NISSAN LATIO 2010 Service Repair Manual

TROUBLE DIAGNOSES FOR SYMPTOMSBRC-81
< SERVICE INFORMATION > [VDC/TCS/ABS]
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TROUBLE DIAGNOSES FOR SYMPTOMS
ABS Works FrequentlyINFOID:0000000005612173
1.CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK >> GO TO 2.
NG >> Carry out self-diagnosis. Refer to BRC-60, "
CONSULT-III Function (ABS)".
2.CHECK WHEEL SENSORS
Check the following.
• Wheel sensor mounting for looseness
• