2008 INFINITI FX35 turn signal

AV-158
< SERVICE INFORMATION >
TELEPHONE
TELEPHONE
System DescriptionINFOID:0000000001328789
HANDS-FREE PHONE SYSTEM
 For Hands-free phone system operation information, refer to Owner's Manual.
 TEL adapter unit has Bluetooth module. It can perform wireless hands-free telephone calls using a cellularphone in vehicle compartment.
 5 or less cellular phones can be registered into the TEL adapter unit.
 Hands-free phone mode starts by transmitting switch signal to TEL adapter unit when pressing button.
 Hands-free phone mode ends by transmitting switch signal to TEL adapter unit when pressing button.
 When uttering to the microphone, microphone signal (audio signal) is transmitted from the microphone to the
TEL adapter unit and transmitted to the cellular phone with the Bluetooth
® communication.
 Audio sound is muted when turning audio ON while hands-free phone system works.
 Sound signal transmits to receiver's telephone through microphone unit, TEL adapter unit, and TEL antenna when sending voice.
 Sound signal outputs to front RH speakers through TEL antenna, TEL adapter unit, audio unit, and BOSE
speaker amp. when receiving voice.
SKIB8653E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AV-170
< SERVICE INFORMATION >
TELEPHONE
2. Check continuity between spiral cable connector M15 terminals24, 31, 32 and spiral cable connector M203 terminals 20, 17, 16.
OK or NG
OK >> GO TO 4.
NG >> Replace spiral cable.
4.CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE
Check resistance audio steering wheel switch terminals.
OK or NG
OK >> INSPECTION END
NG >> Replace audio steering wheel switch.
Voice Activated Control Function Does Not OperateINFOID:0000000001328797
NOTE:
Even under the normal condition, TE L voice guidance may not occur when pressing audio steering wheel
switch.
TEL VOICE GUIDANCE IS HEARD WHEN PR ESSING AUDIO STEERING WHEEL SWITCH
1.CHECK HARNESS BETWEEN TEL ADAPTER UNIT AND MICROPHONE UNIT
1. Turn ignition switch OFF.
2. Disconnect TEL adapter unit and microphone unit connectors.
3. Check continuity between TEL adapter unit harness connector (A) M102 terminals 7, 8, 29 and microphone unit harness con-
nector (B) R59 terminals 5, 6, 4.
4. Check continuity between TEL adapter unit harness connector (A) M102 terminals 7, 8, 29 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK MIC. POWER SUPPLY
1. Connect TEL adapter unit and microphone unit connectors.
2. Turn ignition switch ON. 24 – 20 : Continuity should exist.
31 – 17 : Continuity should exist.
32 – 16 : Continuity should exist.
SKIA5874E
Terminal Signal name Condition
Resistance
(Ω )
16 17Mode Depress mode switch. Approx. 0
Seek down Depress (station) down switch. Approx. 165
Volume (down) Depress volume down switch. Approx. 652
20 PTT Depress PTT switch. Approx. 0
Seek up Depress (station) up switch. Approx. 165
Volume (up) Depress volume up switch. Approx. 652
SKIA5010E
7 – 5 : Continuity should exist.
8 – 6 : Continuity should exist.
29 – 4 : Continuity should exist.
7, 8, 29 – Ground : Continuity should not exist.
SKIB7348E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

TELEPHONEAV-171
< SERVICE INFORMATION >
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3. Check voltage between microphone unit harness connector R59 terminal 4 and ground.
YES or NO
YES >> GO TO 3.
NO >> Replace TEL adapter unit.
3.CHECK MIC. SIGNAL
1. Check signal between TEL adapter unit harness connector M102 terminal 7 and 8.
OK or NG
OK >> Replace TEL adapter unit.
NG >> Replace microphone unit.
TEL VOICE GUIDANCE IS NOT HEARD WHEN PRESSING AUDIO STEERING WHEEL SWITCH
1.CHECK AUDIO STEERING WHEEL SWITCH CIRCUIT
Refer to "Voice Activated Control Function Does Not Operate".
OK or NG
OK >> GO TO 2.
NG >> Replace applicable parts.
2.CHECK TEL VOICE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TEL adapter unit and audio unit connectors.
3. Check continuity between TEL adapter unit harness connector (A) M102 terminals 9, 10, 11 and audio unit harness connector
(B) M60 terminals 31, 30, 32.
