2003 NISSAN TEANA relay

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FRONT WIPER AND WASHER SYSTEM

FRONT WIPER AND WASHER SYSTEMPFP:28810
Components Parts and Harness Connector LocationBKS001TF
System DescriptionBKS001TG

BCM (Body Control Module) controls front wiper low, high and intermittent operation.

IPDM E/R (Intelligent Power Distribution Module Engine Room) operates front wiper motor according to
CAN communication signals from BCM.
Power is supplied at all times

to ignition relay (located in IPDM E/R), from battery direct,

through 50 A fusible link (letter M, located in fuse and fusible link block)

to BCM terminal 55,

through 15 A fuse [No. 17, located in fuse block (J/B)]

to BCM terminal 42,

through 20 A fuse (No. 73, located in IPDM E/R)

to front wiper relay (located in IPDM E/R),

through 15 A fuse (No. 78, located in IPDM E/R)

to CPU (central processing unit) located in IPDM E/R,

through 15 A fuse (No. 71, located in IPDM E/R)

to CPU located in IPDM E/R.
When the ignition switch ON or START position, power is supplied

to ignition relay (located in IPDM E/R),

through 10 A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,
PKIA9954E

FRONT WIPER AND WASHER SYSTEM
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through 10 A fuse (No. 84, located in IPDM E/R)

to front washer pump terminal 1.
Ground is supplied

to BCM terminal 52 and

to combination switch terminal 12

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
LOW SPEED WIPER OPERATION
When the front wiper switch is in LO position, BCM detects the FR WIPER LOW (ON) by BCM combination
switch reading function. BCM sends front wiper request signal (LO) through CAN communication.
When receiving front wiper request signal (LO), IPDM E/R turns ON front wiper relay in IPDM E/R. IPDM E/R
supplies power

through IPDM E/R terminal 21, front wiper high relay and front wiper relay

to front wiper motor terminal 1.
Ground is supplied

to front wiper motor terminal 2

through grounds E1 and E31.
With power and ground is supplied, the front wiper motor operates at low speed.
HIGH SPEED WIPER OPERATION
When the front wiper switch is in HI position, BCM detects the FR WIPER HI (HI) by BCM combination switch
reading function. BCM sends front wiper request signal (HI) through CAN communication.
When receiving front wiper request signal (HI), IPDM E/R turns ON front wiper relay and front wiper high relay
in IPDM E/R. IPDM E/R supplies power

through IPDM E/R terminal 31, front wiper high relay and front wiper relay

to front wiper motor terminal 4.
Ground is supplied

to front wiper motor terminal 2

through grounds E1 and E31.
With power and ground is supplied, the front wiper motor operates at high speed.
INTERMITTENT OPERATION
Front wiper intermittent operation is determined from a combination of 3 switches (INT VOLUME 1, 2, and 3)
and vehicle speed signal*.
When the front wiper switch is in INT position, BCM detects the FR WIPER INT (ON) and ON/OFF status of
the INT VOLUME 1, 2, and 3 by BCM combination switch reading function. BCM judges the condition of wiper
intermittent dial position by ON/OFF status of INT VOLUME 1, 2, and 3 .
BCM sends front wiper request signal (1LOW) at certain intervals through CAN communication. The interval is
calculated by wiper intermittent dial position and vehicle speed signal received from combination meter
through CAN communication.
When receiving front wiper request signal (1LOW), IPDM E/R turns ON front wiper relay in IPDM E/R, and
operates front wiper motor at low speed. Then IPDM E/R detects front wiper arms reach to the stop position
via wiper auto stop signal from front wiper motor, IPDM E/R turns OFF front wiper relay, and sends front wiper
auto stop signal (ON) to BCM through CAN communication, and controls intermittent operation.

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FRONT WIPER AND WASHER SYSTEM

How to Perform Trouble DiagnosesBKS001TN
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-4, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-18, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckBKS001TO
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to WW-11, "Wiring Diagram — WIPER —" .
OK or NG
OK >> GO TO 2
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBatteryM
17
Ignition switch ON or START 1
Front wiper motor, front wiper relay, front wiper high relay Battery 73
Front washer pump Ignition switch ON or START 84
Terminals Ignition switch position
(+)
(−)OFF ON
BCM connector Terminal
M3 38
GroundApprox. 0 V Battery voltage
M442 Battery voltage Battery voltage
55 Battery voltage Battery voltage
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FRONT WIPER AND WASHER SYSTEM

6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
Display Item List
NOTE:
This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “WIPER” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested, and check operation of the selected item.
4. During operation check, touching “OFF” deactivates the operation.
Display Item List
NOTE:
1. The intermittent operation is operated at low speed only one time
2. This item is displayed, but no operation is performed.Monitor item Contents
IGN ON SW “ON/OFF”Displays status (ignition switch IGN position: ON/other: OFF) of ignition switch judged from
the ignition switch signal.
IGN SW CAN “ON/OFF”Displays status (ignition switch IGN position: ON/other: OFF) of ignition switch judged from
the ignition switch signal (CAN communication lines).
FR WIPER HI “ON/OFF”Displays status (front wiper switch high position: ON/other: OFF) of front wiper high switch
judged from the front wiper switch signal.
FR WIPER LOW “ON/OFF”Displays status (front wiper switch low position: ON/other: OFF) of front wiper low switch
judged from the front wiper switch signal.
FR WIPER INT “ON/OFF”Displays status (front wiper switch intermittent position: ON/other: OFF) of front wiper intermit-
tent switch judged from the front wiper switch signal.
FR WASHER SW “ON/OFF”Displays status (front washer switch ON position: ON/other: OFF) of front washer switch
judged from the front wiper switch signal.
INT VOLUME “1 - 7”Displays status (wiper intermittent dial position setting 1- 7) of intermittent volume switch
judged from the front wiper switch signal.
FR WIPER STOP “ON/OFF”Displays status (front wiper stop position: ON/move: OFF) of front wiper motor stop judged
from the front wiper auto stop signal.
VEHICLE SPEED “km/h” Displays status vehicle speed as judged from vehicle speed signal.
RR WIPER ON
NOTE “OFF” —
RR WIPER INT
NOTE“OFF” —
RR WASHER SW
NOTE“OFF” —
RR WIPER STOP
NOTE“OFF” —
H/L WASH SW “ON/OFF”Displays status (headlamp washer switch ON position: ON/other: OFF) of headlamp washer
switch judged from headlamp washer switch signal.
CONSULT-II screen
displayTest item Description
FR WIPERFront wiper (HI, LO, INT)
operation
NOTE1Front wiper relay and front wiper high relay are operated by switching
operation (OFF: OFF, HI: high speed, LO: low speed, INT: intermittent).
RR WIPER
Rear wiper operation
NOTE2—
HEAD LAMP WASHER Headlamp washer operation Headlamp washer relay can be operated by any ON-OFF operation.

FRONT WIPER AND WASHER SYSTEM
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CONSULT-II Functions (IPDM E/R)BKS001TQ
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II OPERATION
Refer to GI-34, "CONSULT-II Start Procedure" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM”
screen.
3. When “ALL SIGNALS” is selected, all items will be monitored. When “MAIN SIGNALS” is selected, pre-
determined items will be monitored. When “SELECTION FROM MENU” is selected, touch individual items
to be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
Display Item List
NOTE:
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, the display may not be correct.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch “FRONT WIPER” on “SELECT TEST ITEM” screen.
3. Touch item to be tested, and check operation.
4. Touch “OFF” while testing to stop the operation.
Diagnosis mode Description
SELF- DIAG RESULTS Refer to PG-19, "
SELF-DIAG RESULTS" .
DATA MONITOR The input/output data of the IPDM E/R is displayed in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST IPDM E/R sends a drive signal to electronic components to check their operation.
ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select items and monitors them.
Monitor item Contents
HL WASHER REQ “OFF/ON”Status (headlamp washer switch ON position: ON/others: OFF) of headlamp washer switch
judged from headlamp washer request signal through CAN communication is displayed.
FR WIP REQ“STOP/1LOW/
LOW/HI”Status (wiper switch OFF position: STOP/INT position: 1 LOW/LO or MIST position: LOW/HI
position: HI) of front wiper switch judged from front wiper request signal through the CAN
communication is displayed.
WIP AUTO STOP “ACT P/STOP P”Status (front wiper operate: ACT P/stopped: STOP P) judged from front wiper auto stop signal
is displayed.
WIP PROT “OFF/BLOCK”Status (front wiper not protect: OFF/protect: BLOCK) judged from front wiper operation status
is displayed.
CONSULT-II
screen displayTest item Description
FRONT WIPER Front wiper (HI, LO) operationFront wiper relay and front wiper high relay are operated by switching operation
(OFF: OFF, HI: high speed, LO: low speed).

