ACS-30
[ICC]
TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
Revision: 2006 January2006 M35/M45
Display Item List
Laser Beam Adjust
For details, refer to ACS-13, "LASER BEAM AIMING ADJUSTMENT" .
SELF-DIAGNOSTIC RESULTS
For details, refer to ACS-39, "Diagnostic Trouble Code (DTC) Chart" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch any of “MAIN SIGNALS” and “SELECTION FROM
MENU” on selection screen.
3. Touch “START”.
4. Display the data monitor.
5. Touch “COPY” to print data if necessary.
Monitored Item
: Applicable Cause of cancellation Description
OPERATING WIPER Windshield wipers were operated at HI or LO speed operation.
OPERATING ABS ABS function was operated.
OPERATING TCS TCS function was operated.
OPERATING VDC VDC function was operated.
OPE SW VOLT CIRC Outside the standard control switch input voltage was detected.
ECM CIRCUIT ECM did not permit ICC operation.
LASER SUN BEAM Intense light such as sunlight entered ICC sensor integrated unit light sensing part.
LASER TEMP Temperature around ICC sensor integrated unit became low.
OP SW DOUBLE TOUCH ICC steering switches were pressed at the same time.
WHL SPD ELEC NOISE Wheel speed sensor signal caught electromagnetic noise.
VDC/TCS OFF SW VDC OFF switch was pressed.
WHEEL SPD UNMATCH Wheel speed became different from A/T vehicle speed.
TIRE SLIP Wheel slipped.
IGN LOW VOLT Power supply voltage became low.
SNOW MODE SW Snow mode switch was pressed.
VHCL SPD DOWN Vehicle speed becomes 20 MPH (32 km/h for CANADA models) and under.
VHCL SPD UNMATCH Vehicle speed becomes unusual.
NO RECORD —
PKIB8365E
Monitored Item [unit]MAIN
SIGNALSSELEC-
TION FROM
MENUDescription
VHCL SPEED SE
[km/h] or [mph]
Indicates vehicle speed calculated from ICC sensor integrated unit through
CAN communication [ABS actuator and electric unit (control unit) transmits
vehicle speed signal (wheel speed) through CAN communication].
SET VHCL SPD
[km/h] or [mph]
Indicates set vehicle speed memorized in ICC sensor integrated unit.
THRTL OPENING
[%]
Indicates throttle position read from ICC sensor integrated unit through CAN
communication (ECM transmits accelerator pedal position signal through
CAN communication).
ON BOARD DIAGNOSTIC (OBD) SYSTEM
AT-43
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Revision: 2006 January2006 M35/M45
HOW TO ERASE DTC (WITH GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform AT-103, "
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)" . (The engine warm-up step
can be skipped when performing the diagnosis only to erase the DTC.)
3. Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-146, "
Generic Scan Tool (GST)
Function" (for VQ35DE engine), EC-859, "Generic Scan Tool (GST) Function" (for VK45DE engine).
HOW TO ERASE DTC (NO TOOLS)
The A/T CHECK indicator lamp is located on the instrument panel.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform AT-103, "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step
can be skipped when performing the diagnosis only to erase the DTC.)
3. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No tools)”. Refer to EC-67, "
How to Erase DTC"
(for VQ35DE engine), EC-778, "How to Erase DTC" (for VK45DE engine).
Malfunction Indicator Lamp (MIL)NCS001K1
DESCRIPTION
The MIL is located on the combination meters.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-40, "WARNING LAMPS" ,
or see EC-722, "
MIL AND DATA LINK CONNECTOR" (for
VQ35DE engine), EC-1459, "
MIL AND DATA LINK CONNEC-
TOR" (for VK45DE engine).
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
SEF217U
AV-92
[WITHOUT MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2006 January2006 M35/M45
VEHICLE SIGNALS
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
SPEAKER TEST
When selecting “Speaker Test”, speaker diagnosis screen is dis-
played. When pressing “Start”, test tone emits from the speaker. At
that time, when pressing “Start”, test tone emits from next speaker.
Then, when pressing the “END”, test tone stops.
NOTE:
The frequency of test tone emitted from each speaker is as follows.
CLIMATE CONTROL
For details, refer to ATC-55, "Self-diagnosis Function" .
SKIB3663E
Diagnosis itemDis-
playVehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed. This is nor-
mal. OFF Vehicle speed = 0 km/h (0 MPH)
— Ignition switch in ACC position
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
–
OFF Light switch OFF
IgnitionON Ignition switch ON
–
OFF Ignition switch in ACC position
ReverseON Selector lever in R position
Changes in indication may be delayed. This is nor-
mal. OFFSelector lever in any position
other than R
— Ignition switch in ACC position
Tw e e t e r : 3 k H z
Front door speaker : 300 Hz
Rear door speaker : 1 kHz
Rear surround speaker : 1 kHz
Center speaker : 1 kHz
Woofer : 100 Hz
Seat speaker : 1 kHz
SKIB3664E
AV-236
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2006 January2006 M35/M45
VEHICLE SIGNALS
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
SPEAKER TEST
When selecting “Speaker Test”, speaker diagnosis screen is dis-
played. When pressing “START”, test tone emits from the speaker.
At that time, when pressing “Start”, test tone emits from next
speaker. Then, when pressing the “End”, test tone stops.
NOTE:
The frequency of test tone emitted from each speaker is as follows.
CLIMATE CONTROL
For details, refer to ATC-55, "Self-diagnosis Function" .
SKIB3663E
Diagnosis item Display Vehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
- Ignition switch in ACC position
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
–
OFF Light switch OFF
IgnitionON Ignition switch ON
-
OFF Ignition switch in ACC position
ReverseON Selector lever in R position
Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal. OFF Selector lever in any position other than R
- Ignition switch in ACC position
Tw e e t e r : 3 k H z
Front door speaker : 300 Hz
Rear door speaker : 1 kHz
Rear surround speaker : 1 kHz
Center speaker : 1 kHz
Woofer : 100 Hz
Seat speaker : 1 kHz
SKIB3664E
BCM (BODY CONTROL MODULE)
BCS-5
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BCS
Revision: 2006 January2006 M35/M45
Sample Operation:
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 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 1ST 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.
PKIC0271E
BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2006 January2006 M35/M45
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
When BCM is in sleep status, transistors of OUTPUT 1 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2-5 send out ON signal every 60 ms, and accept only input from lighting
switch (except turn signal 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-34, "
CAN Communication Unit" .
PKIC0272E
BCS-8
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)
BCS-9
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BCS
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