Infiniti G35 (V35) Sedan. Manual — part 1478
DIAGNOSIS AND REPAIR WORKFLOW
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>> GO TO 11.
11.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> INSPECTION END
NO
>> GO TO 3.
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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System Diagram
INFOID:0000000000962630
System Description
INFOID:0000000000962631
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
JPLIA0020GB
FRONT WIPER AND WASHER SYSTEM
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< FUNCTION DIAGNOSIS >
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• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication depending on the
front wiper INT operating condition and intermittent operation delay interval according to the wiper intermit-
tent dial position.
Front wiper INT operating condition
- Ignition switch ON
- Front wiper switch INT
• IPDM E/R turns ON the integrated front wiper relay 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 auto stop
signal received from IPDM E/R with CAN communication.
• BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval.
NOTE:
Front wiper intermittent operation can be set to the operation with vehicle speed by CONSULT-III. Refer to
WW-12, "WIPER : CONSULT - III Function (BCM - WIPER)"
.
Front wiper intermittent operation with vehicle speed
• BCM calculates the intermittent operation delay interval from the following
- Vehicle speed signal (received from the unified meter and A/C amp. with CAN communication)
- Wiper intermittent dial position
*: When without vehicle speed setting
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 (3.1MPH)
or more or less
than 35km/h (21.7
MPH)
35 km/h (21.7
MPH) or more or
less than 65km/h
(40.4 MPH)*
65 km/h
(40.4MPH) 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
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< FUNCTION DIAGNOSIS >
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 OFF.
• IPDM E/R turns the front wiper relay OFF when the ignition switch 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 2 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 when the front washer switch ON.
FRONT WIPER FAIL
−
SAFE OPERATION
When the front wiper auto stop circuit is malfunctioning, IPDM E/R performs the fail-safe function. Refer to
Component Parts Location
INFOID:0000000000962632
JPLIA0095GB
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