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HEADLAMP WASHER

HEADLAMP WASHERPFP:28620
Components Parts and Harness Connector LocationBKS002CB
System DescriptionBKS002CC

BCM (Body Control Module) controls headlamp washer operation.

IPDM E/R (Intelligent Power Distribution Module Engine Room) operates headlamp washer pump accord-
ing to CAN communication signal from BCM.
OUTLINE
Power is supplied at all times

to ignition relay (located in IPDM E/R), from battery direct,

through 15A fuse (No. 71, located in IPDM E/R)

to CPU (central processing unit) in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU in IPDM E/R,

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM terminal 55,

through 30A fusible link (letter J, located in fuse and fusible link block)

to headlamp washer relay terminals 1 and 3.
With the ignition switch in the ON or START position, power is supplied

to ignition relay (located in IPDM E/R),

through 10A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38.
With the ignition switch in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 52

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
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HEADLAMP WASHER
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When the headlamp washer switch is ON, ground is supplied

to BCM terminal 10

through headlamp washer switch terminal 1

through headlamp washer switch terminal 2

through grounds M71 and M72.
HEADLAMP WASHER OPERATION
When the headlamp washer switch is in ON position with the ignition switch in ON position and the lighting
switch in 2ND position, BCM detects the headlamp washer switch ON signal. It also detects the HEAD LAMP1
and 2 (ON) by BCM combination switch reading function. BCM judges that the condition of headlamp washer
operation meets. And then, BCM sends headlamp washer request signal (ON) through CAN communication.
When receiving headlamp washer request signal (ON), IPDM E/R turns ON headlamp washer relay. And then,
headlamp washer pump operates.
Power is supplied

through headlamp washer relay terminal 2

to IPDM E/R terminal 58,

through headlamp washer relay terminal 5

to headlamp washer pump terminal 1.
Ground is supplied

to headlamp washer pump terminal 2

through grounds E1 and E31.
With power and ground supplied, headlamp washer operates.
INTERLOCKED OPERATION WITH FRONT WINDOW WASHER
When the front window washer switch is in ON position at the every first time of ignition switch ON, with the
ignition switch in ON position and the lighting switch in 2ND position, BCM detects the FR WASHER (ON) and
the HEAD LAMP 1 and 2 (ON) by BCM combination switch reading function. BCM judges that the condition of
headlamp washer operation meets. And then, BCM sends headlamp washer request signal (ON) through
CAN communication.
When receiving headlamp washer request signal (ON), IPDM E/R turns ON headlamp washer relay. And then,
headlamp washer pump operates.
COMBINATION SWITCH READING FUNCTION
Refer to WW-7, "COMBINATION SWITCH READING FUNCTION" .

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HEADLAMP WASHER

Terminals and Reference Values for IPDM E/RBKS002CF
How to Proceed with Trouble DiagnosisBKS002CG
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-40, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-49, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
39 L CAN-H — — —
40 P CAN-L — — —
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
38 B Ground ON — Approx. 0 V
48 L CAN− H—— —
49 P CAN− L—— —
58 G/W Headlamp washer relay signal ONHeadlamp washer
switch positionOFF Battery voltage
ON Approx. 0 V
60 B Ground ON — Approx. 0 V