light INFINITI FX35 2007 Service Manual

PARKING, LICENSE PLATE AND TAIL LAMPS LT-131
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Revision: 2006 July 2007 FX35/FX45
PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationNKS003GZ
System DescriptionNKS003H0
Control of the parking, license plate, side marker and tail lamp operation is dependent upon the position of the
lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body
control module) receives input signal requesting the parking, license plate, side marker and tail lamps to illumi-
nate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room)
through the CAN communication lines. CPU (central processing unit) located in the IPDM E/R controls the tail
lamp relay coil. This relay, when energized, directs power to the parking, license plate, side marker and tail
lamps, which then illuminate.
The current that flows by Rear combination lamp control unit is controlled, and a tail lamp (LED) is made to
turn ON.
OUT LINE
Power is supplied at all times

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

through 10A fuse (No. 71, located in IPDM E/R)

to tail lamp relay, located in IPDM E/R and
PKIC9694E

LT-132
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 July 2007 FX35/FX45

to CPU located in IPDM E/R,

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

to CPU located in IPDM E/R.

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 the 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. 14, located in fuse block (J/B)]

to combination meter terminal 7 and

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

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 rear combination lamp control unit terminal 7 and

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to BCM terminals 49 and 52

to combination meter terminals 5, 6 and 15, and

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. 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

to front side marker lamp LH terminal 2

through grounds E21, E50 and E51,

PARKING, LICENSE PLATE AND TAIL LAMPS LT-133
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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-49, "CAN System Specification Chart" .

LT-140
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for BCMNKS003H5
CAUTION:

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
11 7 , "DATA MONITOR" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY 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 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

PARKING, LICENSE PLATE AND TAIL LAMPS LT-141
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Terminals and Reference Values for IPDM E/RNKS003H6
Terminals and Reference Value for Rear Combination Lamp Control UnitNKS003NA
Refer to LT- 9 8 , "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 1 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 4 1 , "
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-135, "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" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
22 R Parking, license plate,
side marker, and tail
lamps ON
Lighting switch
1ST position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 R CAN − L— — —
60 B Ground ON — Approx. 0 V
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

PARKING, LICENSE PLATE AND TAIL LAMPS LT-143
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Parking, License Plate and Side Marker Lamps Do Not IlluminateNKS003HB
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “LIGHT SW 1 ST” turns ON-OFF linked with operation of
lighting switch.
Without CONSULT-II
Refer to LT- 11 8 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT-
11 8 , "Combination Switch Inspection" .
2. ACTIVE TEST
With CONSULT-II
1. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Select “TAIL LAMP” on “SELECT TEST ITEM” screen.
3. Touch “ON” screen.
4. Make sure parking, license plate and side marker lamps opera- tion.
Without CONSULT-II
1. Start auto active test. Refer to PG-21, "
Auto Active Test" .
2. Make sure parking, license plate and side marker lamps operation.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-II, and select “DATA MONI- TOR” on “SELECT DIAG MODE” screen.
2. Make sure “TAIL & CLR REQ” turns ON when lighting switch is in 1ST position.
OK or NG
OK >> Replace IPDM E/R.
NG >> Replace BCM. Refer to BCS-14, "
Removal and Installa-
tion of BCM" .
When lighting switch is 1ST
position : LIGHT SW 1 ST ON
PKIA7607E
Parking, license plate and side marker lamps
should operate.
Parking, license plate and side marker lamps
should operate.
SKIA5957E
When lighting switch is 1ST
position : TAIL & CLR REQ ON
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PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2006 July 2007 FX35/FX45
2. CHECK INPUT SIGNAL
Check voltage between rear combination lamp control unit harness
connector 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 combina-
tion lamp control 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

PARKING, LICENSE PLATE AND TAIL LAMPS LT-149
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Revision: 2006 July 2007 FX35/FX45
5. CHECK REAR COMBINATION LAMPS CIRCUIT
1. Disconnect rear combination lamp RH and LH connectors.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 11 and rear combination lamp
LH harness connector B57 terminal 3.
3. Check continuity between rear combination lamp control unit harness connector B65 terminal 10 and rear combination lamp
LH harness connector B57 terminal 4.
4. Check continuity between rear combination lamp control unit harness connector B65 terminal 9 and rear combination lamp RH harness connector B219 terminal 3.
5. Check continuity between rear combination lamp control unit harness connector B65 terminal 8 and rear combination lamp RH harness connector B219 terminal 4.
OK or NG
OK >> Replace rear combination lamp control unit or rear combination lamp, and then check if turn signal lamps is illuminated.
NG >> Repair harness or connector.
Parking, License Plate, Side Maker and Tail Lamps Do Not Turn OFF (After
Approx. 10 Minutes)
NKS003HD
1. CHECK IPDM E/R
1. Turn ignition switch ON. Turn combination switch (lighting switch) to the OFF position. Turn ignition switch OFF.
2. Verify that parking, license plate, and tail lamps turn on and off after approximately 10 minutes.
OK or NG
OK >> Ignition relay malfunction. Refer to PG-18, "Function of Detecting Ignition Relay Malfunction" .
NG >> INSPECTION END 11 – 3 : Continuity should exist.
10 – 4 : Continuity should exist.
9 – 3 : Continuity should exist.
8 – 4 : Continuity should exist.
SKIA5910E

