................................... 50 . CONSULT-II Function (IPDM E/R) .........................83 .
CAN Communication Unit ...................................... 50 . Diagnosis Chart by Symptom ................................83 .
Wiring Diagram -- WIP/R -- ................................. 51 . Headlamp Washer Does Not Operate ...................84 .
WITHOUT RAIN SENSOR ................................. 51 . Removal and Installation for Headlamp Washer
Schematic .............................................................. 53. Nozzle ....................................................................88
.
WITH RAIN SENSOR ......................................... 53 . REMOVAL ...........................................................88 .
Wiring Diagram -- WIP/R -- ................................. 54 . INSTALLATION ...................................................88 .
WITH RAIN SENSOR ......................................... 54 . Removal and Installation for Washer Tank .............88 .
Terminals and Reference Values for BCM ............. 57 . Removal and Installation for Headlamp Washer
Reference Values for BCM (Input) ......................... 60 . Motor ......................................................................88
.
Terminals and Reference Values for IPDM E/R ..... 62 . Headlamp Washer Tube Layout ............................88 .
CONSULT-II Function (BCM) ................................. 63 . HORN .......................................................................89
.
Diagnosis Chart by Symptom ................................ 64 . Wiring Diagram --HORN-- ...................................89 .
Rear Wiper Does Not Operate .............................. 65 . Removal and Installation ...................................... ..90 .
Rear Wiper Does Not Return to Stop Position ....... 67 . REMOVAL ...........................................................90 .
Only Rear Wiper ON Does Not Operate ................ 68 . INSTALLATION ...................................................90 .
Only Rear Wiper Intermittent Does Not Operate ... 69 POWER SOCKET ....................................................91 .
Wiper Does Not Wipe WhenRear Washer Operates 69 ... Wiring Diagram --P/SCKT-- .................................91 .
Removal andInstallationofRear WiperArm,Adjust- Removal and Installation ...................................... ..92 .
ment of Wiper Arm Stop Location .......................... 69 . REMOVAL ...........................................................92 .
REMOVAL .......................................................... 69 . INSTALLATION ...................................................92 .
INSTALLATION ................................................... 69 . Removal and Installation of Console Power Socket...92
Removal and Installation of Rear Wiper Motor ...... 70 . REMOVAL ...........................................................92 .
REMOVAL .......................................................... 70 . INSTALLATION ...................................................92 .
INSTALLATION ................................................... 70 . Removal and Installation of Luggage Room Power
Rear Washer Nozzle Adjustment ........................... 71 . Socket ....................................................................92
.
Rear Washer Tube Layout ..................................... 71 . REMOVAL ...........................................................92 .
Removal and Installation of Rear Washer Nozzle... 71 INSTALLATION ...................................................92 .
REMOVAL .......................................................... 71 .

WW-2
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" BKS0010Y

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. D
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. E
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors. F
Maintenance Information BKS0028L

If any of following part is replaced, always replace with new* one. G
If it's not (or fail to do so), the electrical system may not be operated properly.
*: New one means a virgin control unit that has never been energized on-board.
RHD MODELS H
q BCM (Models without Intelligent Key system)
q Intelligent Key unit (Models with Intelligent Key system)
q ECM I
q IPDM E/R
q Combination meter
J
q EPS control unit
LHD MODELS
q BCM (Models without Intelligent Key system) WW
q Intelligent Key unit (Models with Intelligent Key system)
q ECM
L
Precautions for Procedures without Cowl Top Cover BKS0010Z

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc. M

PIIB3706J

WW-3
FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEM PFP:28810

Components Parts and Harness Connector Location BKS00111

MKIB2263E

: Vehicle front
1. IPDM E/R E10, E11, E12 2. BCM M57, M58, M59 3. Data link connector
[Engine room (left)] (View with instrument panel removed)
4. Front wiper motor E39 5. Front and rear washer motor E24 6. Combination switch (Wiper switch)
(View with front bumper removed) M38
7. Sun-visor 8. Light and rain sensor R2

System Description BKS00112

q Front wiper HI/LO relay and front wiper main relay are built into IPDM E/R.
q Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by BCM when switch is turned ON.
q BCM controls front wiper LO, HI, and INT (intermittent) operation.
q IPDM E/R operates wiper motor according to CAN communication signals from BCM.
OUTLINE
Power is supplied at all times
q through 20A fuse (No.48, located in the IPDM E/R)
q to front wiper main relay.
q through 20A fuse (No.61 and 62, located in the IPDM E/R)
q to IPDM E/R (CPU).
q through 40A fusible link (letter J, located in fuse and fusible link box)
q to BCM terminals 74 and 79.

