Nissan Pathfinder (2012 year). Manual — part 625
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Fail Safe . . . . . . . . . . . . . . . . .
DTC Index . . . . . . . . . . . . . . . ..
WIRING DIAGRAM . . . . . . . . . .
FRONT WIPER AND WASHER SYSTEM . . .
Wiring Diagram . . . . . . . . . . . . . ...
REAR WIPER AND WASHER SYSTEM . . ...
Wiring Diagram . . . . . . . . . . . . . ...
SYMPTOM DIAGNOSIS . . . . . . . .
WIPER AND WASHER SYSTEM SYMPTOMS
...
Symptom Table . . . . . . . . . . . . . ..
NORMAL OPERATING CONDITION . . . .
Description . . . . . . . . . . . . . . . ..
FRONT WIPER DOES NOT OPERATE . . .
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
PRECAUTION . . . . . . . . . . . .
PRECAUTION . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
FRONT WIPER AND WASHER SYSTEM . .
Removal and Installation . . . . . . . . . . .
Washer Nozzle Adjustment . . . . . . . . . .
REAR WIPER AND WASHER SYSTEM . . ...
Removal and Installation . . . . . . . . . . .
Rear Washer Nozzle Adjustment . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . ..
August 2012
2012 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
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< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000007355258
DETAILED FLOW
1.
LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.
VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to
PCS-9, "Diagnosis Description"
.
>> GO TO 3
3.
GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to
.
>> GO TO 4
4.
REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 5
5.
FINAL CHECK
Final check.
Is inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
GI-37, "Intermittent Incident"
.
August 2012
2012 Pathfinder
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< SYSTEM DESCRIPTION >
FRONT WIPER AND WASHER SYSTEM
SYSTEM DESCRIPTION
FRONT WIPER AND WASHER SYSTEM
System Diagram
INFOID:0000000007355259
System Description
INFOID:0000000007355260
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)
ABLIA2789GB
August 2012
2012 Pathfinder
FRONT WIPER AND WASHER SYSTEM
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< SYSTEM DESCRIPTION >
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• 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 vehicle speed signal received from the
wiper dial position and the combination meter with CAN communication.
• 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 auto stop signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
Wiper intermittent dial posi-
tion
Intermittent
operation
interval
Intermittent operation delay Interval (s)
Vehicle speed
Vehicle stopped or
less than 5 km/h
(3.1 MPH)
5 km/h (3.1 MPH)
or more or less
than 35 km/h (21.7
MPH)
35 km/h (21.7
MPH) or more or
less than 65 km/h
(40.4 MPH)
65 km/h (40.4
MPH) or more
1
Short
↑
↓
Long
0.8
0.6
0.4
0.24
2
4
3
2
1.2
3
10
7.5
5
3
4
16
12
8
4.8
5
24
18
12
7.2
6
32
24
16
9.6
7
42
31.5
21
12.6
JPLIA0094GB
August 2012
2012 Pathfinder
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< 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 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 front and rear washer motor is grounded through the combination switch with the front washer switch
ON.
FRONT WIPER DROP WIPE OPERATION
• BCM controls the front wiper to operate once according to the conditions of front wiper drop wipe operation.
Front wiper drop wipe operating condition
- Ignition switch ON
- Front wiper switch OFF
- Front washer switch OFF
• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication so that the front
wiper operate once three seconds after front wiper operation linked with washer.
• IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
FRONT WIPER FAIL
−
SAFE OPERATION
• IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
.
JPLIA0095GB
August 2012
2012 Pathfinder
FRONT WIPER AND WASHER SYSTEM
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< SYSTEM DESCRIPTION >
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Component Parts Location
INFOID:0000000007355261
Component Description
INFOID:0000000007355262
1.
BCM M18, M20 (view with instru-
ment lower panel LH removed)
2.
Front and rear washer motor E105 3.
Washer fluid reservoir
4.
Front wiper motor E23 (view with
cowl top removed)
5.
IPDM E/R E121, E122, E124
6.
Combination switch M28 (wiper and
washer switch)
ALLIA0617ZZ
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.
Combination switch
(Wiper and washer
switch)
.
Combination meter
Transmits the vehicle speed signal to BCM with CAN communication.
Front wiper motor
• IPDM E/R controls front wiper operation.
• Sends wiper stop signal to IPDM E/R.
Front and rear washer
motor
Pumps washer fluid to the front or rear in wash mode.
August 2012
2012 Pathfinder
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< SYSTEM DESCRIPTION >
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM
System Diagram
INFOID:0000000007355263
System Description
INFOID:0000000007355264
OUTLINE
The rear wiper is controlled by each function of BCM.
Control by BCM
• Combination switch reading function
• Rear wiper control function
REAR WIPER BASIC OPERATION
• BCM detects the combination switch condition by the combination switch reading function.
• BCM detects the glass hatch ajar switch open before supplying power to the rear wiper.
• BCM controls the rear wiper to start or stop.
REAR WIPER ON OPERATION
• BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.
Rear wiper ON operating condition
- Ignition switch ON
- Rear wiper switch ON
REAR WIPER INT OPERATION
• BCM supplies power to the rear wiper motor according to the INT operating condition.
Rear wiper INT operating condition
- Ignition switch ON
- Rear wiper switch INT
• BCM controls the rear wiper to operate once.
• BCM detects the rear wiper motor stopping position.
• BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.
REAR WIPER AUTO STOP OPERATION
AWLIA1911GB
JPLIA0165GB
August 2012
2012 Pathfinder
REAR WIPER AND WASHER SYSTEM
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< SYSTEM DESCRIPTION >
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• BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
• BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
• When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear
wiper motor until it returns to the stopping position.
NOTE:
BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.
REAR WIPER OPERATION LINKED WITH WASHER
• BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear
wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three
times.
Washer linked operating condition of rear wiper
- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
• Front and rear washer motor becomes grounded through the combination switch (wiper and washer switch)
when the rear washer switch is turned ON.
REAR WIPER DROP WIPE OPERATION
• BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.
Rear wiper drop wipe operating condition
- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
• BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer
interlocking operation of the rear wiper.
REAR WIPER FAIL
−
SAFE OPERATION
BCM performs the fail-safe function when the rear wiper auto stop circuit is malfunctioning. Refer to
JPLIA0166GB
August 2012
2012 Pathfinder
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