Nissan Pathfinder (2008 year). Manual — part 475
LAN
DIAGNOSIS AND REPAIR WORKFLOW
LAN-55
< BASIC INSPECTION >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Diagnosis Sheet (CAN Type 16)
INFOID:0000000001317408
JPMIA0336GB
LAN-56
< FUNCTION DIAGNOSIS >
[CAN]
CAN COMMUNICATION SYSTEM
FUNCTION DIAGNOSIS
CAN COMMUNICATION SYSTEM
CAN System Specification Chart
INFOID:0000000001316386
Determine CAN system type from the following specification chart. Then choose the correct diagnosis sheet.
NOTE:
Refer to
LAN-14, "Trouble Diagnosis Procedure"
for how to use CAN system specification chart.
×
: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Body type
Wagon
Axle
2WD
4WD
(Part time)
4WD (All-mode)
Engine
VQ40DE
VK56DE
VQ40DE
VK56DE
Transmission
A/T
Brake control
VDC
Intelligent Key system
×
×
×
×
Automatic drive posi-
tioner
×
×
×
×
×
×
×
×
Color display
×
×
×
×
×
×
×
×
×
×
×
×
×
Automatic air condition-
er
×
×
×
×
×
×
×
×
×
×
×
×
×
CAN system type
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Diagnosis sheet
LAN
CAN COMMUNICATION SYSTEM
LAN-57
< FUNCTION DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Check CAN system type from the vehicle shape and equipment.
CAN Communication Signal Chart
INFOID:0000000001316387
LAN-13, "How to Use CAN Communication Signal Chart"
for how to use CAN communication signal
chart.
NOTE:
Refer to
for the abbreviations of the connecting units.
T: Transmit
R: Receive
ALMIA0184GB
Signal name/Connecting unit
ECM
TCM
I-KEY
4W
D
*1
4W
D
*2
ADP
AV
BCM
HV
AC
*3
M&A
STRG
ABS
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
LAN-58
< FUNCTION DIAGNOSIS >
[CAN]
CAN COMMUNICATION SYSTEM
Battery voltage signal
T
R
Closed throttle position signal
T
R
Cooling fan speed request signal
T
R
Engine coolant temperature signal
T
R
R
Engine speed signal
T
R
R
R
R
R
R
R
R
Engine status signal
T
R
Fuel consumption monitor signal
T
R
R
T
Malfunction indicator lamp signal
T
R
Power generation command value signal
T
R
Wide open throttle position signal
T
R
A/T fluid temperature sensor signal
T
R
A/T position indicator lamp signal
T
R
R
R
A/T self-diagnosis signal
R
T
O/D OFF indicator signal
T
R
Output shaft revolution signal
R
T
R
R
P range signal
T
R
R
R
Turbine revolution signal
R
T
Buzzer output signal
T
R
T
R
Door lock/unlock request signal
T
R
Hazard request signal
T
R
Hazard warning lamp request signal
T
R
Ignition knob switch signal
T
R
KEY warning signal
T
R
LOCK warning signal
T
R
Panic alarm request signal
T
R
Power window open request signal
T
R
System setting signal
T
R
T
R
T
R
A/C switch/indicator signal
T
R
R
T
A/C switch signal
R
T
R
Blower fan motor switch signal
R
T
Day time running light request signal
T
R
R
Door lock/unlock status signal
R
T
Door switch signal
R
R
R
T
R
R
Front fog light request signal
T
R
R
Front wiper request signal
T
R
High beam request signal
T
R
R
Horn chirp signal
T
R
Ignition switch signal
R
R
T
R
Key fob door unlock signal
R
T
Signal name/Connecting unit
ECM
TCM
I-KEY
4W
D
*1
4W
D
*2
ADP
AV
BCM
HV
A
C
*3
M&A
STRG
ABS
IPDM
-E
LAN
CAN COMMUNICATION SYSTEM
LAN-59
< FUNCTION DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
• *1: Part time 4WD models
• *2: All-mode 4WD models
• *3: Models with automatic air conditioner
• *4: Models with HDC
• *5: Models without manual mode
• *6: Models with manual mode
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Key fob ID signal
R
T
Key switch signal
R
T
Low beam request signal
T
R
Position light request signal
T
R
R
Rear window defogger switch signal
T
R
Sleep wake up signal
R
T
R
R
Theft warning horn request signal
T
R
Tire pressure data signal
R
T
Tire pressure signal
R
T
R
Turn indicator signal
T
R
1st position switch signal
*5
R
T
Distance to empty signal
R
T
Fuel level low warning signal
R
T
Fuel level sensor signal
R
T
Manual mode shift down signal
*6
R
T
Manual mode shift up signal
*6
R
T