WW-4
FRONT WIPER AND WASHER SYSTEM

When ignition switch ON or START position, power is supplied
q through 10A fuse [No.5, located in fuse block (J/B)] A
q to BCM terminal 24,
q through 10A fuse [No.3, located in fuse block (J/B)]
B
q to combination switch terminal 14, and
q to front wiper HI/LO relay, front wiper main relay and IPDM E/R (CPU)
Ground is supplied C
q to front wiper motor terminal 2 and,
q to IPDM E/R terminals 3 and 54
q through body grounds E28, E44 and E45, and D
q to combination switch terminal 12 and
q to BCM terminals 2 and 70
q through body grounds M21 and M66. E

LOW SPEED WIPER OPERATION
When front wiper switch is placed in LO position, BCM reads combination switch condition (Refer to WW-8, F
"COMBINATION SWITCH READING FUNCTION" ). And BCM sends front wiper request signal (LO) to IPDM
E/R with CAN communication line. When IPDM E/R receives front wiper request signal (LO), it turns ON front
wiper main relay (built into IPDM E/R).
Power is supplied G
q through front wiper main relay and front wiper HI/LO relay and
q through IPDM E/R terminal 23
H
q to front wiper motor terminal 1.
Ground is supplied
q to front wiper motor terminal 2, I
q through body grounds E28, E44 and E45.
With power and ground are supplied, the front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION J
When front wiper switch is placed in HI position, BCM reads combination switch condition (Refer toWW-8,
"COMBINATION SWITCH READING FUNCTION" ). And BCM sends front wiper request signal (HI) to IPDM
E/R with CAN communication line. When IPDM E/R receives front wiper request signal (HI), it turns ON front WW
wiper HI/LO relay and front wiper main relay (built into IPDM E/R).
Power is supplied
q through front wiper main relay and front wiper HI/LO relay and, L
q through IPDM E/R terminal 24
q to front wiper motor terminal 4.
Ground is supplied M
q to front wiper motor terminal 2
q through body grounds E28, E44 and E45.
With power and ground are supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Front wiper intermittent operation delay interval is determined by a combination of 3 switches (intermittent
operation dial position 1, 2, and 3) and by vehicle speed signal.
After each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.

WW-5
FRONT WIPER AND WASHER SYSTEM

Wiper Intermittent Dial Position Setting
Combination switch
Intermittent operation
Wiper intermittent dial position Intermittent operation Intermittent operation Intermittent operation
interval
dial position 1 dial position 2 dial position 3
1 Short ON ON ON
2 ON ON OFF
3 ON OFF OFF

