2003 NISSAN TEANA Ipdm terminal

WW-6
FRONT WIPER AND WASHER SYSTEM

Wiper Intermittent 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 interval from wiper intermittent dial position 1 and vehicle
speed, and sends wiper request signal (INT) to IPDM E/R.
AUTO STOP OPERATION
With the front wiper switch turned OFF, front wiper motor will continue to operate until front wiper arms reach
windshield base.
When front wiper arms are not located at base of windshield with front wiper switch OFF, power is provided

from IPDM E/R terminal 21

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

to IPDM E/R terminal 32

through front wiper motor terminal 5

through front wiper motor terminal 2

through grounds E1 and E31.
Then the IPDM E/R sends front wiper auto stop signal (ON) to BCM through CAN communication.
When the BCM receives front wiper auto stop signal (ON), BCM sends front wiper request signal (OFF) to
IPDM E/R through CAN communication.
IPDM E/R stops front wiper motor. Front wiper motor will then stop front wiper arms at the STOP position.
WASHER OPERATION
When the front washer switch is ON position, front washer pump operates, and BCM detects the FR WASHER
(ON) by BCM combination switch reading function. Combination switch ground is supplied

to front washer pump terminal 2

through combination switch terminal 11

to combination switch terminal 12

through grounds M71 and M72.
When BCM detects the FR WASHER (ON) for 0.4 seconds or longer, BCM sends front wiper request signal
(LO) through CAN communication. IPDM E/R operates front wiper motor at low speed.
When BCM detects the front washer switch is OFF, low speed wiper operation cycles approximately 2 times
and stops.
Wiper intermittent dial
positionIntermittent operation
intervalCombination switch
INT VOLUME 1 INT VOLUME 2 INT VOLUME 3
1Short
↑
↓
LongON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF

FRONT WIPER AND WASHER SYSTEM
WW-7
C
D
E
F
G
H
I
J
L
MA
B
WW

MIST OPERATION
When the front wiper switch is turned to the MIST position, front wiper low speed operation cycles once and
then stops.
For additional information about front wiper operation under this condition. Refer to WW-5, "
LOW SPEED
WIPER OPERATION" .
If the switch is held in the MIST position, low speed operation continues.
FAIL-SAFE FUNCTION
If an abnormality occurs in CAN communications, IPDM E/R holds the condition just before fail-safe status is
initiated until ignition switch is turned off. (If front wipers were operating in LO just before the initiation of fail-
safe status, they continue to operate in LO until ignition switch is turned OFF.)
COMBINATION SWITCH READING FUNCTION
Description

BCM reads combination switch (wiper switch) status, and controls front wipers according to the results.

BCM reads information of a maximum of 20 switches by combining 5 output terminals (OUTPUT 1-5) and
5 input terminals (INPUT 1-5).
Operation Description

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and allows current to flow in turn.

If any (one or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.

At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that the switch is ON.
SKIB8812E

WW-8
FRONT WIPER AND WASHER SYSTEM

BCM - Operation Table of Combination Switches
BCM reads operation status of combination switch using combinations shown in table below.
Sample Operation: (When Wiper Switch is Turned to LOW Position)

When wiper switch is turned to LOW position, FR 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 through
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,
electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by
human senses.
PKIA9949E
SKIB8814E

FRONT WIPER AND WASHER SYSTEM
WW-17
C
D
E
F
G
H
I
J
L
MA
B
WW

Terminals and Reference Values for IPDM E/RBKS001TM
36 G/WCombination
switch output 1ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below

Front wiper switch MIST position

Front wiper switch LO position

Front washer switch position
Approx. 1.2 V
38 RIgnition switch
(ON)ON — Battery voltage
39 L CAN-H — — —
40 P CAN-L — — —
42 Y/RBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4958J
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
21 L/R Low speed signal ONFront wiper switch
positionOFF Approx. 0 V
LO Battery voltage
31 L/B High speed signal ONFront wiper switch
positionOFF Approx. 0 V
HI Battery voltage
32 L/Y Front wiper motor auto-stop signal ONFront wiper operating Battery voltage
Front wiper stopped Approx. 0 V
38 B Ground — — Approx. 0 V
44 R/W Front washer pump power supply ON — Battery voltage
48 L CAN-H — — —
49 P CAN-L — — —
60 B Ground — — Approx. 0 V

