battery INFINITI FX35 2006 Service Manual

LT-134
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 December 2006 FX35/FX45

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

to CPU located in IPDM E/R.
Power is also supplied at all times

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

to BCM terminal 55,

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM terminal 42,

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8 and

to unified meter and A/C amp. terminal 21.
With ignition switch in ON or START position, power is supplied

through ignition relay, located in IPDM E/R, from battery direct,

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 12, located in fuse block (J/B)]

to combination meter terminal 7 and

to unified meter and A/C amp. terminal 22.
With 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 terminals 49 and 52

through grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51,

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85,

to unified meter and A/C amp. terminals 29 and 30

through grounds M35, M45 and M85.
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is
communicated to the IPDM E/R through the CAN communication lines. The CPU located in the IPDM E/R
controls the tail lamp relay coil, which when energized, directs power.

through IPDM E/R terminal 22

to front side marker lamp LH terminal 1

to parking lamp LH terminal 2

to license plate lamp LH terminal 1

to rear combination lamp LH terminal 1

to rear combination lamp control unit terminal 2

to front side marker lamp RH terminal 1

to parking lamp RH terminal 2

to license plate lamp RH terminal 1 and

to rear combination lamp RH terminal 1.
Ground is supplied at all times

PARKING, LICENSE PLATE AND TAIL LAMPS LT-135
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to front side marker lamp LH terminal 2

through grounds E21, E50 and E51,

to parking lamp LH terminal 3

through grounds E21, E50 and E51,

to license plate lamp LH terminal 2

through grounds B15 and B45,

to rear combination lamp LH terminal 2

through grounds B15 and B45,

to front side marker lamp RH terminal 2

through grounds E21, E50 and E51,

to parking lamp RH terminal 3

through grounds E21, E50 and E51,

to license plate lamp RH terminal 2

through grounds B15 and B45,

to rear combination lamp RH terminal 2

through grounds B203 and B210,

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51.
With power and ground supplied, the parking, license plate, side marker and tail lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST (or 2ND) position, and the ignition switch is turned
from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the parking, license, side marker and tail lamps remain illuminated for 5 minutes, then the
parking, license plate, side marker and tail lamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionNKS003H1
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003H2
Refer to LAN-32, "CAN Communication Unit" .

LT-142
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Values for BCMNKS003H5
Terminals and Reference Values for IPDM E/RNKS003H6
Terminal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2R Combination
switch input 5 ON Lighting, turn,
wiper switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Lighting switch 1ST Approx. 1.0 V
11 L G Ignition switch
(ACC) ACC — Battery voltage
33 G/Y Combination
switch output 4 ON Lighting, turn,
wiper switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Lighting switch 1ST
(The same result with
lighting switch 2ND)
Approx. 1.2 V
38 W/L Ignition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
PKIB4959J
PKIB4960J
PKIB4958J
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
22 R Parking, license, side
marker, and tail lamp ON
Lighting switch
1ST position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —

LT-144
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for Rear Combination Lamp Control UnitNKS003NA
Refer to LT- 9 9 , "Terminals and Reference Value for Rear Combination Lamp Control Unit" .
How to Proceed With Trouble DiagnosisNKS003H7
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 3 3 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 4 4 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do parking, license plate, side marker and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS003H8
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 1 3 7 , "
Wiring Diagram — TAIL/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
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.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 71
Rear combination lamp control unit Battery 20
(+) (-) Ignition switch position
BCM con- nector Terminal OFF ACC ON
M3 11
Ground Approx. 0 V
Battery
voltage Battery
voltage
38 Approx. 0 V Approx. 0 V Battery
voltage
M4 42
Battery
voltage Battery
voltage Battery
voltage
55 Battery
voltage Battery
voltage Battery
voltage
PKIB5197E

PARKING, LICENSE PLATE AND TAIL LAMPS LT-147
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4. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front side marker, parking lamp, license plate lamp and rear combination lamp connectors.
3. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “TAIL LAMP” on “SELECT TEST ITEM” screen.
5. Touch “ON” screen.
6. When parking, license plate and side marker is operating, check voltage between front side marker lamp, parking lamp, license plate lamp, rear combination lamp harness connector and ground.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front side marker, parking lamp, license plate lamp and rear combination lamp connectors.
3. Start auto active test. Refer to PG-21, "
Auto Active Test" .
4. When parking, license plate and side marker is operating, check voltage between front side marker lamp, parking lamp, license plate lamp, rear combination lamp harness connector and ground.
(+)
(-) Voltage
Front side marker
lamp connector Terminal
RH E22 1 Ground Battery voltage
LH E42
PKIA5236E
(+)
(-) Voltage
Parking lamp con-
nector Terminal
RH E23 2 Ground Battery voltage
LH E43
PKIC9695E
(+)
(-) Voltage
License plate lamp
connector Terminal
RH D111 1 Ground Battery voltage
LH D110
PKIA5238E

LT-148
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 December 2006 FX35/FX45
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
(+)
(-) Voltage
Rear combination
lamp (Side marker) connector Terminal
RH B219 1 Ground Battery voltage
LH B57
PKIA5239E

PARKING, LICENSE PLATE AND TAIL LAMPS LT-151
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Tail Lamp Does Not OperateNKS003HC
1. CHECK STOP LAMP AND TURN SIGNAL LAMP
Make sure stop lamps and turn signal lamps is illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK INPUT SIGNAL
Check voltage between rear combination lamp control unit harness
connector B65 terminal 2 and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between rear combination lamp control unit har- ness connector B65 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 7 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
(+)
(-) Condition Voltage
Rear com-
bination
lamp con-
trol unit
connector Terminal
B65 2 Ground Lighting switch 1ST
position is ON Battery voltage
Lighting switch 1ST position is OFF Approx. 0 V
PKIA5248E
1 – Ground : Battery voltage.
PKIB3526E
7 – Ground : Continuity should exist.
SKIA5908E

LT-160
INTERIOR ROOM LAMP
Revision: 2006 December 2006 FX35/FX45
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions
are met, and turns interior room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and key is not inserted in key switch (key switch OFF), BCM terminal 62
changes between 0V (door open) → 12V (door closed). BCM determines that conditions for interior room lamp
and map lamp operation are met and turns interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.

Driver door is locked [when locked keyfob or power window main switch (door lock and unlock switch),
door key cylinder switch].

Driver door is opened (driver door switch turns ON).

Ignition switch ON.
With Intelligent Key System
When the interior room lamp and map lamp switch is in DOOR position, and when all conditions below are
met, BCM performs timer control (maximum 30 second) for interior room lamp and map lamp ON/OFF.
In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied

to 15A fuse [No. 22, located in fuse and fuse block (J/B)]

through key switch and ignition knob switch terminal 3.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
And not turned ignition knob switch, power will not be supplied to Intelligent Key unit.
Ground is supplied

from BCM terminal 22

to power window main switch (door lock and unlock switch) terminal 14.
At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns interior room lamp and map lamp ON
for 30 seconds.
Key is in ignition key cylinder (key switch ON), or turned ignition knob switch,
Power is supplied

through key switch and ignition knob switch terminal 4

to BCM terminal 37,

through key switch and ignition knob switch terminal 2

to intelligent key unit terminal 27.
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
And turned ignition knob switch, power supply to Intelligent Key unit is terminated. BCM detects that key has
been removed, determines that interior room lamp and map lamp timer conditions are met, and turns interior
room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and key is not inserted in key switch (or not turned ignition knob switch),
BCM terminal 62 changes between 0V (door open) → 12V (door closed). BCM determines that conditions for
interior room lamp and map lamp operation are met and turns interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.

Driver door is locked [when locked keyfob, power window main switch (door lock and unlock switch) or
door key cylinder switch].

Driver door is opened (driver door switch terns ON).

Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL
If interior lamp is left “ON”, it will not be turned out even when door is closed.
BCM turns off interior lamp automatically to save battery 30 minutes after ignition switch is turned off.
BCM controls interior lamps listed below:

Luggage room lamp

Vanity mirror lamp

Map lamp

Interior room lamp

Personal lamp
After lamps turn OFF by battery saver system, lamps illuminate again when

INTERIOR ROOM LAMP LT-161
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signal from keyfob, or power window main switch (door lock and unlock switch) or key cylinder is locked or
unlocked,

door is opened or closed,

key is removed from ignition key cylinder or inserted in ignition key cylinder, or turned ignition knob switch.
Interior lamp battery saver control period can be changed by the function setting of CONSULT-II.

LT-172
INTERIOR ROOM LAMP
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Values for BCMNKS002YQ
Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
1PU Ignition keyhole illumi-
nation signal OFF Door is locked. (SW OFF) Battery voltage
Door is unlocked. (SW ON) Approx. 0 V
12 P/B Front door switch AS
signal OFF
Front door switch
AS ON (open) Approx. 0 V
OFF (closed) Battery voltage
13 P/L Rear door switch RH
signal OFF
Rear door switch
RH ON (open) Approx. 0 V
OFF (closed) Battery voltage
22 OR Power window switch
serial link ——
37 B/W Key-in detection
switch signal OFF Vehicle key is removed. Approx. 0 V
Vehicle key is inserted. Battery voltage
38 W/L Ignition power supply ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
41 R/B Battery saver output
signal OFF
30 minutes after ignition switch is turned to
OFF Approx. 0 V
ON — Battery voltage
42 L/R Battery power supply OFF — Battery voltage
47 Y/R Step lamp signal OFF Any door is open (ON) Approx. 0 V
All doors are closed (OFF) Battery voltage
48 PU/W Interior room lamp,
map lamp, front door
inside handle and rear
door inside handle illu-
mination output signal OFF
Interior door
switch:
DOOR position Any
door
switch ON (open) Approx. 0 V
OFF (closed) Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power supply OFF — Battery voltage
58 L Back door switch sig-
nal (Auto close motor) OFF Back door switch ON (open) Approx. 0 V
OFF (closed) Battery voltage
62 W Front door switch DR
signal OFF
Front door switch
DR ON (open) Approx. 0 V
OFF (closed) Battery voltage
63 P Rear door switch LH
signal OFF
Rear door switch
LH ON (open) Approx. 0 V
OFF (closed) Battery voltage
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