turn signal INFINITI FX35 2007 Service Manual

FRONT WIPER AND WASHER SYSTEM WW-5
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to front wiper relay, located in IPDM E/R

to front wiper high relay, located in IPDM E/R and

to CPU located in IPDM E/R,

through 10 A fuse (No. 84, located in IPDM E/R)

through IPDM E/R terminal 44

to combination switch terminal 14.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to combination switch terminal 12

through grounds M35, M45 and M85.
LOW SPEED WIPER OPERATION
When wiper switch is in LOW position, BCM detects low speed wiper ON signal by BCM wiper switch reading
function.
BCM sends front wiper request signal (LO) through CAN communication

from BCM terminals 39 and 40

to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay located in IPDM E/R,
power is supplied

through front wiper relay

through front wiper high relay

through IPDM E/R terminal 21

to front wiper motor terminal 1.
Ground is supplied

to front wiper motor terminal 2

through grounds E21, E50 and E51.
With power and ground supplied, the front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION
When wiper switch is in HI position, BCM detects high speed wiper ON signal by BCM wiper switch reading
function.
BCM sends front wiper request signal (HI) through CAN communication

from BCM terminals 39 and 40

to IPDM E/R terminals 48 and 49.
When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay (located in IPDM E/R),
power is supplied

through front wiper relay

through front wiper high relay

through IPDM E/R terminal 31

to front wiper motor terminal 4.
Ground is supplied

to front wiper motor terminal 2

through grounds E21, E50 and E51.
With power and ground supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Front wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent
operation dial position 1, 2, and 3) and vehicle speed signal.
Speed dependent wiper controlled mode can be changed by the function setting of CONSULT-ll or display.
During each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.

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FRONT WIPER AND WASHER SYSTEM
Revision: 2006 July 2007 FX35/FX45
Wiper Dial Position Setting
Example: For wiper intermittent dial position 1
Using combination switch reading function, BCM detects ON/OFF status of INT VOLUME 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper intermittent dial position 1.

INT VOLUME 1: ON (Continuity exists between combination switch output 3 and input 1.)

INT VOLUME 2: ON (Continuity exists between combination switch output 5 and input 1.)

INT VOLUME 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 STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, ground is provided

from IPDM E/R terminal 21

to front wiper motor terminal 1, in order to continue wiper motor operation at low speed.
When wiper arms reach base of windshield, front wiper motor terminals 5 and 2 are connected,
and Ground is supplied

to IPDM E/R terminal 32

through front wiper motor terminals 5 and 2

through grounds E21, E50 and E51.
Then the IPDM E/R sends auto stop operation signal to BCM through CAN communication.
When the BCM receives auto-stop operation signal, BCM sends wiper stop signal to IPDM E/R through CAN
communication.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WASHER OPERATION
When wiper switch is in front wiper washer position with ignition switch on, BCM detects front wiper switch is
on the washer position by BCM wiper switch reading function (Refer to WW-8, "
COMBINATION SWITCH
READING FUNCTION" ), combination switch (wiper switch) ground is supplied

to combination switch terminal 13

through front and rear washer pump terminal 1

to front and rear washer pump terminal 2

through combination switch terminal 11

to combination switch terminal 12

through grounds M35, M45 and M85.
With ground supplied, front and rear washer pump is operated.
When BCM detects that front and rear washer pump has operated for 0.4 seconds or linger, BCM operates
front wiper motor for low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
MIST OPERATION
When wiper switch is turned to MIST position, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under this condition, Refer to WW-5, "
LOW SPEED WIPER
OPERATION" .
Wiper intermittent dial position Intermittent operation
interval Combination switch
INT VOLUME 1 INT VOLUME 2 INT VOLUME 3
1 Short
↑
↓
Long ON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF

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Sample Operation: (When Wiper Switch Turned to LOW Position)

When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. At
this time if OUTPUT 1 transistor is activated, BCM detects that voltage changes in INPUT 3.

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
communication.

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.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
PKID0855E

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Revision: 2006 July 2007 FX35/FX45
Operation Mode
Combination switch reading function has operation modes shown below.
1. Normal status
–When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
2. Sleep status
–When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2, 3, and 4 send out ON signal every 60 ms, and accept input from lighting
switch system.
CAN Communication System DescriptionNKS00328
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-board multi-
plex 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
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.
CAN Communication UnitNKS00329
Refer to LAN-49, "CAN System Specification Chart" .
PKIC4919E

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Terminals and Reference Values for BCMNKS0032C
CAUTION:

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.

Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
11 7, "DATA MONITOR" .
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
4PU/W Combination
switch input 3 ON Lighting,
turn, wiper
switch
(Wiper inter-
mittent dial
position 4) OFF Approx. 0 V
Any of the conditions below

Front wiper switch MIST

Front wiper switch INT

Front wiper switch LO Approx. 1.0 V
5Y/R Combination
switch input 2 ON Lighting,
turn, wiper
switch OFF
(Wiper intermittent dial position 4) Approx. 0 V
Any of the conditions below

Front washer switch
(Wiper intermittent dial position 4)

Wiper intermittent dial position 1

Wiper intermittent dial position 5

Wiper intermittent dial position 6
Approx. 1.0 V
PKIB4959J
PKIB4959J

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FRONT WIPER AND WASHER SYSTEM
Revision: 2006 July 2007 FX35/FX45
6SB Combination
switch input 1 ON Lighting,
turn, wiper
switch OFF
(Wiper intermittent dial position 4) Approx. 0 V
Any of the conditions below

Front wiper switch HI
(Wiper intermittent dial position 4)

Wiper intermittent dial position 3
Approx. 1.0 V
Any of the conditions below

Wiper intermittent dial position 1

Wiper intermittent dial position 2 Approx. 1.7 V
Any of the conditions below

Wiper intermittent dial position 6

Wiper intermittent dial position 7 Approx. 0.8 V
32 GY/R Combination
switch output 5 ON Lighting,
turn, wiper
switch OFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below

Wiper intermittent dial position 1

Wiper intermittent dial position 2

Wiper intermittent dial position 6

Wiper intermittent dial position 7 Approx. 1.0 V
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4959J
PKIB4952J
PKIB4955J
PKIB4960J
PKIB4956J

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33 G Combination
switch output 4 ON Lighting,
turn, wiper
switch OFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below

Wiper intermittent dial position 1

Wiper intermittent dial position 5

Wiper intermittent dial position 6 Approx. 1.2 V
34 W/B Combination
switch output 3 ON Lighting,
turn, wiper
switch OFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below

Wiper intermittent dial position 1

Wiper intermittent dial position 2

Wiper intermittent dial position 3 Approx. 1.2 V
35 W/G Combination
switch output 2 ON Lighting,
turn, wiper
switch
(Wiper inter-
mittent dial
position 4) OFF
Approx. 7.2 V
Any of the conditions below

Front wiper switch INT

Front wiper switch HI Approx. 1.2 V
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J

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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS0032D
36 W/R Combination
switch output 1 ON Lighting,
turn, wiper
switch
(Wiper inter-
mittent dial
position 4) OFF
Approx. 7.2 V
Any of the conditions below

Front wiper switch MIST

Front wiper switch LO

Front washer switch Approx. 1.2 V
38 W/L Ignition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
21 P Low speed signal ON Wiper switch OFF Approx. 0 V
LOW Battery voltage
31 PU High speed signal ON Wiper switch OFF Approx. 0 V
HI Battery voltage
32 L Wiper auto - stop signal ON Wiper operating Battery voltage
Wiper stopped Approx. 0 V
38 B Ground ON — Approx. 0 V
44 OR Front and rear washer
pump power supply ON — Battery voltage
48 L CAN − H—— —
49 R CAN − L—— —
60 B Ground ON — Approx. 0 V

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6. CHECK CIRCUIT BETWEEN IPDM E/R AND BCM
Select “BCM” on CONSULT-II, and perform self-diagnosis for
“BCM”.
Displayed self
-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
CAN COMM CIRCUIT>>Check CAN communication line of BCM. Refer to BCS-13, "
CAN Communication Inspection
Using CONSULT-II (Self-Diagnosis)" .
Front Wiper Does Not Return to Stop PositionNKS0032J
1. CHECK FRONT WIPER STOP SIGNAL
With CONSULT-ll
Select “IPDM E/R” on CONSULT-II. With “DATA MONITOR”, make
sure that “WIP AUTO STOP” turns “ACT P” - “STOP P” linked with
wiper operation.
Without CONSULT-ll
GO TO 2.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
2. CHECK IPDM E/R
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Turn ignition switch ON.
4. Check voltage between front wiper harness connector E57 ter- minal 5 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
PKIA7627E
PKIA7614E
5 – Ground : Battery voltage.
PKIA7662E

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3. CHECK IPDM E/R
With CONSULT-ll
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “IPDM E/R” by CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
4. Touch “HI” screen.
5. Check voltage between IPDM E/R harness connector E7 termi- nal 31 and ground while front wiper HI is operating.
Without CONSULT-ll
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start up auto active test. Refer to PG-21, "
Auto Active Test" .
3. Check voltage between IPDM E/R harness connector E7 terminal 31 and ground while front wiper HI is operating.
OK or NG
OK >> Replace front wiper motor.
NG >> Replace IPDM E/R.
Only Front Wiper Intermittent Does Not OperateNKS0032M
1. CHECK COMBINATION SWITCH
With CONSULT-ll
1. Select “BCM” on CONSULT-II, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “FR WIPER INT”, turn ON-OFF according to
wiper switch operation.
Without CONSULT-ll
Refer to LT- 11 8 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (wiper switch) Refer to LT-
11 8 , "Combination Switch Inspection" .
Front Wiper Interval Time Is Not Controlled by Vehicle SpeedNKS0032N
1. CHECK FUNCTION OF COMBINATION METER
Confirm that speedometer operates normally.
Does front wiper operate normally?
YES >> GO TO 2.
NO >> Combination meter vehicle speed system malfunction. Refer to DI-19, "
Vehicle Speed Signal
Inspection" .
31 – Ground : Battery voltage.
31 – Ground : Battery voltage.
PKIA5198E
PKIB0110E