fuse INFINITI FX35 2007 Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2007, Model line: FX35, Model: INFINITI FX35 2007Pages: 4366, PDF Size: 55.42 MB
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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
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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
Page 3609 of 4366
INTERIOR ROOM LAMP LT-153
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When the room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room
lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when the driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)
through 15A fuse [No. 22, located in fuse block (J/B)]
to key switch terminal 2 and
to BCM terminal 42,
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)
through 10A fuse (No.38, located in fuse, fusible link and relay box)
to key switch and ignition knob switch terminal 1,
through 15A fuse [No.22, located in fuse block (J/B)]
to BCM terminal 42 and
to key switch and ignition knob switch terminal 3,
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)
through key switch terminal 1
to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)
through key switch and ignition knob switch terminal 4
to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)
through ignition knob switch terminal 2
to intelligent key unit terminal 27.
With ignition switch in the ON or START position, power is supplied
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.
Ground is supplied
to BCM terminals 49 and 52, and
to combination meter terminal 5, 6 and 15
through grounds terminals M35, M45 and M85.
When driver side door is opened, ground is supplied
to BCM terminal 62
through front door switch (driver side) terminal 1
through case ground of front door switch (driver side).
When passenger side door is opened, ground is supplied
Page 3612 of 4366
LT-156
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
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 infuse block (J/B)]
through key switch terminal 2.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
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),
Power is supplied
through key switch terminal 1
to BCM terminal 37.
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.
Page 3626 of 4366
LT-170
INTERIOR ROOM LAMP
Revision: 2006 July 2007 FX35/FX45
Preliminary CheckNKS002YS
CHECK FOR POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT-160, "Wiring Diagram — ROOM/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.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCM Battery
M
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Ignition switch ON or START position 1
(+) (-) Ignition switch position
BCM con- nector Terminal OFF ON
M3 38 Ground Approx. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM connector Terminal Ground Continuity
M4 49
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52
SKIA5294E
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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
Page 3745 of 4366
PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ...................... 3
Schematic ........................................................... ..... 3
Wiring Diagram — POWER — ............................ ..... 4
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ........................................... ..... 4
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” .................................... ... 10
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” ............................... ... 12
Fuse .................................................................... ... 16
Fusible Link ......................................................... ... 16
Circuit Breaker .................................................... ... 16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ................................... ... 17
System Description ............................................. ... 17
SYSTEMS CONTROLLED BY IPDM E/R ........ ... 17
CAN COMMUNICATION LINE CONTROL ...... ... 17
IPDM E/R STATUS CONTROL ........................ ... 18
CAN Communication System Description ........... ... 18
CAN Communication Unit ................................... ... 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function (IPDM E/R) ...................... ... 19
CONSULT-II INSPECTION PROCEDURE ...... ... 19
SELF-DIAG RESULTS ..................................... ... 19
DATA MONITOR .............................................. ... 19
ACTIVE TEST .................................................. ... 20
Auto Active Test .................................................. ... 21
DESCRIPTION ................................................. ... 21
OPERATION PROCEDURE ............................ ... 21
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic ........................................................... ... 24
IPDM E/R Terminal Arrangement ........................ ... 25
IPDM E/R Power/Ground Circuit Inspection ....... ... 26
Inspection With CONSULT-II (Self-Diagnosis) .... ... 27
Removal and Installation of IPDM E/R ................ ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 28 GROUND ................................................................
... 29
Ground Distribution .............................................. ... 29
MAIN HARNESS .............................................. ... 29
ENGINE ROOM HARNESS ............................. ... 32
ENGINE HARNESS/VK ENGINE MODELS ..... ... 35
ENGINE HARNESS/VQ ENGINE MODELS .... ... 36
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 37
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 38
BODY HARNESS ............................................. ... 39
BODY NO. 2 HARNESS .................................. ... 41
ROOM LAMP HARNESS ................................. ... 42
HARNESS .............................................................. ... 43
Harness Layout ................................................... ... 43
HOW TO READ HARNESS LAYOUT .............. ... 43
OUTLINE .......................................................... ... 44
MAIN HARNESS .............................................. ... 45
ENGINE ROOM HARNESS ............................. ... 48
ENGINE HARNESS/VK ENGINE MODELS ..... ... 51
ENGINE HARNESS/VQ ENGINE MODELS .... ... 52
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 53
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 55
BODY HARNESS ............................................. ... 57
BODY NO. 2 HARNESS .................................. ... 59
ROOM LAMP HARNESS ................................. ... 60
FRONT DOOR HARNESS ............................... ... 61
REAR DOOR HARNESS ................................. ... 62
BACK DOOR HARNESS ................................. ... 63
Wiring Diagram Codes (Cell Codes) ................... ... 64
ELECTRICAL UNITS LOCATION ......................... ... 67
Electrical Units Location ...................................... ... 67
ENGINE COMPARTMENT ............................... ... 67
PASSENGER COMPARTMENT ...................... ... 68
LUGGAGE COMPARTMENT ........................... ... 70
HARNESS CONNECTOR ...................................... ... 71
Description ........................................................... ... 71
HARNESS CONNECTOR (TAB-LOCKING
Page 3746 of 4366
PG-2Revision: 2006 July 2007 FX35/FX45
TYPE) ...............................................................