LT-186
ILLUMINATION
Revision: 2006 July 2007 FX35/FX45
ILLUMINATIONPFP:27545
System DescriptionNKS002Z2
Control of illumination lamps operation is dependent upon position of lighting switch (combination switch).
When lighting switch is placed in the 1ST or 2ND position (or if auto light system is activated), BCM (body con-
trol module) receives input signal requesting illumination lamps to illuminate. This input signal is communi-
cated to IPDM E/R (intelligent power distribution module engine room) through the CAN communication. The
CPU (central processing unit) located in the IPDM E/R controls tail lamp relay coil. This relay, when energized,
directs power to illumination lamps, which then illuminate.
Power is supplied at all times

through 10A fuse (No. 71, located in IPDM E/R)

to tail lamp relay, located in IPDM E/R, and

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

to CPU located in IPDM E/R,

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

to unified meter and A/C amp. terminal 21 and

to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied

to 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 unified meter and A/C amp. terminal 22 and

to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to combination meter terminal 4 and

to BCM terminal 11.
Ground is supplied

to BCM terminals 49 and 52

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

to combination meter terminals 5, 6, and 15

through grounds M35, M45, and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50, and E51.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With lighting switch in the 1ST or 2ND position (or if auto light system is activated), BCM receives input signal
requesting illumination lamps to illuminate. This input signal is communicated to IPDM E/R through the CAN
communication. The CPU located in the IPDM E/R controls tail lamp relay coil, which, when energized, directs
power

through IPDM E/R terminal 22

to glove box lamp terminal 1

to A/T device (illumination) terminal 11

to snow mode switch (illumination) terminal 5

to VDC off switch (illumination) terminal 3

ILLUMINATION LT-187
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to clock (illumination) terminal 3

to hazard switch (illumination) terminal 3

to heated seat switch (driver side) (illumination) terminal 5

to heated seat switch (passenger side) (illumination) terminal 5

to door mirror remote control switch (illumination) terminal 16

to LDW switch (illumination) terminal 5

to combination switch (spiral cable) terminal 26

to microphone terminal 2 (with telephone system)

to A/C and AV switch (illumination) terminal 3

to DVD player (illumination) terminal 12

to coin box illumination terminal 2 and

to rear power window switch LH and RH (illumination) terminals 6,

through combination switch (spiral cable) terminal 18

to audio steering switch (illumination)

to icc steering switch (illumination) (with icc) and

to ascd steering switch (illumination) (without icc)
Illumination control

through combination meter terminal 19

to A/T device (illumination) terminal 12

to snow mode switch (illumination) terminal 6

to VDC off switch (illumination) terminal 4

to clock (illumination) terminal 4

to hazard switch (illumination) terminal 4

to heated seat switch (driver side) (illumination) terminal 6

to heated seat switch (passenger side) (illumination) terminal 6

to door mirror remote control switch terminal 15

to LDW switch (illumination) terminal 4,

to combination switch (spiral cable) terminal 27

to A/C and AV switch (illumination) terminal 4 and

to DVD player (illumination) terminal 10,

through combination switch (spiral cable) terminal 21

to audio steering switch (illumination)

to icc steering switch (illumination) (with icc) and

to ascd steering switch (illumination) (without icc)
Ground is supplied at all times

to glove box lamp terminal 2 and

to coin box illumination terminal 3

through grounds M35, M45 and M85,

to rear power window switch LH and RH (illumination) terminals 7

through grounds B15 and B45.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the lighting switch is in the 1ST or 2ND position (or if auto light system is activated), and ignition switch
is turned from ON or ACC to OFF, battery saver control function is activated.
Under this condition, illumination lamps remain illuminated for 5 minutes, then illumination lamps are turned
off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.