2007 NISSAN LATIO ignition

TROUBLE DIAGNOSIS
LAN-13
[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: June 20062007 Versa
CAN Diagnostic Support MonitorUKS005Y7
CONSULT-II and CAN diagnostic support monitor (on-board diagnosis function) are used for detecting root
cause.
MONITOR ITEM (CONSULT-II)
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
SKIB8742E
Item PRSNT Description
Initial diagnosisOK Normal at present
NG Control unit error (Except for some control units)
Transmission diagnosisOK Normal at present
UNKWNUnable to transmit signals for 2 seconds or more.
Diagnosis not performed
Control unit name
(Reception diagnosis)OK Normal at present
UNKWNUnable to receive signals for 2 seconds or more.
Diagnosis not performed
No control unit for receiving signals. (No applicable optional parts)
Item PRSNT PAST Description
Transmission diagnosisOKOK Normal at present and in the past
1 – 39Normal at present, but unable to transmit signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to transmit signals for 2 seconds or more at present.
Control unit name
(Reception diagnosis)OKOK Normal at present and in the past
1 – 39Normal at present, but unable to receive signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to receive signals for 2 seconds or more at present
––Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)

LAN-18
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW
Revision: June 20062007 Versa
INSPECTION OF VEHICLE CONDITION

Check whether or not “U1000” or “U1001” is indicated on “SELF-DIAG RESULTS” by CONSULT-II.
NOTE:
Root cause cannot be detected using the procedure in this section if “U1000” or “U1001” is not indicated.

Check whether the symptom is reproduced or not.
NOTE:

Never turn the ignition switch OFF or disconnect the battery cable while the reproducing the error. The
error may temporarily correct itself, making it difficult to determine the root cause.

The procedures for present errors differ from the procedures for past errors. Refer to LAN-25,
"DETECT THE ROOT CAUSE" .

LAN-42
[CAN]
PRECAUTIONS
Revision: June 20062007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
UKS005VK
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WAR NIN G:

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-IIUKS005YD
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 DiagnosisUKS005YE
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 RepairUKS005YF

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).
SKIB8766E

LAN-44
[CAN]
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
TROUBLE DIAGNOSISPFP:00004
CAN Diagnostic Support MonitorUKS005WF
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.
BCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
EPS control unit
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
ENGINETRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0 VDC/TCS/ABSSignal receiving status from the ABS actu-
ator and electric unit (control unit)
METER/M&ASignal 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
OKOK
or
1 – 39
*UNKWN 0 EPSSignal receiving status from the EPS con-
trol unit
IPDM E/R Signal receiving status from the IPDM E/R
e4WD
Not used even though indicated
AWD/4WD
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
BCMINITIAL DIAG Status of CAN controller
OKNG
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 Signal receiving status from the Intelligent Key unit
TCM Not used even though indicated
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
EPSTRANSMIT DIAG Signal transmission status
OK UNKWN ECM Signal receiving status from the ECM
VDC/TCS/ABSSignal receiving status from the ABS actuator and electric unit
(control unit)
METER/M&A Signal receiving status from the combination meter

TROUBLE DIAGNOSIS
LAN-45
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: June 20062007 Versa
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.
Combination meter
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.
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. SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
INTELLIGENT
KEYTRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0 ECM Signal receiving status from the ECM
METER/M&ASignal receiving status from the combina-
tion meter
BCM/SEC Signal receiving status from the BCM
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
METERTRANSMIT DIAG Signal transmission status
OKOK
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/ABSSignal receiving status from the ABS actu-
ator and electric unit (control unit)
IPDM E/R Signal receiving status from the IPDM E/R
DISPLAY Not used even though indicated
I-KEYSignal receiving status from the Intelligent
Key unit
OKOK
or
1 – 39
*UNKWN 0
EPSSignal receiving status from the EPS con-
trol unit
AWD /4 WD
Not used even though indicated e4WD
ICC
LANE KEEP
TIRE-P
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
ABSINITIAL DIAG Status of CAN controller
OKNG
Caution
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM

LAN-46
[CAN]
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
TCM (Models with A/T)
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
TCM (Models with CVT)
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-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
A/TINITIAL DIAG Status of CAN controller
OKNG
TRANSMIT DIAG Signal transmission status
UNKWN
ECM Signal receiving status from the ECM
VDC/TCS/ABS Not used even though indicated
METER/M&A Signal receiving status from the combination meter OK UNKWN
ICC/e4WD Not used even though indicated
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
TRANSMISSIONTRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0 ECM Signal receiving status from the ECM
VDC/TCS/ABSSignal receiving status from the ABS actu-
ator and electric unit (control unit)
METER/M&ASignal receiving status from the combina-
tion meter
BCM/SEC
Not used even though indicated ICC
e4WD
AWD/4WD
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
IPDM E/RTRANSMIT DIAG Signal transmission status
OKOK
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: June 20062007 Versa
CAN Communication Signal ChartUKS005VQ
Refer to 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
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signals ECM BCM EPS
I-KEY
*1M&A
ABS*2IPDM-E
A/C compressor request signal
*3TR
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan motor operation signal TR
Engine coolant temperature signal T R
Engine speed signal T R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
A/C switch signal
*3RT
Blower fan motor switch signal R T
Buzzer output signalTR
TR
Day time running light request signal
*4TR
Door lock/unlock status signal T R
Door switch signal T R R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position lights request signal T R R
Rear window defogger switch signal T R
Theft warning horn request signal T R
Tire pressure signal
*5TR
Trunk open/close status signal T R
Turn indicator signal T R
EPS operation signal R T
EPS warning lamp signal T R
Door lock/unlock/trunk open request signal R T
Hazard request signal R T
Ignition knob switch signal R T
KEY warning lamp signal T R
LOCK warning lamp signal T R
Panic alarm request signal R T
Fuel level sensor signal R T

TROUBLE DIAGNOSIS
LAN-49
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: June 20062007 Versa
*1: Models with Intelligent Key system
*2: Models with ABS
*3: Models with air conditioner
*4: Models for Canada
*5: Models for USA
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
TYPE 5/TYPE 6
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive Sleep/wake up signalRT
TRRR
Vehicle speed signalRRR T
RRRT
ABS warning lamp signalRT
Brake warning lamp signalRT
Front wiper stop position signal R T
High beam status signal RT
Low beam status signal RT
Oil pressure switch signalRT
Rear window defogger control signal RT Signals ECM BCM EPS
I-KEY
*1M&A
ABS*2IPDM-E
Signals ECM BCM EPS M&A
ABS*1TCM IPDM-E
A/C compressor request signal
*2TR
Accelerator pedal position signal T R
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Closed throttle position signal T R
Cooling fan motor operation signal TR
Engine coolant temperature signal T R
Engine speed signal T R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Wide open throttle position signal T R
A/C switch signal
*2RT
Blower fan motor switch signal R T
Buzzer output signalTR
R
Day time running light request signal
*3TR
Door switch 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 T R