LAN-34
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 July 2007 FX35/FX45
2. CAN DIAG SUPPORT MNTR (with PAST): Check the CAN DIAG SUPPORT MNTR (with PAST) of units
indicating “U1000” or “U1001” on SELF-DIAG RESULTS. Draw a line on the diagnosis sheet to indicate
the possible error circuit.
NOTE:
For the details of each indication on CAN DIAG SUPPORT MNTR, refer to LAN-44, "
CAN Diagnostic Sup-
port Monitor" .
a. Reception item of “ENGINE”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means ECM could not receive the signal from ABS in the past. Draw a line between ECM and ABS (line 2-a in the figure).
b. Reception item of “METER”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means M&A could not receive the signal from ABS in the past. Draw a line between M&A and ABS (line 2-b in the figure).
c. Reception item of “TRANSMISSION”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means TCM could not receive the signal from ABS in the past. Draw a line between TCM and ABS (line 2-c in the fig-
ure).
SKIB8732E
LAN-44
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSISPFP:00004
CAN Diagnostic Support MonitorNKS004NN
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-II)
ECM
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
AWD Control Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
SELECT SYS-
TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
ENGINE TRANSMIT DIAG Signal transmission status
OK OK
or
1 – 39
*UNKWN 0
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
METER/M&A Signal receiving status from the unified
meter and A/C amp.
BCM/SEC Signal receiving status from the BCM
ICC Signal receiving status from the ICC unit
HVAC Not used even though indicated
TCM Signal receiving status from the TCM OK OK
or
1 – 39
*UNKWN 0
EPS Not used even though indicated
IPDM E/R Signal receiving status from the IPDM E/R OK OK
or
1 – 39
*UNKWN 0
e4WD Not used even though indicated
AW D/4 WD Signal receiving status from the AWD con-
trol unit OK OK
or
1 – 39
*UNKWN 0
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
ALL MODE AWD/
4WD INITIAL DIAG Status of CAN controller
OK NG
TRANSMIT DIAG Signal transmission status
UNKWN
VDC/TCS/ABS Signal receiving status from the ABS actuator and electric unit
(control unit)
ECM Signal receiving status from the ECM
TCM Not used even though indicated
METER/M&A Signal receiving status from the unified meter and A/C amp. OK UNKWN
TROUBLE DIAGNOSIS LAN-45
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
ICC Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
TCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
BCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
SELECT SYS-
TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
ICC INITIAL DIAG Status of CAN controller
OK NG
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM
VDC/TCS/ABS Signal receiving status from the ABS actuator and electric unit
(control unit)
TCM Signal receiving status from the TCM
METER/M&A Not used even though indicated
LANE KEEP
ECM(l)
ICC SENSOR Signal receiving status from the ICC sensor OK UNKWN
STRG
Not used even though indicated
METER/M&A(l)
ERROR(l)
LANE DETEC-
TOR
TCM(l)
BCM/SEC Signal receiving status from the BCM OK UNKWN
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
A/T INITIAL DIAG Status of CAN controller
OK NG
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM
VDC/TCS/ABS Signal receiving status from the ABS actuator and electric unit
(control unit)
METER/M&A Signal receiving status from the unified meter and A/C amp.
ICC/e4WD Signal receiving status from the ICC unit
AWD/4WD Signal receiving status from the AWD control unit
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
BCM INITIAL DIAG Status of CAN controller
OK NG
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM
IPDM E/R Signal receiving status from the IPDM E/R
METER/M&A Signal receiving status from the unified meter and A/C amp.
I-KEY Not used even though indicated
LAN-46
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Intelligent Key Unit
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
LDW Camera Unit
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
Unified Meter and A/C Amp.
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased. SELECT SYS-
TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
INTELLIGENT
KEY TRANSMIT DIAG Signal transmission status
OK OK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
METER/M&A Signal receiving status from the unified
meter and A/C amp.
BCM/SEC Signal receiving status from the BCM
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
LDW TRANSMIT DIAG Not used even though indicated
ECM Signal receiving status from the ECM
OK OK
or
1 – 39
*UNKWN 0
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
BCM/SEC Signal receiving status from the BCM
TCM Signal receiving status from the TCM
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
METER A/C AMP TRANSMIT DIAG Signal transmission status
OK OK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
TCM Signal receiving status from the TCM
BCM/SEC Signal receiving status from the BCM
VDC/TCS/ABS Signal receiving status from the ABS actu-
ator and electric unit (control unit)
IPDM E/R Not used even though indicated
DISPLAY Signal receiving status from the display
control unit OK OK
or
1 – 39
*UNKWN 0
I-KEY Signal receiving status from the Intelligent
Key unit
EPS Not used even though indicated
AW D/4 WD Signal receiving status from the AWD con-
trol unit OK OK
or
1 – 39
*UNKWN 0
e4WD Not used even though indicated
ICC Signal receiving status from the Intelligent
Key unit OK OK
or
1 – 39
*UNKWN 0
LANE KEEP Not used even though indicated
TIRE-P
TROUBLE DIAGNOSIS LAN-47
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
ABS Actuator and Electric Unit (Control Unit)
CAUTION:
Never replace the unit even when “NG” is indicated on the “INITIAL DIAG” at this stage. Follow the trouble diagnosis proce-
dures.
