2006 INFINITI M35 combination meter

AT-228
SHIFT CONTROL SYSTEM
Revision: 2006 January2006 M35/M45
Checking of A/T PositionNCS001QO
1. Place selector lever in “P” position, and turn ignition switch ON (engine stop).
2. Make sure that selector lever can be shifted to other than “P” position when brake pedal is depressed.
Also make sure that selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the A/T body.
5. The method of operating the lever to individual positions cor-
rectly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with-
out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Confirm the back-up lamps illuminate only when lever is placed
in the “R” position. Confirm the back-up lamps does not illumi-
nate when selector lever is pushed against “R” position in the
“P” or “N” position.
8. Confirm the engine can only be started with the selector lever in
the “P” and “N” positions. (With selector lever in the “P” position,
engine can be started even when selector lever is moved for-
ward and backward.)
9. Make sure that A/T is locked completely in “P” position.
10. When selector lever is set to manual shift gate, make sure that manual mode is displayed on combination
meter.
Shift selector lever to “+” and “-” sides, and check that set shift position changes.
SCIA6760E

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BODY CONTROL SYSTEM
K ELECTRICAL
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SECTION BCS
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Revision: 2006 January2006 M35/M45
BODY CONTROL SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
BCM (BODY CONTROL MODULE) ........................... 3
System Description .................................................. 3
BCM FUNCTION ................................................... 3
COMBINATION SWITCH READING FUNCTION ..... 3
CAN COMMUNICATION CONTROL .................... 6
BCM STATUS CONTROL ..................................... 7
SYSTEMS CONTROLLED BY BCM DIRECTLY ..... 8
SYSTEMS CONTROLLED BY BCM AND IPDM
E/R ........................................................................ 8
SYSTEMS CONTROLLED BY BCM AND COM-
BINATION METER ................................................ 8
SYSTEMS CONTROLLED BY BCM AND INTEL-
LIGENT KEY UNIT ................................................ 8SYSTEMS CONTROLLED BY BCM, COMBINA-
TION METER AND IPDM E/R ............................... 8
MAJOR COMPONENTS AND CONTROL SYS-
TEM ....................................................................... 9
CAN Communication Unit ....................................... 10
Schematic ............................................................... 11
CONSULT-II Function (BCM) ................................. 13
CONSULT-II BASIC OPERATION ....................... 13
ITEMS OF EACH PART ...................................... 14
WORK SUPPORT ............................................... 15
CAN DIAG SUPPORT MNTR ............................. 15
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 15
Check BCM Power Supply and Ground Circuit ...... 16
Removal and Installation of BCM ........................... 17
REMOVAL ........................................................
... 17
INSTALLATION ................................................... 17

BCM (BODY CONTROL MODULE)
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Revision: 2006 January2006 M35/M45
BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionNKS003XH
BCM (Body Control Module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has combination switch reading function for reading the operation of combination switches (light, wiper,
washer, turn signal) in addition to a function for controlling the operation of various electrical components. Also
it has an interface function allowing it to receive signals from the combination meter, and send signals to ECM
using CAN communication.
COMBINATION SWITCH READING FUNCTION
Description
BCM reads combination switch (lighting switch, wiper switch) status, and controls various electrical com-
ponent according to the result.
BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
Operation Description
BCM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in
turn.
If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.
At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that switch is ON.
PKIC0270E

BCM (BODY CONTROL MODULE)
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Revision: 2006 January2006 M35/M45
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status
With ignition switch ON, CAN communicates with other control units normally.
Control by BCM is being operated properly.
When ignition switch is OFF, switching to sleep mode is possible.
Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status
This status shuts down CAN communication when ignition switch is turned OFF.
It transmits sleep request signal to IPDM E/R and combination meter.
Two seconds after CAN communication of all control units stops, sleep transient status switches to CAN
communication inactive status.
3. CAN communication inactive status
With ignition switch OFF, CAN communication is not active.
With ignition switch OFF, control performed only by BCM is active.
Three seconds after CAN communication of all control units stops, CAN communication inactive status
switches to sleep status.
4. Sleep status
BCM is activated with low power mode.
CAN communication is not active.
When CAN communication operation is detected, it switches to CAN communication status.
When a state of the following switches changes, it switches to CAN communication status.
–Key switch (ACC, ON)
–Key slot
–Intelligent Key (lock/unlock signal)
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH)
–Trunk lid opener switch
–Combination switch (passing, lighting switch 1ST position, front fog lamp)
–Key cylinder switch
When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
Status of combination switch reading function is changed to low power consumption mode.

