key battery INFINITI FX35 2005 Repair Manual

DI-32
UNIFIED METER AND A/C AMP
Revision: 2005 July 2005 FX
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
“TIME” indicates the condition of the self-diagnostic results judged by each signal input.

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.
After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1” →“2” →“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-
noses will be erased. And if any malfunction is detected again, “0” will be indicated.
CAUTION:
“TIME” keeps showing “0” after returning to normal condition only in the case that malfunction his-
tory of “CAN COMM CIRC [U1000]” remains because of low tire pressure warning control unit, display
control unit (with NAVI) or display unit (without NAVI) malfunction.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG- NALS” is selected, main items will be monitored.
SKIA4956E
CONSULT-ll display Malfunction is detected when... Reference
page
CAN COMM CIRC [U1000] Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction
may be misinterpreted when battery has low voltage (when maintaining 7 - 8 V
for about 2 seconds) or 10A fuse [No. 19, located in the fuse block (J/B)] is dis-
connected. DI-34
METER COMM CIRC [B2202]
Malfunction is detected in communication of between combination meter and unified
meter and A/C amp. DI-34
VEHICLE SPEED CIRC [B2205] When an erroneous speed signal is input for 1 second.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about
2 seconds). DI-37
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.

WARNING CHIME DI-59
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IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the ignition switch, and the ignition switch LOCK or ACC, when driver's door is
opened, the warning chime will sound.
Power is supplied

through key switch and ignition knob switch terminal 4

to BCM terminal 37.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp.
with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.
When Intelligent Key Is Carried With The Driver
When the ignition knob is in LOCK (push switch ON) or ACC, when driver's door is opened, the warning chime
will sound.
Power is supplied

through key switch and ignition knob switch terminal 2

to Intelligent Key unit terminal 27.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM sends front door switch signal to Intelligent Key unit with CAN communication line.
Intelligent Key unit detects ignition knob return is forgotten, and sends key warning signal to unified meter and
A/C amp. with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination
meter with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.
LIGHT WARNING CHIME
With the key removed from the ignition switch or when the ignition knob is in LOCK (push switch OFF) [with
Intelligent Key], the driver's door is opened, and the lighting switch is in ON position, the warning chime will
sound. [Except when headlamp battery saver control operates (for 5 minutes after ignition switch is turned to
OFF or ACC position) and headlamps do not illuminate.]
Signal is supplied

from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10

to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position, refer to BCS-3, "
COMBINATION SWITCH READING
FUNCTION" .
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects headlamps are illuminated, and sends light warning signal to unified meter and A/C amp. with
CAN communication line. Unified meter and A/C amp. sends light warning signal to combination meter with
communication line between unified meter and A/C amp. and combination meter.
When combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
With ignition switch turned ON and seat belt unfastened [seat belt buckle switch (driver side) ON], warning
chime will sound for approximately 6 seconds.
Ground is supplied

DI-66
WARNING CHIME
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAKS005NO
Te r m i n a l
No. Wire
color Item Measuring condition
Reference value
Ignition
switch Operation or condition
2 GY Combination switch input 5 ON Lighting, turn, wiper OFF
Wiper dial position 4
3 L/B Combination switch input 4 ON Lighting, turn, wiper OFF
Wiper dial position 4
4 PU/W Combination switch input 3
5 Y/R Combination switch input 2
6 SB Combination switch input 1
32 GY/R Combination switch output 5 ON Lighting, turn, wiper OFF
Wiper dial position 4
33 G Combination switch output 4 ON Lighting, turn, wiper OFF
Wiper dial position 4
34 W/B Combination switch output 3
35 W/G Combination switch output 2
36 W/R Combination switch output 1
37 B/W Key switch signal OFF Key is removed Approx. 0 V
Key is inserted Battery voltage
38 W/L Ignition switch ON or START ON — Battery voltage
39 L CAN H OFF — —
40 R CAN L OFF — —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52
55 G Battery power supply OFF — Battery voltage
62 W Front door switch (driver side) OFF When driver side door is
opened (Door switch ON) Approx. 0 V
When driver side door is
closed (Door switch OFF) Approx. 12 V
PKIB3468E
PKIB3469E
PKIB3470E
PKIB3471E

WARNING CHIME DI-75
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5. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal 37 (B/W) and key switch harness connector M23 terminal 1 (B/
W).
3. Check continuity between BCM harness connector M3 terminal 37 (B/W) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M23 terminal
2 (L/R) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check harness between key switch and fuse.
Key Warning Chime Does Not Operate (With Intelligent Key, When Mechanical
Key Is Used)
AKS0079U
1. CHECK FUSE
Check if the key switch and ignition knob switch 10A fuse (No. 38, located in the fuse and fusible link box) is
blown. Refer to DI-63, "
Wiring Diagram — CHIME —" .
Is the fuse blown?
YES >> Replace fuse. Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2.
2. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of key warning chime (when mechanical key is used) opera-
tion.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-71, "
All Warnings Are Not Operated" or DI-72, "Key Warning Chime and Light Warning
Chime Does Not Operate (Seat Belt Warning Chime Does Operate)" .
37 (B/W) – 1 (B/W) : Continuity should exist.
37 (B/W) – Ground : Continuity should not exist.
PKIB3833E
2 (L/R) – Ground : Battery voltage
SKIA5051E

DI-76
WARNING CHIME
Revision: 2005 July 2005 FX
3. CHECK BCM INPUT SIGNAL
With CONSULT-ll
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “KEY ON SW” when the key is operated.
Without CONSULT-ll
Check voltage between BCM harness connector M3 terminal 37 (B/
W) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> GO TO 4.
4. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Disconnect key switch and ignition knob switch connector.
2. Check voltage between key switch and ignition knob switch har- ness connector M22 terminal 3 (L/R) and ground.
OK or NG
OK >> GO TO 5.
NG >> Check harness between key switch and ignition knob switch and fuse.
“KEY ON SW”
When key is inserted to ignition
key cylinder : ON
When key is removed from
ignition key cylinder : OFF
SKIA1960E
37 (B/W) – Ground
When key is inserted to ignition
key cylinder : Approx. 12 V
When key is removed from
ignition key cylinder : Approx. 0 V
SKIA5048E
3 (L/R) – Ground : Battery voltage
SKIA5063E

DI-78
WARNING CHIME
Revision: 2005 July 2005 FX
3. CHECK INTELLIGENT KEY UNIT INPUT SIGNAL
With CONSULT-ll
1. Select “INTELLIGENT KEY”.
2. With “DATA MONITOR”, confirm “PUSH SW” when the ignition knob switch is operated. Refer to BL-119, "
CONSULT-II Func-
tions" .
Without CONSULT-ll
Check voltage between Intelligent Key unit harness connector M34
terminal 27 (L/W) and ground.
OK or NG
OK >> Replace Intelligent Key unit. Refer to BL-151, "Removal
and Installation of Intelligent Key Unit" .
NG >> GO TO 4.
4. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Disconnect key switch and ignition knob switch connector.
2. Check voltage between key switch and ignition knob switch har- ness connector M22 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 5.
NG >> Check harness between key switch and ignition knob
switch and fuse.
“PUSH SW”
When ignition knob switch
is pushed : ON
When ignition knob switch
is withdrawn : OFF
SKIA5064E
27 (L/W) – Ground
When ignition knob switch
is pushed : Approx. 12 V
When ignition knob switch
is withdrawn : Approx. 0 V
SKIA5065E
1 (L/R) – Ground : Battery voltage
SKIA5068E

PRECAUTIONS EM-5
[VQ35DE]
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[VQ35DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectABS00B3J
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Drain Engine Coolant and Engine OilABS00E3J
Drain engine coolant and engine oil when the engine is cooled.
Precautions for Disconnecting Fuel PipingABS00E3K

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyABS00E3L

When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,
make sure that dowel pins are installed in the original position.

Cover openings of engine system with a tape or equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used in the step.
Precautions for Inspection, Repair and ReplacementABS00E3M
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.

