2011 NISSAN LATIO warning light

BRC-42
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
System ComponentINFOID:0000000005928467
ABS FunctionINFOID:0000000005928468
• The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding obsta-
cles.
• If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
• The electrical system can be diagnosed using CONSULT-III.
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
EBD FunctionINFOID:0000000005928469
• Electronic Brake Distribution is a function that detec ts subtle slippages between the front and rear wheels
during braking, and it improves handling stability by elec tronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.
• If the electrical system malfunctions, the Fail-Saf e function is activated, the EBD and ABS become inopera-
tive, and the ABS warning lamp and BRAKE warning lamp are turned on.
• The electrical system can be diagnosed using CONSULT-III.
• During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is normal.
• Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel, or snow-covered (fresh, deep snow) roads.
AWFIA0604GB
Revision: May 2010 2011 Versa

SYSTEM DESCRIPTIONBRC-43
< SERVICE INFORMATION > [VDC/TCS/ABS]
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TCS FunctionINFOID:0000000005928470
• Spinning of the drive wheels is detected by the ABS/TCS/VDC control unit using inputs from the wheel speed sensors. If wheel spin occurs, the drive wheel right and left brake fluid pressure control and engine
fuel cut are conducted while the throttle value is restricted to reduce the engine torque and decrease the
amount of wheel spin. In addition, the throttle openi ng is controlled to achieve the optimum engine torque.
• Depending on road condition, the vehicle may have a sluggi sh feel. This is normal, because optimum trac-
tion has the highest priority during TCS operation.
• TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden transmis- sion shifts or when the vehicle is driven on a road with a varying surface friction coefficient.
• The SLIP indicator lamp flashes to inform the driver of TCS operation.
VDC FunctionINFOID:0000000005928471
• In addition to the ABS/TCS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor, and the vehicle's driving status (amount of under steering/over steering) is
determined using inputs from the yaw rate/side/decel G sensor, wheel speed sensors, etc. and this informa-
tion is used to improve vehicle stability by controlling the braking and engine torque application to the
wheels.
• The SLIP indicator lamp flashes to inform the driver of VDC operation.
• During VDC operation, the vehicle body and brake pedal may vibrate lightly and a mechanical noise may be
heard. This is normal.
• The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while the
engine is running or steep slope. In this case, restart the engine on a normal road and if the ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off, there is no problem.
Wheel SensorsINFOID:0000000005928472
The front sensor units consist of a gear-shaped sensor rotor and a
sensor element. The element contains a magnet around which a coil
is wound. The front wheel sensors are installed on the front of the
wheel knuckles. As the wheel rotates, the sensor generates a
square-wave signal. The frequency increases as the wheel speed
increases.
The rear sensor units consist of wheel hubs with a series of internal
magnets and a sensor element. The rear wheel sensors are installed
on the inner side of the wheel knuckles. As the wheel rotates, the
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.
Fail-Safe FunctionINFOID:0000000005928473
ABS/EBD SYSTEM
In case of an electrical malfunction with the ABS, the ABS warning lamp, VDC OFF indicator lamp and SLIP
indicator lamp will turn on. In case of an electrical malfunction with the EBD system, the BRAKE warning lamp,
ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp will turn on.
LBR333
WFIA0033E
Revision: May 2010 2011 Versa

PRECAUTIONSCO-3
< PRECAUTION > [HR16DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005930769
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 SRS and SB section of this Service Man-
ual.
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 SRS section.
• 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 Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric 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.
Precaution for Liquid GasketINFOID:0000000005930771
REMOVAL OF LIQUID GASKET SEALING
• After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap Tool to insert it (1), and then slide it by tapping on the side (2)
as shown.
• In areas where Tool is difficult to use, use plastic hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
Tool number : KV10111100 (J-37228)
WBIA0566E
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DI-1
ELECTRICAL
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SECTION DI
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CONTENTS
DRIVER INFORMATION SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTION ................................................ .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
COMBINATION METERS ...................................4
Component Parts and Harness Connector Loca-
tion ...................................................................... ......
4
System Description ...................................................4
Arrangement of Combination Meter ..........................6
Internal Circuit ...........................................................7
Wiring Diagram - METER - .......................................8
Combination Meter Harness Connector Terminal
Layout .....................................................................
10
Terminal and Reference Value for Combination
Meter .......................................................................
10
Self-Diagnosis Mode of Combination Meter ........ ....11
CONSULT-III Function (METER/M&A) ............... ....13
Trouble Diagnosis ...................................................14
Symptom Chart .......................................................15
Power Supply and Ground Circuit Inspection .........15
Vehicle Speed Signal Inspection .............................16
Engine Speed Signal Inspection .............................17
Fuel Level Sensor Signal Inspection .......................17
Fuel Gauge Fluctuates, Indicates Wrong Value, or
Varies ......................................................................
19
Fuel Gauge Does Not Move to Full-position ...........19
DTC [U1000] CAN Communication Circuit ......... ....19
Electrical Component Inspection .............................20
Removal and Installation .........................................20
WARNING LAMPS ......................................... ....21
Schematic ........................................................... ....21
Wiring Diagram - WARN - ................................... ....22
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) .......................................................... ....
30
Oil Pressure Warning Lamp Does Not Turn Off
(Oil Pressure Is Normal) ...................................... ....
32
Component Inspection .............................................32
A/T INDICATOR ................................................34
System Description ..................................................34
Wiring Diagram - AT/IND - .......................................35
A/T Indicator Does Not Illuminate ............................36
CVT INDICATOR ...............................................38
System Description ..................................................38
Schematic ................................................................38
Wiring Diagram - CVTIND - .....................................39
CVT Indicator Does Not Illuminate ..........................41
WARNING CHIME .............................................43
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
43
System Description ..................................................43
Wiring Diagram - CHIME - .......................................46
Terminal and Reference Value for BCM ..................47
CONSULT-III Function (B CM) .................................47
Trouble Diagnosis ................................................ ....48
Combination Meter Buzzer Circuit Inspection .........49
Front Door Switch LH Signal Inspection .............. ....50
Key Switch Signal Inspection (Without Intelligent
Key) ..................................................................... ....
51
Key Switch and Ignition Knob Switch Signal In-
spection (With Intelligent Key, When Mechanical
Key Is Used) ........................................................ ....
52
Lighting Switch Signal Inspection ............................54
Parking Brake Switch Signal Inspection ..................54
Electrical Component Inspection .............................55
Revision: May 2010 2011 Versa

WARNING CHIMEDI-43
< SERVICE INFORMATION >
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WARNING CHIME
Component Parts and Har ness Connector LocationINFOID:0000000005929191
System DescriptionINFOID:0000000005929192
• Buzzer for warning chime system is installed in the combination meter.
• The buzzer sounds when combination meter receives buzzer output signal with CAN communication line.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
• through 40A fusible link (letter g, located in the fuse and fusible link box)
• to BCM terminal 70,
1. Combination meter M24 2. BCM M18, M19, M20 (view with
glove box removed) 3. Intelligent Key unit M52 (with Intelli-
gent Key)
4. Key switch and key lock solenoid M27 (without Intelligent Key) 5. Key switch and ignition knob switch
M73 (with Intelligent Key) 6. Combination switch (lighting switch)
M28
7. Front door switch LH B8 8. Parking brake switch M17
AWMIA0117ZZ
Revision: May 2010 2011 Versa

DI-44
< SERVICE INFORMATION >
WARNING CHIME
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in the fuse block (J/B)]
• to combination meter terminal 27.
With ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38,
• through 10A fuse [No. 3, located in the fuse block (J/B)]
• to combination meter terminal 28.
Ground is supplied
• to BCM terminal 67 and
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the key switch, and the ignition switch in the OFF or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with CAN communication line.
• When combination meter receives key warning signal, it sounds warning chime.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the key switch, and the igniti on switch in the LOCK or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with
CAN communication line.
• When combination meter receives key warning signal, it sounds warning chime.
When Intelligent Key Is Carried With The Driver
Refer to BL-88, "System Description".
LIGHT WARNING CHIME
The warning chime sounds, when driver's door is opened (door switch ON) with lighting switch ON and the
ignition switch is in any position other than ON or START.
NOTE:
BCM detected lighting switch in the 1st or 2nd position, refer to LT-64, "
Combination Switch Reading Func-
tion".
• BCM detects headlamps are illuminated, and sends light warning signal to combination meter with CAN
communication lines.
WKIA5463E
WKIA5464E
Revision: May 2010 2011 Versa

WARNING CHIMEDI-45
< SERVICE INFORMATION >
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• When the combination meter receives light warning signal, it sounds warning chime.
PARKING BRAKE WARNING CHIME
The parking brake warning chime sounds when the parking brake is applied and vehicle speed reaches
approximately 2 km/h (1 MPH).
• The combination meter receives a parking brake applied signal from the parking brake switch.
• When the combination meter receives a vehicle speed si gnal from the ABS actuator and electric unit (control
unit) (with ABS), vehicle speed sensor (without ABS or CVT) or the TCM (with CVT, without ABS), it sounds
the buzzer.
WKIA5465E
LKIA0906E
Revision: May 2010 2011 Versa

DI-48
< SERVICE INFORMATION >
WARNING CHIME
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
SELF-DIAG RESULTS
Display Item List
NOTE:
If “CAN communication [U1000]” is indicated, after printing the monitor item, go to “LAN system”. Refer to
LAN-17, "
Trouble Diagnosis Flow Chart".
Trouble DiagnosisINFOID:0000000005929196
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-43, "
System Description".
3. Perform the preliminary inspection. Refer to "PRELIMINARY INSPECTION".
4. According to symptom chart, repair or replac e the cause of the malfunction. Refer to "SYMPTOM
CHART".
5. Does warning chime system operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6. Inspection End.
PRELIMINARY INSPECTION
BCM diagnostic test item Diagnostic mode
Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.CONFIGURATION Performs BCM configuration read/write functions.
Monitored item ALL SIGNALS SELECTION
FROM MENU Contents
IGN ON SW XX Indicates [ON/OFF] condition of ignition switch.
KEY ON SW XX Indicates [ON/OFF] condition of key switch.
DOOR SW-DR XX Indicates [ON/OFF] condition of front door switch LH.
LIGHT SW 1ST XX Indicates [ON/OFF] condition of lighting switch.
BUCKLE SW XX Indicates [ON/OFF] condition of seat belt buckle switch LH.
Test item Malfunction is detected when···
IGN KEY WARN ALM This test is able to check key warning chime operation.
LIGHT WARN ALM This test is able to check light warning chime operation.
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation.
Display item [Code] Malfunction is detected when...
CAN communication [U1000] Malfunction is detected in CAN communication.
Revision: May 2010 2011 Versa