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BCM (BODY CONTROL MODULE)
Revision: 2006 January2006 M35/M45
SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
SYSTEMS CONTROLLED BY BCM, COMBINATION METER AND IPDM E/R
System Reference
Power door lockBL-24, "
POWER DOOR LOCK SYSTEM"
Power window NOTEGW-13, "POWER WINDOW SYSTEM"
Sunroof NOTERF-10, "SUNROOF"
Automatic drive positioner NOTESE-11, "AUTOMATIC DRIVE POSITIONER"
Room lamp timerLT-267, "INTERIOR ROOM LAMP"
System Reference
Panic alarmBL-220, "
VEHICLE SECURITY (THEFT WARNING) SYSTEM"
Theft warningBL-220, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)BL-248, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
HeadlampLT- 4 3 , "HEADLAMP (FOR USA) - XENON TYPE -"
LT- 8 , "HEADLAMP (FOR USA) - CONVENTIONAL TYPE -"
Auto light systemLT- 11 6 , "AUTO LIGHT SYSTEM"
Parking lamp, license plate, tail lampLT-249, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front fog lampLT-193, "FRONT FOG LAMP"
Front wiper and washer systemWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-73, "REAR WINDOW DEFOGGER"
System Reference
Turn signal and hazard warning lampsLT- 2 11 , "
TURN SIGNAL AND HAZARD WARNING LAMPS"
Warning chimeDI-60, "WARNING CHIME"
System Reference
Intelligent KeyBL-44, "
INTELLIGENT KEY SYSTEM"
System Reference
Oil pressure warning lampDI-60, "
WARNING CHIME"

BCM (BODY CONTROL MODULE)
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Revision: 2006 January2006 M35/M45
MAJOR COMPONENTS AND CONTROL SYSTEM
NOTE:
*1: Functions only when the Intelligent Key is inserted in key slot.
*2: With navigation system
*3: Without navigation systemSystem Input Output
Intelligent Key system Intelligent Key unit
All door locking actuator
Trunk lid opener actuator
Turn signal lamp (LH, RH)
Combination meter
Power door lock system
Power window main switch (door lock and unlock switch)
Power window sub switch (passenger side)
(door lock and unlock switch)All-door locking actuator
Power supply (IGN) to power win-
dow, sunroofIgnition power supply Power window and sunroof system
Power supply (BAT) to power
window, sunroof and power seatBattery power supplyPower window, sunroof system and
power seat
Panic alarm
Key slot
Intelligent KeyIPDM E/R
Theft warning system
All-door switch
Hood switch
Intelligent Key
Power window main switch (door lock and unlock switch)
IPDM E/R
Security indicator lamp
Auto light system
Optical sensor
Combination switchIPDM E/R
Battery saver control
Ignition switch
Combination switchIPDM E/R
Headlamp
Tail lamp
Front fog lampCombination switch IPDM E/R
Turn signal lamp Combination switch
Turn signal lamp
Combination meter
Hazard lamp Hazard switch
Turn signal lamp
Combination meter
Room lamp timer
Key switch
Power window main switch (door lock and unlock switch)
Front door switch driver side
All-door switchInterior room lamp
Key warning chime*
1Key switch
Front door switch driver sideCombination meter (warning buzzer)
Light warning chime
Combination switch
Front door switch driver sideCombination meter (warning buzzer)
Seat belt warning chime
Combination meter [Seat belt buckle (driver side) switch]
Ignition switchCombination meter (warning buzzer)
Vehicle-speed-sensing intermit-
tent wiper
Combination switch
Unified meter and A/C amp.IPDM E/R
Rear window defogger
Multifunction switch
NAVI control unit*2
AV control unit*3
IPDM E/R

BL-2Revision: 2006 January2006 M35/M45 CHANGE SETTINGS FUNCTION ....................... 60
INTELLIGENT KEY REGISTRATION .................. 60
STEERING LOCK UNIT REGISTRATION .......... 60
CAN Communication System Description .............. 60
CAN Communication Unit ....................................... 60
Schematic ............................................................... 61
Wiring Diagram — I/KEY— .................................... 63
Terminals and Reference Value for Intelligent Key
Unit ......................................................................... 74
Terminals and Reference Value for BCM ................ 77
Terminals and Reference Value for IPDM E/R ........ 77
Trouble Diagnosis Procedure ................................. 78
WORK FLOW ...................................................... 78
CONSULT-II Functions (INTELLIGENT KEY) ........ 80
CONSULT-II Inspection Procedure ......................... 80
BASIC OPERATION ............................................ 80
CONSULT-II Application Items ............................... 81
SELF-DIAGNOSTIC RESULTS ........................... 81
DATA MONITOR .................................................. 82
WORK SUPPORT ............................................... 83
ACTIVE TEST ..................................................... 84
Trouble Diagnosis Symptom Chart ......................... 86
ALL FUNCTIONS OF INTELLIGENT KEY SYS-
TEM DOES NOT OPERATE ............................... 86
DOOR LOCK/UNLOCK FUNCTION MALFUNC-
TION .................................................................... 86
REMOTE KEYLESS ENTRY FUNCTION MAL-
FUNCTION .......................................................... 87
TRUNK OPEN FUNCTION MALFUNCTION ...... 88
HAZARD AND BUZZER REMINDER FUNC-
TION MALFUNCTION ......................................... 89
HAZARD AND HORN REMINDER FUNCTION
MALFUNCTION ................................................... 89
POWER WINDOW DOWN FUNCTION MAL-
FUNCTION .......................................................... 90
WARNING FUNCTION MALFUNCTION ............. 90
Check CAN Communication System ...................... 92
Check Power Supply and Ground Circuit ............... 93
Check Key Slot ....................................................... 94
Check Door Switch ..............................................
... 96
Check Trunk Room Lamp Switch ........................... 99
Check Door Request Switch .................................101
Check Trunk Opener Request Switch ..................103
Check Unlock Sensor ...........................................105
Check Intelligent Key Warning Buzzer .................107
Check Outside Key Antenna (Driver Side and Pas-
senger Side) .........................................................108
Check Outside Key Antenna (Trunk Room) .........110
Check Inside Key Antenna ...................................112
Check Park Position Switch ..................................115
Check Ignition Switch Position .............................117
Check Remote Keyless Entry Receiver ................117
Check Trunk Lid Opener Cancel Switch ...............121
Check Key Slot Illumination ..................................123
Check Horn Function ............................................124
Check Combination Meter Display Function .........124
Check Warning Chime Function ...........................125
Removal and Installation of Intelligent Key Unit ...125
REMOVAL ........................................................
.125INSTALLATION ..................................................125
Intelligent Key Battery Replacement .....................126
DISASSEMBLY AND ASSEMBLY OF INTELLI-
GENT KEY .........................................................126
INTELLIGENT KEY BATTERY INSPECTION ...126
INTELLIGENT KEY SYSTEM/ENGINE START
FUNCTION ..............................................................127
Component Parts and Harness Connector Location .127
System Description ...............................................128
PRECAUTIONS FOR INTELLIGENT KEY SYS-
TEM ...................................................................129
Operation Description ...........................................129
SYSTEM DIAGRAM ..........................................129
OPERATION WHEN INTELLIGENT KEY IS
CARRIED ...........................................................129
OPERATION WHEN KEY SLOT IS USED ........130
PUSH-BUTTON IGNITION SWITCH OPERA-
TION PROCEDURE ..........................................130
CAN Communication System Description ............131
CAN Communication Unit .....................................131
Schematic .............................................................132
Wiring Diagram —ENG/ST— ................................134
Terminals and Reference Value for Intelligent Key
Unit ........................................................................143
Terminals and Reference Value for Steering Lock
Unit ........................................................................146
Terminals and Reference Value for BCM ..............147
Terminals and Reference Value for IPDM E/R ......147
Terminals and Reference Value for PDU ..............148
Work Flow .............................................................149
CONSULT-II Functions (INTELLIGENT KEY) .......151
CONSULT-II Inspection Procedure .......................151
BASIC OPERATION ..........................................151
CONSULT-II Application Items ..............................152
SELF-DIAGNOSTIC RESULTS .........................152
DATA MONITOR ................................................153
WORK SUPPORT .............................................154
ACTIVE TEST ....................................................155
DTC B2013 STRG COMM 1 .................................157
DIAGNOSIS DESCRIPTION .............................157
TERMINALS AND REFERENCE VALUE FOR
INTELLIGENT KEY UNIT ..................................157
SELF-DIAGNOSTIC LOGIC ..............................157
DIAGNOSTIC PROCEDURE .............................157
DTC B2551 STEERING LOCK UNIT ....................159
DIAGNOSIS DESCRIPTION .............................159
TERMINALS AND REFERENCE VALUE ..........159
SELF-DIAGNOSTIC LOGIC .............................
.160
DIAGNOSTIC PROCEDURE .............................160
DTC B2552 INTELLIGENT KEY ...........................163
DIAGNOSIS DESCRIPTION .............................163
DTC B2553 IGN POWER CIRCUIT ......................163
DIAGNOSIS DESCRIPTION .............................163
TERMINAL AND REFERENCE VALUE FOR
INTELLIGENT KEY UNIT ..................................163
CONSULT-II DATA MONITOR STANDARD
VALUE ...............................................................163
SELF-DIAGNOSTIC LOGIC ..............................164
DIAGNOSTIC PROCEDURE .............................164

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
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Revision: 2006 January2006 M35/M45
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30
50 mm (1.181.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15
25 mm (0.590.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit. Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingNIS001WH
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.