Manual mode signal
*6
R
T
Not manual mode signal
*6
R
T
Overdrive control switch signal
*5
R
T
Seat belt buckle switch signal
R
T
Stop lamp switch signal
R
T
R
T
Vehicle speed signal
R
R
R
R
R
R
R
T
R
R
R
R
T
Steering angle sensor signal
T
R
ABS warning lamp signal
R
T
Brake warning lamp signal
R
T
HDC indicator lamp signal
*4
R
T
SLIP indicator lamp signal
R
T
VDC OFF indicator lamp signal
R
T
Front wiper stop position signal
R
T
High beam status signal
R
T
Low beam status signal
R
T
Rear window defogger control signal
R
T
Signal name/Connecting unit
ECM
TCM
I-KEY
4W
D
*1
4W
D
*2
ADP
AV
BCM
HV
A
C
*3
M&A
STRG
ABS
IPDM
-E
LAN-60
< FUNCTION DIAGNOSIS >
[CAN]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
CAN Diagnostic Support Monitor
INFOID:0000000001316388
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-III)
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.
TCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
Intelligent Key Unit
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
ECM
TRANSMIT DIAG
Signal transmission status
OK
OK
or
1 – 39
*
UNKWN
0
VDC/TCS/ABS
Signal receiving status from the ABS actua-
tor and electric unit (control unit)
METER/M&A
Signal receiving status from the combina-
tion meter
BCM/SEC
Signal receiving status from the BCM
ICC
Not used even though indicated
HVAC
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
AWD/4WD
Signal receiving status from the transfer
control unit
OK
OK
or
1 – 39
*
UNKWN
0
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
TCM
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 (con-
trol unit)
METER/M&A
Signal receiving status from the combination meter
ICC/e4WD
Not used even though indicated
AWD/4WD
Signal receiving status from the transfer control unit
OK
UNKWN
LAN
TROUBLE DIAGNOSIS
LAN-61
< FUNCTION DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
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.
Transfer Control Unit (All-mode 4WD)
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.
Transfer Control Unit (Part Time 4WD)
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
Driver Seat Control 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.
AV Control Unit
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
I-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 combina-
tion meter
BCM/SEC
Signal receiving status from the BCM
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
4WD
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 actua-
tor and electric unit (control unit)
TCM
Signal receiving status from the TCM
STRG
Signal receiving status from the steering an-
gle sensor
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
4WD
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 (con-
trol unit)
TCM
Signal receiving status from the TCM
METER/M&A
Signal receiving status from the combination meter
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
ADP
TRANSMIT DIAG
Not used even though indicated
METER/M&A
Signal receiving status from the combina-
tion meter
OK
OK
or
1 – 39
*
UNKWN
0
BCM/SEC
Signal receiving status from the BCM
TCM
Signal receiving status from the TCM
LAN-62
< FUNCTION DIAGNOSIS >
[CAN]
TROUBLE DIAGNOSIS
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.
BCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
A/C Auto Amp.
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
PAST
PRSNT
PAST
AV
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 combina-
tion meter
BCM/SEC
Signal receiving status from the BCM
HVAC
Signal receiving status from the A/C auto
amp.
STRG
Not used even though indicated
IPDM E/R
Signal receiving status from the IPDM E/R
OK
OK
or
1 – 39
*
UNKWN
0
TIRE-P
Not used even though indicated
ITEM
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 combination meter
I-KEY
Not used even though indicated
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