4 OFF OFF OFF

5 OFF OFF ON
6 OFF ON ON
7 Long OFF ON OFF

Example: For wiper intermittent dial position 1
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper intermittent dial position 1.
q Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input
1.)
q Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input
1.)
q Intermittent operation dial position 3: ON (Continuity exists between combination switch output 4 and input
2.)
BCM determines front wiper intermittent operation delay interval from wiper intermittent dial position 1 and
vehicle speed, and sends wiper request signal (INT) to IPDM E/R.
AUTO WIPER OPERATION (MODELS WITH LIGHT AND RAIN SENSOR)
When front auto wiper switch is toggled to AUTO position (light and rain sensor equipped), BCM reads the cur-
rent combination switch condition/position (refer to WW-8, "COMBINATION SWITCH READING FUNCTION" )
and change light and rain sensor into 4stages of wiper sensitivity level.
When light and rain sensor detect rain with ignition switch ON and auto wiper switch in AUTO position the front
wiper will wipe the screen.
(Light and rain sensor will not react, if no raindrop is detected.)
q from light and rain sensor terminal 2
q to BCM terminal 63.
BCM send wiper request signal to IPDM E/R with CAN communication line. IPDM E/R operate front wiper.
Change the wiper speed by rainfall.
The light and rain sensor sensitivity is controlled by the wiper volume switch combined with front wiper and
washer switch and BCM.
AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach stop position.
When wiper arms are not located at stop position with wiper switch OFF, power is supplied
q from terminal 23 of the IPDM E/R
q to front wiper motor terminal 1, in order to continue wiper motor operation at low speed.
Ground is supplied
q to front wiper motor terminal 2
q through body grounds E28 and E44.
When wiper arms reach stop position, front wiper motor terminals 2 and 5 are connected.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto-stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
MIST OPERATION
When the front wiper switch is in mist position, low speed wiper operation cycles once and then stops.

WW-6
FRONT WIPER AND WASHER SYSTEM

For additional information about wiper operation under this condition, refer to WW-5, "LOW SPEED WIPER
OPERATION" . A
If the front wiper switch is held in the mist position, low speed wiper operation continues.
WASHER OPERATION
When front wiper switch is pulled to washer position, power is supplied B
q through combination switch terminal 13
q to washer motor terminal 1.
C
Ground is supplied
q to washer motor terminal 2
q through combination switch terminals 11 and 12, and D
q through body grounds M21 and M66.
With power and ground supplied, the washer motor operates, and at the same time,
When the wiper switch is pulled to the WASH position for 1 second or more. BCM sends front wiper request E
signal (low) to IPDM E/R with CAN communication line. And the front wiper motor operates in low speed for 3
times to clean wind shield and then an additional wiping action will occur after 3 seconds to remove the mois-
ture appear on the glass shortly after the wash/wipe action.
F
FAIL-SAFE FUNCTION
If CAN communication is malfunctioning, IPDM E/R maintains the condition of just before the fail-safe status
until ignition switch is turned OFF. (If wipers operate in LO just before the fail-safe status, operating in LO con- G
tinues until ignition switch turns OFF.)
Refer to PG-18, "Fail-safe Control" .
H

WW-7
FRONT WIPER AND WASHER SYSTEM

COMBINATION SWITCH READING FUNCTION
Description
q BCM reads combination switch (wiper) status, and controls related systems such as headlamps and wip-
ers, according to the results.
q BCM reads information for a maximum of 20 switches by combining 5 output terminals (OUTPUT 1-5) and
5 input terminals (INPUT 1-5).
Operation Description
q BCM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in
turn.
q If any (1 or more) switches are turned ON, the circuit of output terminals (OUTPUT 1-5) and input termi-
nals (INPUT 1-5) becomes active.
q At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of the input terminal (INPUT 1-5) corresponding to that switch changes, the interface in the BCM
detects a voltage change, and the BCM determines that the switch is ON.

MKIB2223E

BCM - Operation Table of Combination Switches
q BCM reads operation status of the combination switch using combinations shown in the table below.

PKIC0420E

WW-8
FRONT WIPER AND WASHER SYSTEM

Sample Operation: (When Wiper Switch is Turned to LOW Position)
q When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. At A
this time if OUTPUT 1 transistor is activated, BCM detects that voltage changes in INPUT 3.
q When BCM detects that voltage changes in INPUT 3 while OUTPUT 1 transistor is ON, it judges that front
wiper switch is in LOW position. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN B
communication.
q If BCM detects that voltage changes in INPUT 3 when OUTPUT 1 transistor is activated again, it recog-
nizes that wiper switch is still in LOW position. C

MKIB2225E
I
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON,
electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by
J
human senses.
Operation Mode
Combination switch reading function has operation modes shown below. WW
1. Normal status
q When BCM is not in sleep status, output terminals (OUTPUT 1-5) send out ON signal every 10 ms.