Driver Seat Control Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
IPDM E/R
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF →ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased. SELECT SYS-
TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
ABS INITIAL DIAG Status of CAN controller
OK NG
Caution
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM
TCM Signal receiving status from the TCM
METER/M&A Not used even though indicated
STRG Signal receiving status from the steering angle sensor OK UNKWN
ICC Not used even though indicated
AWD/4WD Signal receiving status from the AWD control unit OK UNKWN
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT
AUTO DRIVE
POS. INITIAL DIAG Status of CAN controller
OK NG
TRANSMIT DIAG Signal transmission status
UNKWN
BCM/SEC Signal receiving status from the BCM
METER/M&A Signal receiving status from the unified meter and A/C amp.
TCM Signal receiving status from the TCM
SELECT SYS- TEM CAN DIAG SUP-
PORT MNTR Description Normal Error
PRSNT PAST PRSNT PAST
IPDM E/R TRANSMIT DIAG Signal transmission status
OK OK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
BCM/SEC Signal receiving status from the BCM
LAN-48
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
MONITOR ITEM LIST (ON-BOARD DIAGNOSIS)
Display Control Unit
NOTE:
CAN diagnostic support monitor of the display control unit is indicated on the vehicle display. Refer to AV- 8 1 ,
"CAN DIAG SUPPORT MONITOR" .
*: The error counter stops counting when it reaches “50” and holds “50” until it is deleted.
PKIB6080E
Unit name Diagnosis item Description Indicated items on CAN DIAG SUPPORT MONITOR
Normal Error
Result indi- cated Error
counter
(Reference) Result indi-
cated Error
counter
(Reference)
Display control
unit CAN_COMM Status of CAN controller
OK 0
or
1 – 50* NG
1 – 50*
CAN_CIRC_1 Signal transmission status
UNKWN
CAN_CIRC_2
Signal receiving status from the
BCM
CAN_CIRC_3 Signal receiving status from the
ECM
CAN_CIRC_4 Not used even though indicated
CAN_CIRC_5 Signal receiving status from the
unified meter and A/C amp. OK 0
or
1 – 50* UNKWN 1 – 50*
CAN_CIRC_6 Not used even though indicated
CAN_CIRC_7 Signal receiving status from the
IPDM E/R OK 0
or
1 – 50* UNKWN 1 – 50*
CAN_CIRC_8 Not used even though indicated
CAN_CIRC_9
TROUBLE DIAGNOSIS LAN-49
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
CAN System Specification ChartNKS004NO
Determine CAN system type from the following specification chart. Then choose the correct diagnosis sheet.
NOTE:
Refer to LAN-19, "
CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION
CHART)" for how to use CAN system specification chart.
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
Body type Wagon
Axle 2WD AWD
Engine VQ35DE VK45DE
Transmission A/T
Brake control VDC
ICC system ×××
Intelligent Key system ×× ××××
Lane departure warning system ×××
CAN system type 12345656
Diagnosis sheet LAN-69
LAN-70LAN-71LAN-72LAN-73LAN-74LAN-73LAN-74
CAN communication signal chart LAN-50, "TYPE 1/
TYPE 2"
LAN-52,
"TYPE 3"
LAN-54, "TYPE 4/
TYPE 5"
LAN-57,
"TYPE 6"
LAN-54,
"TYPE 4/
TYPE 5"
LAN-57,
"TYPE 6"
PKID0615E
LT-8
HEADLAMP - XENON TYPE -
Revision: 2006 July 2007 FX35/FX45
Ground is supplied
to front combination lamp RH and LH terminals 7
through grounds E21, E50 and E51,
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp. that received the high beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned OFF.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 5 , "System Description" .
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-180, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for to the low beam headlamps. Xenon bulbs do not use a filament. Instead, they
produce light when a high voltage current is passed between two tungsten electrodes through a mixture of
xenon (an inert gas) and certain other metal halides. In addition to strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.
The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.
Light output is nearly double that of halogen headlamps, affording increased area of illumination.
Counter-reflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.
Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionNKS002V7
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS002V8
Refer to LAN-49, "CAN System Specification Chart" .