2008 NISSAN TEANA washer

WCS-62
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
141
(L/O)Ground Security indicator Output Security indicatorON 0 V
Blinking
11 . 3 V
OFF Battery voltage
142
(LG/B)GroundCombination switch
OUTPUT 5OutputCombination
switch
(Wiper intermit-
tent dial 4)All switch OFF 0 V
Lighting switch 1ST
10.7 V Lighting switch HI
Lighting switch 2ND
Turn signal switch RH
143
(L/W)GroundCombination switch
OUTPUT 1OutputCombination
switchAll switch OFF
(Wiper intermittent dial 4)0 V
Front wiper switch HI
(Wiper intermittent dial 4)
10.7 V Any of the conditions be-
low with all switch OFF
 Wiper intermittent dial
1
 Wiper intermittent dial
2
 Wiper intermittent dial
3
 Wiper intermittent dial
6
 Wiper intermittent dial
7
144
(G/B)GroundCombination switch
OUTPUT 2OutputCombination
switchAll switch OFF
(Wiper intermittent dial 4)0 V
Front washer switch ON
(Wiper intermittent dial 4)
10.7 V Any of the conditions be-
low with all switch OFF
 Wiper intermittent dial
1
 Wiper intermittent dial
5
 Wiper intermittent dial
6 Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +–
JPMIA0014GB
JPMIA0031GB
JPMIA0032GB
JPMIA0033GB

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DRIVER CONTROLS
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SECTION WW
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CONTENTS
WIPER & WASHER
BASIC INSPECTION ....................................3
DIAGNOSIS AND REPAIR WORKFLOW ..........3
Work Flow .................................................................3
FUNCTION DIAGNOSIS ...............................5
FRONT WIPER AND WASHER SYSTEM ..........5
System Diagram ........................................................5
System Description ...................................................5
Component Parts Location ........................................8
Component Description ............................................8
HEADLAMP WASHER SYSTEM .......................10
System Diagram ......................................................10
System Description .................................................10
Component Parts Location ......................................11
Component Description ..........................................11
DIAGNOSIS SYSTEM (BCM) ............................12
COMMON ITEM .........................................................12
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
12
WIPER .......................................................................13
WIPER : CONSULT-III Function (BCM - WIPER) ....13
DIAGNOSIS SYSTEM (IPDM E/R) .....................15
Diagnosis Description .............................................15
CONSULT-III Function (IPDM E/R) .........................17
COMPONENT DIAGNOSIS .........................20
WIPER AND WASHER FUSE, FUSIBLE LINK
....
20
Description ..............................................................20
Diagnosis Procedure ...............................................20
POWER SUPPLY AND GROUND CIRCUIT ......21
BCM (BODY CONTROL MODULE) ..........................21
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ................................................................
21
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) ..............................
21
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure ......................................................................
21
FRONT WIPER MOTOR LO CIRCUIT ..............23
Component Function Check ....................................23
Diagnosis Procedure ...............................................23
FRONT WIPER MOTOR HI CIRCUIT ...............25
Component Function Check ....................................25
Diagnosis Procedure ...............................................25
FRONT WIPER AUTO STOP SIGNAL CIR-
CUIT ..................................................................
27
Component Function Check ....................................27
Diagnosis Procedure ...............................................27
FRONT WIPER MOTOR GROUND CIRCUIT ...29
Diagnosis Procedure ...............................................29
WASHER SWITCH ............................................30
Description ...............................................................30
Component Inspection .............................................30
HEADLAMP WASHER RELAY ........................31
Component Inspection .............................................31
HEADLAMP WASHER CIRCUIT ......................32
Component Function Check ....................................32
Diagnosis Procedure ...............................................32
FRONT WIPER AND WASHER SYSTEM ........35
Wiring Diagram - FRONT WIPER AND WASHER
SYSTEM - ................................................................
35
HEADLAMP WASHER SYSTEM ......................39
Wiring Diagram -HEADLAMP WASHER SYS-
TEM- ........................................................................
39