... 71
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) ............................................................... ... 72
HARNESS CONNECTOR (LEVER LOCKING
TYPE) ............................................................... ... 73
ELECTRICAL UNITS ............................................. ... 74
Terminal Arrangement ......................................... ... 74
SMJ (SUPER MULTIPLE JUNCTION) .................. ... 76
Terminal Arrangement ......................................... ... 76 STANDARDIZED RELAY .......................................
... 78
Description ........................................................... ... 78
NORMAL OPEN, NORMAL CLOSED AND
MIXED TYPE RELAYS ..................................... ... 78
TYPE OF STANDARDIZED RELAYS ............... ... 78
FUSE BLOCK - JUNCTION BOX (J/B) ................. ... 80
Terminal Arrangement .......................................... ... 80
FUSE, FUSIBLE LINK AND RELAY BOX ............. ... 81
Terminal Arrangement .......................................... ... 81
Page 3760 of 4366
PG-16
POWER SUPPLY ROUTING CIRCUIT
Revision: 2006 July 2007 FX35/FX45
Fuse NKS003G8
If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
Use fuse of specified rating. Never use fuse of more than speci-
fied rating.
Do not partially install fuse; always insert it into fuse holder prop-
erly.
Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.
Fusible LinkNKS003G9
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of mal-
function.
Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl
or rubber parts.
Circuit Breaker NKS003GA
The PTC thermistor generates heat in response to current flow. The
temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
CEL083
CKIM0195E
SEL109W
Page 3761 of 4366
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-17
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionNKS003GB
IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
cuit.
IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, and hood switch signal reception, etc.
It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
IPDM E/R receives a request signal from each control unit with CAN communication. It controls each system.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L line, CAN H
line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
Fail- Safe Control
When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication recovers normally, it also returns to normal control.
Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Control system Transmit control unit Control part
Lamp control BCM
Headlamps (HI, LO)
Front fog lamps
Parking, license plate, side marker and tail lamps
Wiper control BCM Front wipers
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor (magnet clutch)
Cooling fan control ECM Cooling fan
Horn control BCM Horn
Controlled system Fail-safe mode
Headlamp
With the ignition switch ON, the headlamp (low) is ON.
With the ignition switch OFF, the headlamp (low) is OFF.
Parking, license plate side marker and
tail lamps
With the ignition switch ON, the parking, license plate, side marker and tail lamps is ON.
With the ignition switch OFF, the parking, license plate, side marker and tail lamps is OFF.
Cooling fan
With the ignition switch ON, the cooling fan HI operates.
With the ignition switch OFF, the cooling fan stops.
Front wiper Until the ignition switch is turned OFF, the front wiper LO and HI remains in the same status
it was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF
Page 3770 of 4366
PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 July 2007 FX35/FX45
IPDM E/R Power/Ground Circuit InspectionNKS003GJ
1. CHECK FUSES AND FUSIBLE LINKS
Make sure the following fusible links or IPDM E/R fuses are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link blown, be sure to eliminate cause of malfunction before installing new one.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E3.
3. Check voltage between IPDM E/R harness connector E3 termi- nals 1, 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors E8 and E9.
2. Check continuity between IPDM E/R harness connectors E8 ter- minal 38, E9 terminal 50, 60 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminal No. Power source Fuse and fusible link No.
1, 2 Battery power C
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71
78
1, 2 – Ground : Battery voltage
PKIB6562E
38, 50, 60 – Ground : Continuity should exist.
SKIA6184E