Infiniti QX4. Electrical System (2003 year). Manual — part 12
MEL612P
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WIPER AND WASHER
Wiring Diagram — WIP/R — (Cont’d)
EL-181
Trouble Diagnoses
NBEL0325
REAR WIPER MOTOR INSPECTION TABLE
NBEL0325S01
(Data are reference values.)
Terminal No.
Item
Condition
Voltage
(Approximate value)
2
ON switch
Rear wiper switch
ON
Less than 1V
OFF or INT
Battery voltage
3
Intermittent switch
Rear wiper switch
INT
Less than 1V
OFF, ON or WASH
Battery voltage
4
Power supply (ACC)
—
Battery voltage
5
Washer switch
Rear wiper switch
WASH
Less than 1V
OFF, ON or INT
Battery voltage
6
Glass hatch switch
Glass hatch
Open
Less than 1V
Closed
Battery voltage
8
Ground
—
—
NOTE:
Power to the rear wiper motor will be interrupted when the rear glass hatch is opened. In that case, conduct
the inspection of the rear wiper motor with the rear glass hatch closed, unless otherwise indicated.
MEL066G
Removal and Installation
NBEL0326
WIPER ARMS
NBEL0326S01
1.
Prior to wiper arm installation, turn on wiper switch to operate
wiper motor and then turn it “OFF” (Auto Stop).
2.
Install wiper arm to portion A as in figure below and tighten
wiper arm nut to specification.
3.
Then, set wiper arm to portion B.
: 13 - 18 N·m (1.3 - 1.8 kg-m, 9 - 13 ft-lb)
SEL024J
쐌
Before reinstalling wiper arm, clean up the pivot area as
illustrated. This will reduce possibility of wiper arm loose-
ness.
REAR WIPER AND WASHER
Trouble Diagnoses
EL-182
SEL241P
MEL034G
Washer Nozzle Adjustment
NBEL0327
쐌
Adjust washer nozzle with suitable tool as shown in the figure
at left.
Adjustable range:
±
10° (In any direction)
MEL067G
Washer Tube Layout
NBEL0328
SEL411H
Check Valve
NBEL0329
쐌
A check valve is provided in the washer fluid line. Be careful
not to connect check valve to washer tube in the wrong direc-
tion.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WIPER AND WASHER
Washer Nozzle Adjustment
EL-183
Wiring Diagram — HORN —
NBEL0330
MEL446O
HORN
Wiring Diagram — HORN —
EL-184
Wiring Diagram — CIGAR —
NBEL0331
MEL320Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
CIGARETTE LIGHTER
Wiring Diagram — CIGAR —
EL-185
Wiring Diagram — CLOCK —
NBEL0332
MEL814L
CLOCK
Wiring Diagram — CLOCK —
EL-186
Component Parts and Harness Connector
Location
NBEL0333
SEL674YA
System Description
NBEL0334
The rear window defogger system is controlled by the smart entrance control unit. The rear window defogger
operates only for approximately 15 minutes.
Power is supplied at all times
쐌
to rear window defogger relay terminal 3
쐌
through 20A fuse (No. 56, located in the fuse and fusible link box) and
쐌
to rear window defogger relay terminal 6
쐌
through 20A fuse (No. 57, located in the fuse and fusible link box)
쐌
to smart entrance control unit terminal 49
쐌
through 7.5A [No. 24, located in fuse block (J/B)]
With the ignition switch in the ON or START position, power is supplied
쐌
through 7.5A fuse [No. 11, located in the fuse block (J/B)]
쐌
to the rear window defogger relay terminal 1, and
쐌
to smart entrance control unit terminal 27.
Ground is supplied
쐌
to terminal 1 of the rear window defogger switch
쐌
through body grounds M4, M66 and M147 (with NAVI),
쐌
to terminal 32 of the A/C auto amp.
쐌
through body grounds M4, M66 and M147 (without NAVI), or
쐌
to smart entrance control unit terminals 43 and 64
쐌
through body grounds M77 and M111.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Component Parts and Harness Connector Location
EL-187
When the rear window defogger switch is turned ON, ground is supplied
쐌
through terminal 2 of the rear window defogger switch (with NAVI), or
쐌
through terminal 31 of A/C auto amp. (without NAVI)
쐌
to smart entrance control unit terminal 14.
Terminal 37 of the smart entrance control unit then supplies ground to the rear window defogger relay termi-
nal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
쐌
through terminals 5 and 7 of the rear window defogger relay
쐌
to the rear window defogger.
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
switch.
Power is supplied
쐌
to terminal 3 of the rear window defogger switch (with NAVI), or
쐌
to terminal 30 of the A/C auto amp. (without NAVI)
쐌
from terminal 7 of the rear window defogger relay.
Terminal 4 of the rear window defogger switch (with NAVI) or terminal 32 of the A/C auto amp. (without NAVI),
is grounded through body grounds M4, M66 and M147.