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ECU DIAGNOSIS ........................................42
BCM (BODY CONTROL MODULE) ..................42
Reference Value .....................................................42
Wiring Diagram - BCM - .........................................65
Fail-safe ..................................................................71
DTC Inspection Priority Chart ..............................73
DTC Index ..............................................................74
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
76
Reference Value .....................................................76
Wiring Diagram - IPDM E/R - ..................................84
Fail-safe ..................................................................87
DTC Index ..............................................................89
SYMPTOM DIAGNOSIS .............................90
FRONT WIPER AND WASHER SYSTEM
SYMPTOMS .......................................................
90
Symptom Table ......................................................90
NORMAL OPERATING CONDITION ................92
Description ..............................................................92
FRONT WIPER DOES NOT OPERATE ............93
Description ..............................................................93
Diagnosis Procedure ..............................................93
HEADLAMP WASHER DOES NOT OPER-
ATE ....................................................................
95
Description ..............................................................95
Diagnosis Procedure ..............................................95
PRECAUTION .............................................96
PRECAUTIONS .................................................96
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
96
Precaution for Procedure without Cowl Top Cover ...96
ON-VEHICLE REPAIR ...............................97
HEADLAMP WASHER NOZZLE AND TUBE ...97
Exploded View ........................................................97
Hydraulic Layout .....................................................97
Removal and Installation .........................................97
Inspection ................................................................98
WASHER TANK ................................................99
Exploded View ........................................................99
Removal and Installation .........................................99
WASHER PUMP ...............................................100
Exploded View ......................................................100
Removal and Installation .......................................100
HEADLAMP WASHER PUMP .........................101
Exploded View ......................................................101
Removal and Installation .......................................101
FRONT WASHER NOZZLE AND TUBE ..........102
Hydraulic Layout ...................................................102
Removal and Installation .......................................102
Inspection and Adjustment ....................................102
FRONT WIPER ARM ........................................105
Exploded View ......................................................105
Removal and Installation .......................................105
Adjustment ............................................................105
FRONT WIPER DRIVE ASSEMBLY ................107
Exploded View ......................................................107
Removal and Installation .......................................107
Disassembly and Assembly ..................................108
FRONT WIPER AND WASHER SWITCH ........109
Exploded View ......................................................109

FRONT WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
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FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000003774860
System DescriptionINFOID:0000000003774861
OUTLINE
The front wiper is controlled by each function of BCM and IPDM E/R.
Control by BCM
• Combination switch reading function
 Front wiper control function
Control by IPDM E/R
 Front wiper control function
 Relay control function
FRONT WIPER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each
operating condition of the front wiper.
 IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high relay according to the front
wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.
FRONT WIPER LO OPERATION
 BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
front wiper LO operating condition.
Front wiper LO operating condition
- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
 IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
FRONT WIPER HI OPERATION
 BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the
front wiper HI operating condition.
Front wiper HI operating condition
- Ignition switch ON
- Front wiper switch HI
 IPDM E/R turns ON the integrated front wiper relay and the front wiper high relay according to the front wiper
request signal (HI).
FRONT WIPER INT OPERATION (LINKED WITH VEHICLE SPEED)
JSLIA0135GB

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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
 BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment- BCM calculates the intermittent operation delay interval from the following
 Vehicle speed signal (received from the combination meter with CAN communication)
 Wiper intermittent dial position
 IPDM E/R turns the integrated front wiper relay ON so that the front wiper is operated only once according to
the front wiper request signal (INT).
 BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop
position signal received from IPDM E/R with CAN communication.
 BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval after
the front wiper motor is stopped.
FRONT WIPER AUTO STOP OPERATION
 BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
 IPDM E/R detects the front wiper stop position signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
Wiper intermittent
dial positionIntermittent
operation
intervalIntermittent operation delay Interval (s)
Vehicle speed
0 – 5 km/h
(0 – 3.1 MPH)5 – 35 km/h
(3.1 – 21.7 MPH)35 – 65 km/h
(21.7 – 40.4 MPH)65 km/h (40.4 MPH)
or more
1
Short
↑
↓
Long0.8 0.6 0.4 0.24
24321.2
3107.553
4161284.8
5 2418127.2
6 3224169.6
7 4231.52112.6
JPLIA0094GB

FRONT WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
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 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 3 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 washer pump is grounded through the combination switch with the front washer switch ON.
FRONT WIPER FAIL−SAFE OPERATION
IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
PCS-31, "
Fail-safe".
JPLIA0410GB

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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
Component Parts Location
INFOID:0000000003774862
Component DescriptionINFOID:0000000003774863
1. Combination switch 2. Combination meter 3. Washer pump
4. IPDM E/R 5. Front wiper motor 6. BCM
A. Radiator core support (RH) B. Engine room (left side) C. Cowl top, left side of engine room
D. Behind combination meter
JPLIA1146ZZ
Part Description
BCM Judges each 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.

FRONT WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
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Combination switch
(Wiper & washer switch)Refer to BCS-8, "System Diagram".
Combination meter Transmits the vehicle speed signal to BCM with CAN communication.Part Description