FRONT WIPER AND WASHER SYSTEM
WW-23
C
D
E
F
G
H
I
J
L
MA
B
WW

4. CHECK CIRCUIT BETWEEN FRONT WIPER MOTOR AND GROUND
1. Turn ignition switch OFF.
2. Disconnect front wiper motor connector.
3. Check continuity between front wiper motor harness connector
and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT WIPER MOTOR
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector (A) and
front wiper motor harness connector (B).
3. Check continuity between IPDM E/R harness connector (A) and
ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
Front wiper
motor connectorTe r m i n a l
GroundContinuity
E42 2 Yes
PKIA6307E
AB
Continuity
Connector Terminal Connector Terminal
E721
E421
Ye s
31 4
A
GroundContinuity
Connector Terminal
E721
No
31
PKID0219E

WW-24
FRONT WIPER AND WASHER SYSTEM

6. CHECK IPDM E/R OUTPUT VOLTAGE
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
4. Touch “LO” or “HI” screen.
5. When front wiper (HI, LOW) is operating, check voltage between
IPDM E/R harness connector and ground.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start auto active test. Refer to PG-21, "
Auto Active Test" .
3. When front wiper (HI, LOW) is operating, check voltage between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace front wiper motor. Refer to WW-35, "Disassembly and Assembly of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTe r m i n a l
E721
GroundFront wiper stopped 0 V
Front wiper LOW operating Battery voltage
31Front wiper stopped 0 V
Front wiper HI operating Battery voltage
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTe r m i n a l
E721
GroundFront wiper stopped 0 V
Front wiper LOW operating Battery voltage
31Front wiper stopped 0 V
Front wiper HI operating Battery voltage
PKIC9883E

FRONT WIPER AND WASHER SYSTEM
WW-25
C
D
E
F
G
H
I
J
L
MA
B
WW

Front Wiper Does Not Return to Stop Position (After Front Wipers Operate for
10 Seconds, They Stop for 20 Seconds, and after repeating the operations five
times, they become inoperative)
BKS001TS
CAUTION:

When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front
wipers, IPDM E/R considers that front wipers are locked, and stops front wiper output. That
causes this symptom.

This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIP PROT” item shows
“BLOCK”.
1. CHECK BCM DATA MONITOR
With CONSULT-II
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 STOP” turns ON-OFF according to
front wiper operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> GO TO 2.
2. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT WIPER MOTOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3. Check continuity between IPDM E/R harness connector (A) and
front wiper motor harness connector (B).
4. Check continuity between IPDM E/R harness connector (A) and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.When front wiper is operating :FR WIPER STOP OFF
PKIB0110E
AB
Continuity
Connector Terminal Connector Terminal
E7 32 E42 5 Yes
A
GroundContinuity
Connector Terminal
E7 32 No
PKID0220E

WW-26
FRONT WIPER AND WASHER SYSTEM

3. CHECK IPDM E/R OUTPUT VOLTAGE
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “IPDM E/R” on CONSULT-II and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
4. Touch “LO” or “HI” screen.
5. When front wiper motor is stopped and while front wiper (HI,
LOW) is operating, check voltage between IPDM E/R harness
connector and ground.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start auto active test. Refer to PG-21, "
Auto Active Test" .
3. When front wiper motor is stopped and while front wiper (HI, LOW) is operating, check voltage between
IPDM E/R harness connector and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-35, "
Disassembly and Assembly of Front Wiper Drive
Assembly" .
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E7 32 GroundFront wiper operating Battery voltage
Front wiper stopped 0 V
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E7 32 GroundFront wiper operating Battery voltage
Front wiper stopped 0 V
PKID0221E