Nissan Maxima. Manual - part 1221

WW-8

< SYSTEM DESCRIPTION >

FRONT WIPER AND WASHER SYSTEM

• 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 2 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 washer motor is grounded through the combination switch when the front washer switch is ON.

FRONT WIPER FAIL

−SAFE OPERATION

When the front wiper auto stop circuit is malfunctioning, IPDM E/R performs the fail-safe function. Refer to

PCS-25, "Fail Safe"

.

JPLIA0095GB

FRONT WIPER AND WASHER SYSTEM

WW-9

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

WW

N

O

P

Component Parts Location

INFOID:0000000010048942

1.

Front washer motor E226 (view with 
front bumper cover removed)

2.

Combination switch (wiper and wash-
er switch) M28

3.

Combination meter M24

4.

Front wiper motor E25

5.

IPDM E/R E17, E18, E200

6.

BCM M16, M17, M18, M19 (view with 
instrument panel removed)

ALLIA0910ZZ

WW-10

< SYSTEM DESCRIPTION >

FRONT WIPER AND WASHER SYSTEM

Component Description

INFOID:0000000010048943

Part

Description

BCM

• Judges the switch status by the combination switch reading function.
• Requests (with CAN communication) the front wiper relay and the front wiper high 

relay ON to IPDM E/R.

IPDM E/R

• Controls the integrated relay according to the request (with CAN communication) 

from BCM.

• Performs the auto stop control of the front wiper.

Combination switch
(Wiper and washer switch)

Refer to 

WW-6, "System Description"

.

Combination meter

Transmits the vehicle speed signal to BCM with CAN communication.

Front wiper motor

• Drives windshield wipers in HI or LO mode.
• Sends wiper stop signal to IPDM E/R.

Front washer motor

Pumps windshield washer fluid to windshield in wash mode.

DIAGNOSIS SYSTEM (BCM)

WW-11

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

WW

N

O

P

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000010053910

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

WIPER

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Work support

Changes the setting for each system function.

Configuration

• Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.

CAN Diag Support Mntr

Monitors the reception status of CAN communication viewed from BCM.

System

Sub System

Direct Diagnostic Mode

E

cu

 Id

en

tifi

ca

tio

n

Se

lf Di

ag

no

st

ic Re

su

lt

Da

ta

 Mo

ni

tor

A

cti

ve

 T

est

W

o

rk support

Co

nf

igu

rat

ion

CA

N Diag

 Su

pp

ort Mn

tr

Door lock

DOOR LOCK

×

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEADLAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Trunk open

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×