2011 NISSAN LATIO power steering

BRC-62
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
MAIN RELAY
[ C 111 4 ]During actuator relay OFF, when the actuator relay turns ON, or
when the control line for the relay is shorted to ground.
BRC-72, "Solenoid and
VDC Change-Over Valve
System Inspection"During actuator relay ON, when the actuator relay turns ON, or
when the control line for the relay is open.
ABS SENSOR
[ABNORMAL SIGNAL]
[ C 111 5 ] When wheel sensor input signal is malfunctioning. BRC-67, "
Wheel Sensor
System Inspection"
(NOTE 1)
STOP LAMP SW
[ C 111 6 ] Stop lamp switch or circuit malfunction. BRC-74, "
Stop Lamp
Switch System Inspec-
tion"
FR LH IN ABS SOL
[C1120]
Circuit of front LH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
BRC-72, "
Solenoid and
VDC Change-Over Valve
System Inspection"
FR LH OUT ABS SOL
[C1121]Circuit of front LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122] Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123] Circuit of front RH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124] Circuit of rear LH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126] Circuit of rear RH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127] Circuit of rear RH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
ENGINE SIGNAL 1
[C1130] ECM judges th
e communication between ABS/TCS/VDC control
unit and ECM is abnormal.
BRC-68, "
Engine System
Inspection"
ENGINE SIGNAL 2
[C1131]ECM judges th
e communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 3
[C1132] ECM judges th
e communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 4
[C1133] ECM judges th
e communication between ABS/TCS/VDC control
unit and ECM is abnormal.
ENGINE SIGNAL 6
[C1136] ECM judges th
e communication between ABS/TCS/VDC control
unit and ECM is abnormal.
PRESS SEN CIRCUIT
[C1142] Pressure sensor signal line is open or shorted, or pressure sensor
is malfunctioning. BRC-77, "
Pressure Sen-
sor System Inspection"
ST ANGLE SEN CIRCUIT
[C1143]Neutral position of steering angle sensor is dislocated, or steering
angle sensor is malfunctioning.
BRC-69, "Steering Angle
Sensor System Inspec-
tion"ST ANGLE SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.
YAW RATE SENSOR
[C1145] Yaw rate sensor has generated an error, or yaw rate sensor signal
line is open or shorted.
BRC-70, "
Yaw Rate/
Side/Decel G Sensor
System Inspection"SIDE G-SEN CIRCUIT
[C1146]Lateral G-sensor is malfunctioning, or signal line of lateral G-sen-
sor is open or shorted.
Self-diagnostic item Malfunction detecting condition Check system
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSISBRC-63
< SERVICE INFORMATION > [VDC/TCS/ABS]
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Note 1. If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power
supply voltage in addition to wheel sensor circuit check.
Note 2. If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for
CAN communication line first.
DATA MONITOR
Display Item List
USV LINE [FL-RR]
[C1147] Front side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
BRC-72, "
Solenoid and
VDC Change-Over Valve
System Inspection"
USV LINE [FR-RL]
[C1148]Rear side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
HSV LINE [FL-RR]
[C1149] Front side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
HSV LINE [FR-RL]
[C1150] Rear side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
EMERGENCY BRAKE
[C1153] When ABS actuator and el
ectric unit (control unit) is malfunction-
ing. (Pressure increase is too much or too little) BRC-68, "
ABS/TCS/VDC
Control Unit Inspection"
PNP POS SIG
[C1154]Transmission range switch signal or communication line between
the ABS actuator and electric unit (control unit) and TCM is open
or shorted. BRC-78, "Transmission
Range Switch System In-
spection"
BR FLUID LEVEL LOW
[C1155]
Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted. BRC-76, "Brake Fluid
Level Switch System In-
spection"
ST ANG SEN COM CIR
[C1156]
CAN communication line or steering angle sensor has generated
an error. BRC-79, "
CAN Commu-
nication System Inspec-
tion"
(Note 2)
VARIANT CODING
[C1170] In case where VARIANT CODING is different. BRC-68, "
ABS/TCS/VDC
Control Unit Inspection"
CAN COMM CIRCUIT
[U1000]• CAN communication line is open or shorted.
• ABS actuator and electric unit (control unit) internal malfunction
• Battery voltage for ECM is suddenly interrupted for approxi-
mately 0.5 seconds or more. BRC-79, "
CAN Commu-
nication System Inspec-
tion"
(Note 2)
Self-diagnostic item
Malfunction detecting condition Check system
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR LH SENSOR
(km/h, mph) ××× Wheel speed (km/h, mph) calculated by front LH
wheel sensor signal is displayed.
FR RH SENSOR
(km/h, mph) ××× Wheel speed (km/h, mph) calculated by front RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, mph) ×××
Wheel speed (km/h, mph) calculated by rear LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, mph) ××× Wheel speed (km/h, mph) calculated by rear RH
wheel sensor signal is displayed.
FR RH IN SOL
(On/Off) —
×× Front RH IN ABS solenoid (On/Off) status is dis-
played.
FR RH OUT SOL
(On/Off) —
×× Front RH OUT ABS solenoid (On/Off) status is
displayed.
FR LH IN SOL
(On/Off) —
×× Front LH IN ABS solenoid (On/Off) status is dis-
played.
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-69
< SERVICE INFORMATION > [VDC/TCS/ABS]
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Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CHECK WHEEL SENSORS
Check all wheel sensors. Refer to BRC-67, "
Wheel Sensor System Inspection".
OK or NG
OK >> Replace ABS actuator and electric unit (control unit). Refer to BRC-89, "Removal and Installa-
tion".
NG >> Repair or replace as necessary.
Steering Angle Sensor System InspectionINFOID:0000000005928487
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 3.
NO >> GO TO 2.
2.DATA MONITOR CHECK
Conduct “DATA MONITOR” of t he “STR ANGLE SIG” to check if the status is normal.
OK or NG
OK >> Inspection End.
NG >> GO TO 3.
3.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and el ectric unit (control unit) and steering angle sensor connectors.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace as necessary.
4.CHECKING STEERING ANGLE SENSOR POWER AND GROUND
EMERGENCY BRAKE
VARIANT CODING
Self-diagnosis results
Self-diagnosis results
ST ANGLE SEN CIRCUIT ST ANGLE SEN SIGNAL
Steering condition Data monitor
Straight-ahead -2.5 ° to +2.5 °
Turn wheel 90 ° to the right. Approx. +90°
Turn wheel 90 ° to the left. Approx. -90°
Revision: May 2010 2011 Versa

CL-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005928987
The Supplemental Restraint System such as “A IR 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 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 inopera tive, 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 incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005928988
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa

PRECAUTIONSCO-27
< SERVICE INFORMATION > [MR18DE]
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006405461
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 Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005930800
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa

CO-42
< SERVICE INFORMATION >[MR18DE]
RADIATOR
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa

THERMOSTATCO-49
< SERVICE INFORMATION > [MR18DE]
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*Power steering fluid, brake fluid, etc.
Fuel
LeakageLeakageLeakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa

CO-54
< SERVICE INFORMATION >[MR18DE]
WATER OUTLET AND WATER CONTROL VALVE
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa