2011 NISSAN LATIO ignition

LAN-18
< SERVICE INFORMATION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
• Indication of the combination meter is important to det
ect the root cause because it is the most obvious to
the customer, and it performs CAN communication with many units.
INSPECTION OF VEHICLE CONDITION
Check whether the symptom is reproduced or not.
NOTE:
Do not turn the ignition switch OFF or disconnect the bat tery cable while reproducing the error. The error may
temporarily correct itself, making it difficult to determine the root cause.
CHECK OF CAN SYSTEM TYPE (HOW TO U SE CAN SYSTEM TYPE SPECIFICATION CHART)
Determine CAN system type based on vehicle equipment.
NOTE:
• This chart is used if CONSULT-III does not automatically recognize CAN system type.
• There are two styles for CAN system type specific ation charts. Depending on the number of available sys-
tem types, either style A or style B may be used.
CAN System Type Specification Chart (Style A)
NOTE:
SKIB8717E
Revision: May 2010 2011 Versa

PRECAUTIONSLAN-23
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005928529
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 severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precautions for Trouble DiagnosisINFOID:0000000005928530
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 th e battery cable from the negative terminal when
checking the harness.
Precautions for Harness RepairINFOID:0000000005928531
• 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
Revision: May 2010 2011 Versa

LAN-26
< SERVICE INFORMATION >[CAN]
CAN COMMUNICATION SYSTEM
CAN COMMUNICATION SYSTEM
CAN System Specification ChartINFOID:0000000005928533
NOTE:
Refer to
LAN-17, "
Trouble Diagnosis Procedure" for how to use CAN system specification chart.
×: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
Body type Sedan Hatchback/Sedan Hatchback
Axle 2WD
Engine HR16DE MR18DE
Transmission M/TA/T M/T A/TCVT
Brake control — ABS — ABS — ABS VDC — ABS VDC
Intelligent Key system ××
CAN system type 12345678910111213
1. VDC OFF switch 2. ABS warning lamp
ABS: USA
: Canada 3. Ignition knob
A. With VDC B. With ABS C. With Intelligent Key system
ALMIA0478ZZ
Revision: May 2010 2011 Versa

CAN COMMUNICATION SYSTEMLAN-27
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CAN Communication Signal ChartINFOID:0000000005928534
Refer to LAN-16, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal
chart.
NOTE:
Refer to LAN-22, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signal name/Connecting unitECM
BCM
EPS
I-KEY M&A
STRG ABS
TCM
*1
TCM
*2
IPDM-E
A/C compressor request signal T R
Accelerator pedal position signal T
R
*3RR
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Closed throttle position signal T R R
Cooling fan motor operation signal T R
Engine coolant temperature signal TR
Engine speed signal TR
R
*3R
Engine status signal T R R R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal TR
Wide open throttle position signal T R R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal TR
TR
Day time running light request signal
*4TR
Door lock/unlock status signal TR
Door switch signal TR R R
Front wiper request signal T R
High beam request signal TR R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position lights request signal TR R
Rear window defogger switch signal T R
Sleep/wake up signal TRR
R
RT
Theft warning horn request signal T R
Tire pressure signal
*5TR
Trunk open/close status signal TR
Turn indicator signal TR
EPS operation signal TR
EPS warning lamp signal TR
Door lock/unlock/trunk open request signal RT
Hazard request signal RT
Ignition knob switch signal RT
Revision: May 2010 2011 Versa

LAN-34
< SERVICE INFORMATION >[CAN]
MAIN LINE BETWEEN DLC AND ABS CIRCUIT
MAIN LINE BETWEEN
DLC AND ABS CIRCUIT
Diagnosis ProcedureINFOID:0000000005928541
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
- Harness connector M69
- Harness connector E7
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M69 and E7.
2. Check the continuity between the data link connector and the harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the main line between the data link connector and the harness connector M69.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuat or and electric unit (control unit).
2. Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)
harness connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit).
NO >> Repair the main line between the harness connec tor E7 and the ABS actuator and electric unit
(control unit).
Data link connector Harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
M22 6
M69 32A
Existed
14 31AExisted
Harness connector ABS actuator and electric unit (control unit)
harness connector Continuity
Connector No. Terminal No.Connector No. Terminal No.
E7 32A
E33 26
Existed
31A 15Existed
Revision: May 2010 2011 Versa

MAIN LINE BETWEEN DLC AND TCM CIRCUITLAN-35
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MAIN LINE BETWEEN DLC AND TCM CIRCUIT
Diagnosis ProcedureINFOID:0000000005928542
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side
and harness side).
- Harness connector M69
- Harness connector E7
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M69 and E7.
2. Check the continuity between the data link connector and the harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the main line between the data link connector and the harness connector M69.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the connector of TCM.
2. Check the continuity between the har ness connector and the TCM harness connector.
Is the inspection result normal?
YES (Present error)>>Check CA N system type decision again.
YES (Past error)>>Error was detected in the ma in line between the data link connector and the TCM.
NO >> Repair the main line between the harness connector E7 and the TCM.
Data link connector Harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
M22 6
M69 32A
Existed
14 31AExisted
Harness connector TCM harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
E7 32A
E31 5
Existed
31A 6Existed
Revision: May 2010 2011 Versa

LAN-36
< SERVICE INFORMATION >[CAN]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928543
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors fo r damage, bend and loose connection (unit side and con-
nector side).
-ECM
- Harness connector E7
- Harness connector M69
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ECM.
2. Check the resistance between the ECM harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ECM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to the following.
• HR16DE: EC-123, "
Diagnosis Procedure"
• MR18DE: EC-634, "Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to the following.
• HR16DE: EC-23, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special
Repair Requirement"
• MR18DE: EC-579, "Procedure After Replacing ECM"
YES (Past error)>>Error was detected in the ECM branch line.
NO >> Repair the power supply and the ground circuit.
ECM harness connector
Resistance (Ω)
Connector No. Terminal No.
E16 8483Approx. 108 – 132
Revision: May 2010 2011 Versa

BCM BRANCH LINE CIRCUITLAN-37
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BCM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928544
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the BC M for damage, bend and loose connection (unit side and
connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of BCM.
2. Check the resistance between the BCM harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the BCM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to BCS-16, "
BCM Power Supply and Ground
Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the BCM. Refer to BCS-19, "Removal and Installation of BCM".
YES (Past error)>>Error was det ected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
BCM harness connector Resistance (Ω)
Connector No. Terminal No.
M18 39 40 Approx. 54 – 66
Revision: May 2010 2011 Versa