2. Sleep status L

WW-9
FRONT WIPER AND WASHER SYSTEM

q When BCM is in sleep status, BCM enters low power mode. Mean while out put terminals (OUTPUT 1-
5) send out ON signal every 60ms, and accept only input from light switch system.

PKIC0832E

Intermittent Operation
Wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent opera-
tion dial position 1, intermittent operation dial position 2, and intermittent operation dial position 3) and vehicle
speed signal.
During each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.

WW-10
FRONT WIPER AND WASHER SYSTEM

CAN Communication BKS00113

SYSTEM DESCRIPTION A
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other B
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
C
CAN Communication Unit BKS00114

Refer to LAN-27, "CAN Communication Unit" .
D

WW-11
FRONT WIPER AND WASHER SYSTEM

Schematic BKS00115

MKWA4279E

WW-12
FRONT WIPER AND WASHER SYSTEM

Wiring Diagram -- WIPER -- BKS00116

MKWA4280E

WW-13
FRONT WIPER AND WASHER SYSTEM

MKWA4281E

WW-14
FRONT WIPER AND WASHER SYSTEM

MKWA4282E

WW-15
FRONT WIPER AND WASHER SYSTEM

Terminals and Reference Values for BCM BKS00117

Measuring condition
Ter- Signal
Wire Igni-
minal Signal name input/ Reference value [V]
color tion Operation or condition
No. output
switch
2 B Ground -- ON -- 0

OFF
(Wiper intermittent dial position 4)

PKIB8643J

Approx. 1.2V
Any of several conditions below
Combination switch q Front fog lamp switch (Operates
7 BR Output ON
output 5 only front fog lamp switch)
(Wiper intermittent dial position 4)
q Rear fog lamp switch
(Wiper intermittent dial position 4)
q Rear wiper ON
(Wiper intermittent dial position 4)
q Wiper intermittent dial position 1
PKIB4956J
q Wiper intermittent dial position 2 Approx. 1.0V
q Wiper intermittent dial position 6
q Wiper intermittent dial position 7

OFF
(Wiper intermittent dial position 4)

PKIB4958J

Approx. 1.2V
Combination switch
8 L Output ON Any of several conditions below
output 3
q Lighting switch 2ND
(Wiper intermittent dial position 4)
q Lighting switch HI beam
(Operates only HI beam switch)
(Wiper intermittent dial position 4)
q Wiper intermittent dial position 1
PKIB4959J
q Wiper intermittent dial position 2
Approx. 1.0V
q Wiper intermittent dial position 3

Combination switch OFF
9 V Output ON
output 1 (Wiper intermittent dial position 4)

PKIB4958J

Approx. 1.2V

WW-16
FRONT WIPER AND WASHER SYSTEM

Measuring condition
Ter- Signal A
Wire Igni-
minal Signal name input/ Reference value [V]
color tion Operation or condition
No. output
switch
B
Any of several conditions below
q Turn signal switch to right
q Turn signal switch to left C
q Front wiper switch MIST
q Front wiper switch LO
q Front washer switch PKIB4959J D
Approx. 1.0V
q OFF
q Front wiper switch HI E
(Wiper intermittent dial position 4)
q Rear wiper switch INT
(Wiper intermittent dial position 4) F
Combination switch WW-20, "Reference Values for BCM
13 GB Input ON q Wiper intermittent dial position 1
input 1 (Input)"
q Wiper intermittent dial position 2
q Wiper intermittent dial position 3 G
q Wiper intermittent dial position 6
q Wiper intermittent dial position 7
H
q OFF
q Lighting switch AUTO
Combination switch q Rear fog lamp switch WW-20, "Reference Values for BCM
14 P Input ON I
input 3 q Front wiper switch MIST (Input)"
q Front wiper switch INT
q Front wiper switch LO J
q OFF
q Lighting switch 1ST
q Lighting switch 2ND WW
Combination switch WW-20, "Reference Values for BCM
15 W Input ON q Lighting switch HIGH beam
input 5 (Input)"
(Operates only HIGH beam
switch) L
q Turn signal switch to right
Input/
19 L CAN H -- -- --
output M
Ignition power sup-
24 O Input ON -- Battery voltage
ply