PRECAUTIONS EM-163
[VK45DE]
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[VK45DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectABS00DB1
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Drain Engine Coolant and Engine OilABS006HV
Drain engine coolant and engne oil when engine is cooled.
Precautions for Disconnecting Fuel PipingABS006HW

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyABS006HX

When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used where noted in the step.
Precautions for Inspection, Repair and ReplacementABS006HY
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationABS006HZ

Use torque wrench to tighten bolts or nuts to specification.

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
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2005 FX
GENERAL INFORMATION
PRECAUTIONS .......................................................... 3
Description .......................................................... ..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ............................................................ ..... 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... ..... 4
OPERATION PROCEDURE ............................ ..... 4
Precautions for Procedures without Cowl Top Cover ..... 4
General Precautions ........................................... ..... 4
Precautions for Three Way Catalyst .................... ..... 6
Precautions for Fuel (Unleaded Premium Gasoline
Recommended) ................................................... ..... 6
Precautions for Fuel (Unleaded Premium Gasoline
Required) ............................................................ ..... 7
Precautions for Multiport Fuel Injection System or
Engine Control System ....................................... ..... 7
Precautions for Hoses ......................................... ..... 7
HOSE REMOVAL AND INSTALLATION .......... ..... 7
HOSE CLAMPING ........................................... ..... 8
Precautions for Engine Oils ................................. ..... 8
HEALTH PROTECTION PRECAUTIONS ........ ..... 8
ENVIRONMENTAL PROTECTION PRECAU-
TIONS .............................................................. ..... 8
Precautions for Air Conditioning .......................... ..... 8
HOW TO USE THIS MANUAL .............................. ..... 9
Description .......................................................... ..... 9
Terms .................................................................. ..... 9
Units .................................................................... ..... 9
Contents .............................................................. ..... 9
Components ........................................................ ... 10
SYMBOLS ........................................................ ... 10
How to Follow Trouble Diagnoses ....................... .... 11
DESCRIPTION ................................................. .... 11
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................ .... 11
HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION ....................................
... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................ ... 13
How to Read Wiring Diagrams ............................ ... 15
CONNECTOR SYMBOLS ................................ ... 15
SAMPLE/WIRING DIAGRAM - EXAMPL - ....... ... 16
DESCRIPTION ................................................. ... 17
Abbreviations ....................................................... ... 23
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ...................................................................... ... 24
How to Check Terminal ........................................ ... 24
CONNECTOR AND TERMINAL PIN KIT ......... ... 24
HOW TO PROBE CONNECTORS ................... ... 24
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................ ... 27
WORK FLOW ................................................... ... 27
INCIDENT SIMULATION TESTS ..................... ... 27
CIRCUIT INSPECTION .................................... ... 30
Control Units and Electrical Parts ........................ ... 35
PRECAUTIONS ............................................... ... 35
CONSULT-II CHECKING SYSTEM ....................... ... 37
Description ........................................................... ... 37
Function and System Application ........................ ... 37
Nickel Metal Hydride Battery Replacement ......... ... 38
Checking Equipment ........................................... ... 38
CONSULT-II Start Procedure ............................... ... 38
CONSULT-II Data Link Connector (DLC) Circuit . ... 39
INSPECTION PROCEDURE ........................... ... 39
CIRCUIT DIAGRAM ......................................... ... 40
LIFTING POINT ...................................................... ... 41
Special Service Tools .......................................... ... 41
Garage Jack and Safety Stand ............................ ... 41
2-Pole Lift ............................................................ ... 42
Board-On Lift ....................................................... ... 43
TOW TRUCK TOWING .......................................... ... 44
Tow Truck Towing ................................................ ... 44
2WD MODELS ................................................. ... 44
AWD MODELS ................................................. ... 45
Vehicle Recovery (Freeing a Stuck Vehicle) ........ ... 45
AUTOMATIC TRANSMISSION ........................ ... 46

GI-4
PRECAUTIONS
Revision: 2005 July 2005 FX
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectAAS000L1
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Procedures without Cowl Top CoverAAS000W0
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
General PrecautionsAAS000EY

Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any
inflammable or poisonous materials, such as gasoline, refriger-
ant gas, etc. When working in a pit or other enclosed area, be
sure to properly ventilate the area before working with hazard-
ous materials.
Do not smoke while working on the vehicle.
PIIB3706J
SGI285