4. Check continuity between TEL adapter unit harness connector (A) M102 terminals 9, 10, 11and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK MUTE SIGNAL
1. Connect TEL adapter unit connector and audio unit connectors.
2. Turn ignition switch ON. 4 – Ground : Approx. 5 V
SKIB7349E
7 – 8:
When giving a voice
SKIB7350EPKIB5037J
9 – 31 : Continuity should exist.
10 – 30 : Continuity should exist.
11 – 32 : Continuity should exist.
9, 10, 11 – Ground : Continuity should not exist.
PKIC9370E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCS-4
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE)
System DescriptionINFOID:0000000001328608
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 and turn signal) in addition to a function for cont rolling 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
Description
 BCM reads combination switch (lighting switch, wiper switch) status, and controls various electrical compo-
nent 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, circui t 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 t hat switch changes, interface in BCM detects voltage
change, and BCM determines that switch is ON.
Operation Table Of BCM and Combination Switches
PKID0853E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCM (BODY CONTROL MODULE)BCS-5
< SERVICE INFORMATION >
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BCM reads operation status of combination swit ch using combinations shown in table below.
NOTE:
Headlamp system has a dual switch.
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 OUT-
PUT 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 lighting
switch 1ST position is ON. Then BCM sends tail lamp and clearance lamp request signal to IPDM E/R using
CAN communication.
 When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5, and recog-
nizes that lighting switch 1S T position is continuously ON.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
Operation Mode
Combination switch reading function has operation modes shown below.
1. Normal status When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
2. Sleep status
SKIA4959E
PKID0854E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2, 3, and 4 send out ON signal every 60 ms, and accept input from lighting
switch system.
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-43, "
CAN System Specification Chart".
BCM STATUS CONTROL
BCM changes its status depending on the operation stat us 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 isactive, 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.
 2 seconds after CAN communication of all control units stops, sleep transient status is switched 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.
 3 seconds after CAN communication of all control units stops, CAN communication inactive status is
switched 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 state.
- Key switch
- Hazard switch
PKIC4919E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCM (BODY CONTROL MODULE)BCS-7
< SERVICE INFORMATION >
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- 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.
 Operation mode of combination switch reading function is changed.
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, CO MBINATION METER AND IPDM E/R
System Reference
Power door lock system BL-21
Remote keyless entry systemBL-50
Power window system NOTEGW-15
Sunroof NOTERF-10
Room lamp timerLT- 1 3 8
Rear wiper and washer systemWW-30
System Reference
Panic alarm 
BL-50
BL-76
Theft warning system BL-163
IVIS (NATS)BL-185
HeadlampLT- 5
Daytime light systemLT- 3 2
Auto light systemLT- 4 7
Front fog lampLT- 6 6
 Parking, license plate, side marker and tail lamps
 Exterior lamp battery saver control LT- 11 8
Front wiper and washer system
WW-4
Rear window defoggerGW-60
System Reference
Warning chime DI-51
Turn signal and hazard warning lampsLT- 7 8
Tire pressure monitoring systemWT-10
System Reference
Intelligent Key system BL-76
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BCS-8
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
MAJOR COMPONENTS AND CONTROL SYSTEM
System Reference
Oil pressure warning lamp DI-34
System Input Output
Remote control entry system Key fob  All-door locking actuator
 Fuel lid Lock actuator
 Turn signal lamp (LH, RH)
 Combination meter
Intelligent Key system Intelligent Key unit  All-door locking actuator
 Fuel lid Lock 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 window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seat Battery power supplyPower window, sunroof system and
power seat
Panic alarm  Key switch
 Key fobIPDM E/R
Theft warning system  All-door switch
 Hood switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Power window sub switch (passenger side) (door lock and unlock switch)  IPDM E/R
 Security indicator lamp
Auto light system  Optical sensor
 Combination switch
 Ignition switchIPDM E/R
Exterior lamp battery saver control  Ignition switch
 Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system  Combination meter
ECM
 Combination switch
 Ignition switchIPDM E/R
Parking, license plate, side marker and tail
lamps Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp  Combination switch
 Ignition switch Turn signal lamp
 Combination meter
Hazard lamp Hazard switch  Turn signal lamp
 Combination meter
Room lamp timer  Key switch
 Key fob
 Power window main switch (door lock and
unlock switch)
 Front door switch driver side
 All-door switch Interior room lamp
Key warning chime  Key switch
 Front door switch driver sideCombination meter
(warning buzzer)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C