WW-17
FRONT WIPER AND WASHER SYSTEM

Measuring condition
Ter- Signal
Wire Igni-
minal Signal name input/ Reference value [V]
color tion Operation or condition
No. output
switch

OFF
(Wiper intermittent dial position 4)

PKIB4958J

Approx. 1.2V
Combination switch Any of several conditions below
27 GR Output ON
output 4 q Lighting switch AUTO
(Wiper intermittent dial position 4)
q Lighting switch 1ST
(The same result with
lighting switch 2ND)
(Wiper intermittent dial position 4)
q Wiper intermittent dial position 1
PKIB4959J
q Wiper intermittent dial position 5 Approx. 1.0V
q Wiper intermittent dial position 6

OFF
(Wiper intermittent dial position 4)

PKIB4958J

Combination switch Approx. 1.2V
28 G Output ON
output 2
Any of several conditions below
q Lighting switch 2ND
q Lighting switch PASSING
(Operates only PASSING switch)
q Front wiper switch INT
q Front wiper switch HI PKIB4959J

Approx. 1.0V
q OFF
q Front washer switch
(Wiper intermittent dial position 4)
q Rear wiper switch ON
Combination switch (Wiper intermittent dial position 4) WW-20, "Reference Values for BCM
33 R Input ON
input 2 q Rear washer switch ON (Input)"
(Wiper intermittent dial position 4)
q Wiper intermittent dial position 1
q Wiper intermittent dial position 5
q Wiper intermittent dial position 6

WW-18
FRONT WIPER AND WASHER SYSTEM

Measuring condition
Ter- Signal A
Wire Igni-
minal Signal name input/ Reference value [V]
color tion Operation or condition
No. output
switch
q OFF B
q Front fog lamp switch ON
Combination switch q Lighting switch 2ND WW-20, "Reference Values for BCM
34 Y Input ON C
input 4 q Lighting switch PASSING (Input)"
(Operates only PASSING switch)
q Turn signal switch to left
D
Input/
39 Y CAN L -- -- --
output

Light and rain sen-
63 BR Input ON -- F
sor signal

MKIB2017E

Approx. 8.9V G
70 B Ground -- ON -- 0
Room lamp power
73 V
supply
Output -- -- Battery voltage H
Power source
74 Y Input OFF -- Battery voltage
(Fusible link)
I
Power source
79 Y Input OFF -- Battery voltage
(Fusible link)

WW-19
FRONT WIPER AND WASHER SYSTEM

Reference Values for BCM (Input) BKS001KE

CAUTION:
q Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
q Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to WW-24, "DATA MONITOR" .
INPUT Condition and reference value
OFF Lighting switch 1ST Lighting switch 2ND

PKIB4956J PKIB8624J PKIB8639J

INPUT 5 Approx. 0.9V Approx. 1.5 - 2.0V Approx. 2.5 - 3.0V
(Wiper intermittent Lighting switch HI beam
dial position 4) Turn signal switch to right
(Operates only HI beam switch)

PKIB8625J
PKIB8644J
Approx. 1.5 - 2.0V
Approx. 1.5 - 2.0V
OFF Lighting switch 2ND Turn signal switch to left

PKIB4958J PKIB8628J PKIB8630J

Approx. 1.0V Approx. 1.5 - 2.0V Approx. 2.0V
INPUT 4
(Wiper intermittent Front fog lamp switch
Lighting switch PASSING
dial position 4) (Operates only front fog lamp
(Operates only PASSING switch)
switch)

PKIB8629J
PKIB8627J
Approx. 2.0V
Approx. 1.5 - 2.0V

WW-20
FRONT WIPER AND WASHER SYSTEM

INPUT Condition and reference value
A
OFF Lighting switch AUTO Front wiper switch INT

C
PKIB4958J PKIB8631J PKIB8632J

Approx. 1.0V Approx. 2.0V Approx. 2.0V
INPUT 3
Any of several conditions below
(Wiper intermittent D
q Front wiper switch LO Rear fog lamp switch
dial position 4)
q Front wiper switch MIST

E
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