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LAN-37
[CAN FUNDAMENTAL]
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5. Fill out the diagnosis sheet based on information from step 4.
a. The ABS warning lamp turned ON and speedometer did not move: Assume that a possible cause is no
communication between M&A and ABS. Draw a line between M&A and ABS. (Line 5-a in the figure).
b. The tachometer moved normally: Put check marks between ECM and M&A. The circuit between ECM and
M&A is functioning properly (check marks 5-b in the figure).
SKIB8735E
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LAN-38
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW
6. The circuit which has the most amount of lines are the possible cause. Error is detected from ABS actua-
tor and electric unit (control unit) branch line (shaded in the figure).
NOTE:
For abbreviations, refer to LAN-41, "
Abbreviation List" .
7. Perform the inspection procedure for the possible cause. Refer to LAN-69, "
Malfunction Area Chart" .
SKIB8896E
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Past Error — Short Circuit —
When the symptoms listed below exist, a short circuit of the CAN communication line is a possible cause.
Item (CONSULT-II) Indication Inspection procedure
SELF-DIAG RESULTS “U1000” and “U1001” is indicated in the past for most units.
Refer to LAN-69, "
Malfunction
Area Chart" .
CAN DIAG SUPPORT MNTROnly on CAN DIAG SUPPORT MNTR (with PAST), “1 - 39” is
indicated on “PAST” of “TRANSMIT DIAG” and the reception
item.
SKIB8897E
Page 2644 of 3502
![NISSAN TEANA 2003 Service Manual LAN-40
[CAN]
INDEX FOR DTC
[CAN]INDEX FOR DTCPFP:00004
DTC No. IndexBKS002DG
DTCSelf-diagnosis item
(CONSULT-II indication)DTC detection condition Inspection
U1000 CAN COMM CIRCUITWhen ECM is not t NISSAN TEANA 2003 Service Manual LAN-40
[CAN]
INDEX FOR DTC
[CAN]INDEX FOR DTCPFP:00004
DTC No. IndexBKS002DG
DTCSelf-diagnosis item
(CONSULT-II indication)DTC detection condition Inspection
U1000 CAN COMM CIRCUITWhen ECM is not t](/manual-img/5/57392/w960_57392-2643.png)
LAN-40
[CAN]
INDEX FOR DTC
[CAN]INDEX FOR DTCPFP:00004
DTC No. IndexBKS002DG
DTCSelf-diagnosis item
(CONSULT-II indication)DTC detection condition Inspection
U1000 CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN
communication signal of OBD (emission-related
diagnosis) for 2 seconds or more.
Refer to LAN-41, "
HOW
TO USE THIS SEC-
TION" . When a control unit (except for ECM) is not
transmitting or receiving CAN communication
signal for 2 seconds or more.
U1001 CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN
communication signal other than OBD (emis-
sion-related diagnosis) for 2 seconds or more.
U1002 SYSTEM COMMWhen a control unit is not transmitting or receiv-
ing CAN communication signal for 2 seconds or
less.Start the inspection.
Refer to the applicable
section of the indicated
control unit.
U1010 CONTROL UNIT [CAN]When an error is detected during the initial diag-
nosis for CAN controller of each control unit.Replace the control unit
indicating “U1010”.
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![NISSAN TEANA 2003 Service Manual HOW TO USE THIS SECTION
LAN-41
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HOW TO USE THIS SECTIONPFP:00008
CautionBKS002DH
This section describes information specific to a vehicle, sheets for trouble diagnos NISSAN TEANA 2003 Service Manual HOW TO USE THIS SECTION
LAN-41
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HOW TO USE THIS SECTIONPFP:00008
CautionBKS002DH
This section describes information specific to a vehicle, sheets for trouble diagnos](/manual-img/5/57392/w960_57392-2644.png)
HOW TO USE THIS SECTION
LAN-41
[CAN]
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HOW TO USE THIS SECTIONPFP:00008
CautionBKS002DH
This section describes information specific to a vehicle, sheets for trouble diagnosis, and inspection pro-
cedures.
For trouble diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Procedure" .
Abbreviation ListBKS002DI
Abbreviations in CAN communication signal chart and the diagnosis sheet are as per the following list.
Abbreviation Unit nameSELECT SYSTEM
(CONSULT-II)CAN DIAG SUPPORT MNTR
(CONSULT-II)
ABS ABS actuator and electric unit (control unit) ABS VDC/TCS/ABS
ADP Driver seat control unit AUTO DRIVE POS. –
AFS AFS control unit ADAPTIVE LIGHT –
BCM BCM BCM BCM/SEC
DISPDisplay unit
– DISPLAY
Display control unit
DLC Data link connector – –
ECM ECM ENGINE ECM
I-KEY Intelligent Key unit INTELLIGENT KEY I-KEY
IPDM-E IPDM E/R IPDM E/R IPDM E/R
M&A Unified meter and A/C amp. METER A/C AMP METER/M&A
STRG Steering angle sensor – STRG
TCM TCMA/T
TCM
TRANSMISSION
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![NISSAN TEANA 2003 Service Manual LAN-42
[CAN]
PRECAUTIONS
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BKS002DJ
The Supplemental Restraint System such as NISSAN TEANA 2003 Service Manual LAN-42
[CAN]
PRECAUTIONS
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BKS002DJ
The Supplemental Restraint System such as](/manual-img/5/57392/w960_57392-2645.png)
LAN-42
[CAN]
PRECAUTIONS
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BKS002DJ
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions When Using CONSULT-IIBKS0040J
Use CONSULT-II CONVERTER when connecting CONSULT-II to data link connector.
CAUTION:
CAN communication does not function properly if CONSULT-II is used without connecting CONSULT-II
CONVERTER.
Precautions for Trouble DiagnosisBKS0040K
CAUTION:
Never apply 7.0 V or more to the measurement terminal.
Use a tester with open terminal voltage of 7.0 V or less.
Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when
checking the harness.
Precautions for Harness RepairBKS0040L
Solder the repaired area and wrap tape around the soldered
area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
Bypass connection is never allowed at the repaired area.
NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of
twisted line are lost.
SKIB8766E
SKIB8767E
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LAN-43
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Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communi-
cation line.
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![NISSAN TEANA 2003 Service Manual LAN-44
[CAN]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSISPFP:00004
CAN Diagnostic Support MonitorBKS002DN
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-II)
ECM
NOTE NISSAN TEANA 2003 Service Manual LAN-44
[CAN]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSISPFP:00004
CAN Diagnostic Support MonitorBKS002DN
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-II)
ECM
NOTE](/manual-img/5/57392/w960_57392-2647.png)
LAN-44
[CAN]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSISPFP:00004
CAN Diagnostic Support MonitorBKS002DN
Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.
MONITOR ITEM LIST (CONSULT-II)
ECM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
Driver seat control unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
AFS 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.SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
ENGINEINITIAL DIAG Status of CAN controller
OKNG
TRANSMIT DIAG Signal transmission status
UNKWN TCM Signal receiving status from the TCM
VDC/TCS/ABSModels with VDC: Signal receiving status from the ABS actuator
and electric unit (control unit)
Models with ABS: Not used even though indicated
METER/M&A Signal receiving status from the unified meter and A/C amp. OK UNKWN
ICC Not used even though indicated
BCM/SEC Signal receiving status from the BCM
OK UNKWN
IPDM E/R Signal receiving from the IPDM E/R
AWD/4WD/e4WD
Not used even though indicated
EPS
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
AUTO DRIVE
POS.INITIAL DIAG Status of CAN controller
OKNG
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-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
ADAPTIVE
LIGHTTRANSMIT DIAG Not used even though indicated
ECM Signal receiving status from the ECM
OKOK
or
1 – 39
*UNKWN 0 METER/M&ASignal receiving status from the unified
meter and A/C amp.
TCM Signal receiving status from the TCM
STRGSignal receiving status from the steering
angle sensor
EPS Not used even though indicated
IPDM E/R Signal receiving status from the IPDM E/R OKOK
or
1 – 39
*UNKWN 0