REAR WINDOW DEFOGGER
System Description (Cont’d)
EL-188
Wiring Diagram — DEF —
NBEL0335
MEL321Q
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Wiring Diagram — DEF —
EL-189
MEL322Q
REAR WINDOW DEFOGGER
Wiring Diagram — DEF — (Cont’d)
EL-190
SEL670Y
CONSULT-II Inspection Procedure
NBEL0336
“REAR DEFOGGER”
NBEL0336S01
1.
Turn ignition switch “OFF”.
2.
Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
the data link connector.
SKIA3098E
3.
Turn ignition switch “ON”.
4.
Touch “START (NISSAN BASED VHCL)”.
SEL398Y
5.
Touch “SMART ENTRANCE”.
If “SMART ENTRANCE” is not indicated, go to GI-42, “CON-
SULT-II Data Link Connector (DLC) Circuit”.
SEL023X
6.
Touch “REAR DEFOGGER”.
SEL322W
7.
Select diagnosis mode.
“DATA MONITOR” and “ACTIVE TEST” are available.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
CONSULT-II Inspection Procedure
EL-191
CONSULT-II Application Items
NBEL0337
“REAR DEFOGGER”
NBEL0337S01
Data Monitor
NBEL0337S0101
Monitored Item
Description
IGN ON SW
Indicates [ON/OFF] condition of ignition switch.
REAR DEF SW
Indicates [ON/OFF] condition of rear window defogger switch.
Active Test
NBEL0337S0102
Test Item
Description
REAR DEFOGGER
This test is able to check rear window defogger operation. Rear window defogger activates
when “ON” on CONSULT-II screen is touched.
REAR WINDOW DEFOGGER
CONSULT-II Application Items
EL-192
Trouble Diagnoses
NBEL0338
DIAGNOSTIC PROCEDURE
NBEL0338S01
SYMPTOM: Rear window defogger does not activate, or does
not go off after activating.
1
CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
With CONSULT-II
Select “ACTIVE TEST” in “REAR DEFOGGER” with CONSULT-II.
SEL353W
Without CONSULT-II
1. Turn ignition switch to ON position.
2. Check voltage between smart entrance control unit harness connector M122 terminal 37 (G/B) and ground.
SEL997X
OK or NG
OK
䊳
Check the following.
쐌
Rear window defogger relay (Refer to EL-196.)
쐌
Rear window defogger circuit
쐌
Rear window defogger filament (Refer to EL-197.)
NG
䊳
GO TO 2.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Trouble Diagnoses
EL-193
2
CHECK DEFOGGER RELAY COIL SIDE CIRCUIT
1. Disconnect smart entrance control unit connector.
2. Turn ignition switch to ON position.
3. Check voltage between smart entrance control unit harness connector M122 terminal 37 (G/B) and ground.
SEL998X
OK or NG
OK
䊳
GO TO 3.
NG
䊳
Check the following.
쐌
7.5A fuse [No. 11, located in the fuse block (J/B)]
쐌
Rear window defogger relay (Refer to EL-196)
쐌
Harness for open or short between fuse and rear window defogger relay
쐌
Harness for open or short between rear window defogger relay and smart entrance
control unit
REAR WINDOW DEFOGGER
Trouble Diagnoses (Cont’d)
EL-194
3
CHECK REAR WINDOW DEFOGGER SWITCH INPUT SIGNAL
With CONSULT-II
Select “REAR DEF SW” in “DATA MONITOR” mode with CONSULT-II.
SEL352W
Without CONSULT-II
Check voltage between smart entrance control unit harness connector M121 terminal 14 (OR) and ground.
SEL685Y
OK or NG
OK
䊳
GO TO 4.
NG
䊳
Check the following.
쐌
Rear window defogger switch (with NAVI) (Refer to EL-197.)
A/C auto amp. (without NAVI) (Refer to EL-197)
쐌
Harness for open or short between smart entrance control unit and rear window defog-
ger switch (with NAVI) or A/C auto amp. (without NAVI).
쐌
Rear window defogger switch (with NAVI) or A/C auto amp. (without NAVI) ground cir-
cuit
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Trouble Diagnoses (Cont’d)
EL-195
4
CHECK POWER SUPPLY AND IGNITION INPUT SIGNAL
Check voltage between smart entrance control unit harness connector M122 terminal 27 (W/B), M123 terminal 49 (G/R)
and ground.
SEL001Y
OK or NG
OK
䊳
GO TO 5.
NG
䊳
Check the following.
쐌
7.5A fuse [No. 11 or No. 24, located in the fuse block (J/B)]
쐌
Harness for open or short between smart entrance control unit and fuse
5
CHECK CONTROL UNIT GROUND CIRCUIT
Check continuity between smart entrance control unit harness connector M122 terminal 43 (B), M123 terminal 64 (B) and
ground.
SEL002Y
Yes
䊳
Replace smart entrance control unit.
No
䊳
Repair harness or connectors.
SEC202B
Electrical Components Inspection
NBEL0339
REAR WINDOW DEFOGGER RELAY
NBEL0339S01
Check continuity between terminals 3 and 5, 6 and 7.
Condition
Continuity
12V direct current supply between ter-
minals 1 and 2
Yes
No current supply
No
REAR WINDOW DEFOGGER
Trouble Diagnoses (Cont’d)
EL-196
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