FRONT WIPER AND WASHER SYSTEM
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Revision: 2006 November2007 350Z
to front washer pump terminal 2.
Ground is supplied
to BCM terminal 52
through grounds M30 and M66,
to IPDM E/R terminals 38 and 60
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),
to combination switch terminal 12
through grounds M30 and M66.
LOW SPEED WIPER OPERATION
When the front 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 (LOW) with CAN communication line
from BCM terminals 39 and 40
to IPDM E/R terminals 48 and 49.
When the IPDM E/R receives front wiper request signal (LOW), it turns ON front wiper relay, located in the
IPDM E/R, power is supplied
to front wiper motor terminal 3
through IPDM E/R terminal 21 and front wiper high relay and front wiper relay.
Ground is supplied
to front wiper motor terminal 4
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With power and ground is supplied, front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION
When the front wiper switch is in high position, BCM detects high speed wiper ON signal by BCM wiper switch
reading function.
BCM sends front wiper request signal (HI) with CAN communication line
from BCM terminals 39 and 40
to IPDM E/R terminals 48 and 49.
When the IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay, located in IPDM E/
R, power is supplied
to front wiper motor terminal 2
through IPDM E/R terminal 31 and front wiper high relay and front wiper relay.
Ground is supplied
to front wiper motor terminal 4
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With power and ground is supplied, 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.
After 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 November2007 350Z
Wiper Dial Position Setting
Example: For wiper 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 dial position 1.
Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input
1.)
Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input
1.)
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 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 the 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 3, in order to continue wiper motor operation at low speed
When the wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected, and
ground is supplied
to IPDM E/R terminal 32
through front wiper motor terminals 1 and 4
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone),
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication.
When the BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN com-
munication line. IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WASHER OPERATION
When the wiper switch is in front wiper washer position, BCM detect front wiper washer signal by BCM wiper
switch reading function (Refer to WW-7, "
COMBINATION SWITCH READING FUNCTION" ).
Combination switch ground is supplied
to front washer pump terminal 1
through combination switch terminal 11
to combination switch terminal 12
through grounds M30 and M66.
With ground is supplied, front washer pump is operated.
When the BCM detects that front washer pump has operated for 0.4 seconds or longer, BCM operates front
wiper motor for low speed.
When the BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
Wiper dial positionIntermittent operation
intervalCombination switch
Intermittent operation
dial position 1Intermittent operation
dial position 2Intermittent operation
dial position 3
1 Short
↑
↓
LongON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF
