control INFINITI FX35 2004 Service Manual

AV-184
INFINITI MOBILE ENTERTAINMENT SYSTEM
Revision: 2004 November 2004 FX35/FX45
INFINITI MOBILE ENTERTAINMENT SYSTEMPFP:28184
System DescriptionAKS00BOU
Refer to Owner's Manual for mobile entertainment system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to DVD player terminal 16

through DVD player terminals 31 and 32

to DVD display terminals 15 and 16.
With the ignition switch in the ACC or ON position, power is supplied

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

to DVD player terminal 15

through DVD player terminal 21

to DVD display terminal 5.
Ground is supplied

to DVD player terminal 22

through body ground B15 and B45

to DVD player terminals 19, 27

through DVD display terminals 6, 10 and 12.
When DVD player power switch is ON, power is supplied

through DVD player terminal 9

to audio unit terminal 38

through audio unit terminal 40

to DVD player terminal 11.
When DVD player power switch is ON, DVD sound signals are supplied

through DVD player terminals 17, 18, and 20

to DVD display terminals 1, 2 and 4.
DVD sound can be heard by the head phone.
When rear AV switch is ON, audio signals are supplied

through DVD player terminals 1, 2, 3, and 4

to audio unit terminals 37, 39, 42, and 43.
DVD sound can be heard from the speaker.
When DVD player power switch is ON, video signals are supplied

through DVD player terminals 23 and 24

to DVD display terminals 7 and 8.
When remote controller is operated, operation signals are supplied

through DVD display terminal 14

to DVD player terminal 30

through DVD player terminal 29

to DVD display terminal 13.

AV-188
INFINITI MOBILE ENTERTAINMENT SYSTEM
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for DVD PlayerAKS00BOX
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of symp-
tom
(+) (-)Ignition
switchOperation
1 (L) 2 (R)MES output
signal (LH)
Output ACCRear AV
switch is ONNo sound
from speaker LH
3 (LG) 4 (PU)MES output
signal (RH)No sound
from speaker RH
8–Shield – – – – –
9
(Y/B)GroundAudio ON
signal (MES -
H/U) Output ACCPush “POWER”
switch of DVD
playerApprox. 5VSystem dose not
work properly
10
(R/Y)GroundIllumination
control signalInput OFFIllumination con-
trol switch is oper-
ated by lighting
switch in 1st posi-
tion.Changes between approx. 0 and
approx. 12V.DVD player illumi-
nation does not
come on then light-
ing switch is ON
11
(L/W)GroundControl sig-
nal (H/U -
MES)Input ACCPush “POWER”
switch of DVD
playerApprox. 5VSystem dose not
work properly
12
(R/L)GroundIllumination
signalInput OFFLighting switch is
ON (1st position).Approx. 12VDVD player illumi-
nation dose not
come on then light-
ing switch is ON Lighting switch
OFF.Approx. 0V
15
(LG/R)GroundACC power
supplyInput ACC – Battery voltageSystem does not
work properly
16
(W/L)GroundBattery
power supplyInput OFF – Battery voltageSystem dose not
work properly
17 (G) 19 (LG)MES output
signal (Com-
mon)Output ACCPlay CD or DVD
videoApprox. 0V –
18 (L) 19 (LG)MES output
signal (L+)Output ACCPlay CD or DVD
videoNo sound from
head phone LH
19 (LG) Ground Ground – ON – Approx. 0V –
20 (Y) 19 (LG)MES output
signal (R+)Output ACCPlay CD or DVD
videoNo sound from
head phone RH
21 (L) GroundACC power
supplyOutput ACC – Approx. 5VDisplay does not
work properly
22 (B) Ground Ground – ON – Approx. 0V –
SKIA0177E
SKIA5828E
SKIA5828E

INFINITI MOBILE ENTERTAINMENT SYSTEM
AV-189
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Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for DVD DisplayAKS00BOY
23
(OR)24 (W)VIDEO out-
put signalOutput ACC Play DVD video No picture
26 GroundShield
(Video)– ON – Approx. 0V –
27 (PU) Ground Ground – ON – Approx. 0V –
29
(GY)GroundDVD commu-
nication sig-
nal TX (DVD
- LCD)Output ACCPush “POWER”
switch of DVD
player Display does not
work properly
30 (BR) GroundDVD commu-
nication sig-
nal RX (LCD
- DVD)Input ACCPush “POWER”
switch of DVD
playerRemote controler is
not work
31 (Y)
GroundBattery
power supplyOutput – – Battery voltageDisplay dose not
work properly
32 (R)Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of symp-
tom
(+) (-)Ignition
switchOperation
SKIA8863J
SKIB0322E
SKIA5832E
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
(+) (-)Ignition
switchOperation
1 (G) 3MES input
signal (com-
mon)Input ACCPlay CD or DVD
videoApprox. 0V –
2 (L) 3MES input
signal (L+)Input ACCPlay CD or DVD
videoNo sound from
head phone LH
3 Ground Shield – ON – Approx. 0V –
4 (Y) 3MES input
signal (R+)Input ACCPlay cd or DVD
videoNo sound from
head phone RH
SKIA5828E
SKIA5828E

AV-192
INFINITI MOBILE ENTERTAINMENT SYSTEM
Revision: 2004 November 2004 FX35/FX45
4. CHECK HARNESS
1. Disconnect audio unit connector.
2. Check continuity between DVD player harness connector M73
terminals 9 (Y/B), 11 (L/W) and audio unit harness connector
M65 terminals 38 (Y/B), 40 (L/W).
3. Check continuity between DVD player harness connector M73
terminal 9 (Y/B), 11 (L/W) and ground.
OK or NG
OK >> GO TO 5
NG >> Repair harness or connector.
5. CHECK CONTROL SIGNAL
1. Connect DVD player connector and audio unit connector.
2. Turn ignition switch ACC.
3. Check voltage between DVD player harness connector M73 ter-
minal 9 (Y/B) and ground.
OK or NG
OK >> GO TO 6
NG >> Replace DVD player.
6. CHECK CONTROL SIGNAL
1. Check voltage between DVD player harness connector M73 ter-
minal 11 (L/W) and ground.
OK or NG
OK >> Replace DVD player.
NG >> Replace audio unit.9 – 38 : Continuity should exist.
11 – 40 : Continuity should exist.
9, 11 – Ground : Continuity should not exist.
SKIB0513E
Terminals
Condition Voltage (+)
(-)
ConnectorTerminal
(Wire color)
M739
(Y/B)GroundPush “power”
switch of DVD-
player Approx. 5V
SKIB0326E
Terminals
Condition Voltage (+)
(-)
ConnectorTerminal
(Wire color)
M7311
(L/W)GroundPush “power”
switch of DVD
playerApprox. 5V
SKIB0328E

AV-196
INFINITI MOBILE ENTERTAINMENT SYSTEM
Revision: 2004 November 2004 FX35/FX45
4. CHECK MES SOUND SIGNAL
1. Connect DVD player connector and DVD display connector.
2. Turn the ignition switch ACC and push “POWER” switch of DVD
player.
3. Check the signal between DVD player harness connector B19
terminals 17 (G), 18 (L), 20 (Y) and 19 (LG) with CONSULT-II or
oscilloscope.
OK or NG
OK >> Replace DVD display.
NG >> Replace DVD player.
Remote Controller Is Not WorkAKS00BP3
1. CHECK DVD PLAYER OPERATION SWITCH
1. Turn ignition switch ACC.
2. Push “POWER” switch of DVD player and operate DVD player switch.
Dose the DVD player switches work?
YES >> Replace remote controller.
NO >> GO TO 2
2. CHECK REMOTE CONTROLLER AND SENSOR
Check the inspection items below to diagnose the malfunction.

Check that remote controller is facing to the sensor.

Check that sensor does not have any seals or dirt that is inter-
rupting signal.

Check that the remote controller battery has run down.
OK or NG
OK >> GO TO 3
NG >>

When operating, face remote controller to the sensor.

Remove seal or dirt that is interrupting signal.

If the battery has run down, replace it with new one.
Te r m i n a l
Condition Reference value
(+) (-)
17
19 Play CD or DVD videoRefer to AV- 1 8 8 , "
Te r m i -
nals and Reference Value
for DVD Player" . 18
20SKIB0517E
SKIA5855E

BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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SECTION BCS
A
B
BCS
Revision: 2004 November 2004 FX35/FX45
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 .................... 5
BCM STATUS CONTROL ..................................... 6
SYSTEMS CONTROLLED BY BCM DIRECTLY ..... 7
SYSTEMS CONTROLLED BY BCM AND IPDM
E/R ........................................................................ 7
SYSTEMS CONTROLLED BY BCM AND COM-
BINATION METER ................................................ 7SYSTEMS CONTROLLED BY BCM AND INTEL-
LIGENT KEY UNIT ................................................ 7
MAJOR COMPONENTS AND CONTROL SYS-
TEM ....................................................................... 8
CAN Communication Unit ......................................... 9
Schematic ............................................................... 10
CONSULT-II ............................................................ 12
CONSULT–II INSPECTION PROCEDURE ......... 12
ITEMS OF EACH PART ...................................... 13
WORK SUPPORT ............................................... 14
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 14
Removal and Installation of BCM ........................... 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 15

BCM (BODY CONTROL MODULE)
BCS-3
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BCS
Revision: 2004 November 2004 FX35/FX45
BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionAKS00587

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 unified meter and A/C amp., and send signals
to ECM using CAN communication.
COMBINATION SWITCH READING FUNCTION
1. Description

BCM reads combination switch (light, wiper) status, and controls related systems such as head lamps
and wipers, according to the results.

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
2. 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
voltage of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects
voltage change, and BCM determines that switch is ON.
3. BCM - Operation table of combination switches
SKIA4958E

BCS-4
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45

BCM reads operation status of combination switch using combinations shown in table below.
NOTE:
Headlamp has a dual system switch.
4. Sample operation: (When lighting switch 1st position turned ON)

When lighting switch 1st position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.

When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges that light-
ing switch 1st position is ON. Then BCM sends tail lamp ON signal to IPDM E/R using CAN communi-
cation.

When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5, and rec-
ognizes that lighting switch 1st position is continuously ON.
SKIA4959E
SKIA4960E

BCM (BODY CONTROL MODULE)
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Revision: 2004 November 2004 FX35/FX45
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON,
electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by
human senses.
5. Operation mode

Combination switch reading function has operation modes shown below.
a. Normal status

When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
b. Sleep status

When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low cur-
rent consumption mode. OUTPUT (2, 3, and 4) turn ON-OFF every 10 ms, and only input from light
switch system is accepted.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information transmission through the two communication lines (CAN
L line, CAN H line) connecting the various control units in the system. Each control unit transmits/receives
data but selectively reads required data only. For details of signals that are transmitted/received by BCM via
CAN communication, refer to LAN-6, "
CAN Communication Unit" .
SKIA4961E

BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
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, CAN communication switches to inac-
tive 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 switches to
inactive status.
4. Sleep status

BCM is activated with low current consumption 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 state.
–Key switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH)
–Back door opener switch
–Combination switch (passing, lighting switch 1st position, Front fog lamp)
–Key fob (lock/unlock signal)
–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.