Infiniti M35/M45 Y50. Manual — part 850
TROUBLE DIAGNOSIS
LAN-49
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
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.
ICC sensor integrated 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.
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
Signal receiving status from the ICC sensor integrated unit
AWD/4WD
Signal receiving status from the AWD control unit
RAS C/U
Signal receiving status from the RAS control unit
SELECT SYS-
TEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
ICC
TRANSMIT DIAG
Signal transmission status
OK
OK
or
1 – 39
*
UNKWN
0
ECM
Signal receiving status from the ECM
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
TCM
Signal receiving status from the TCM
STRG
Not used even though indicated
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-50
[CAN]
TROUBLE DIAGNOSIS
CAN System Specification Chart
NKS004FU
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
for how to use CAN system specification chart.
×
: Applicable
Body type
Sedan
Axle
2WD
AWD
Engine
VQ35DE/VK45DE
VQ35DE
Transmission
A/T
Brake control
VDC
Adaptive front-lighting system
×
×
×
×
×
×
×
×
Lane departure warning
×
×
×
Navigation system
×
×
×
×
×
×
Rear active steer
×
×
×
ICC system
×
×
×
CAN system type
1
2
3
4
5
6
7
8
9
10
11
Diagnosis sheet
CAN communication signal chart
TROUBLE DIAGNOSIS
LAN-51
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
PKID0330E
LAN-52
[CAN]
TROUBLE DIAGNOSIS
CAN Communication Signal Chart
NKS004FV
LAN-15, "How to Use CAN Communication Signal Chart"
for how to use CAN communication signal
chart.
TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7
NOTE:
Refer to
for the abbreviations of the connecting units.
T: Transmit
R: Receive
Signals
ECM
AF
S
*1
BCM
LAN
E
*2
TCM
AV
I-
KEY
M&
A
STRG
TPM
S
RAS
*3
PSB
ADP
ABS
ICC
*4
IPDM-
E
A/C compressor request signal
T
R
Accelerator pedal position signal
T
R
R
R
ASCD CRUISE lamp signal
T
R
ASCD OD cancel request signal
T
R
ASCD operation signal
T
R
ASCD SET lamp signal
T
R
Battery voltage signal
T
R
Closed throttle position signal
T
R
R
Cooling fan speed request signal
T
R
Engine coolant temperature signal
T
R
Engine speed signal
T
R
R
R
R
R
R
Engine status signal
T
R
R
R
Fuel consumption monitor signal
T
R
R
ICC brake switch signal
T
R
ICC prohibition signal
T
R
ICC steering switch signal
T
R
Malfunctioning indicator lamp signal
T
R
Power generation command value signal
T
R
Stop lamp switch signal
T
R
R
T
T
R
Wide open throttle position signal
T
R
AFS OFF indicator signal
T
R
A/C switch signal
R
T
ACC signal
T
R
R
Blower fan motor switch signal
R
T
Buzzer output signal
T
R
T
R
R
T
Day time running light request signal
T
R
Door lock/unlock status signal
T
R
Door switch signal
T
R
R
R
R
R
Door unlock signal
T
R
Front fog light request signal
T
R
R
Front wiper request signal
T
R
R
High beam request signal
T
R
R
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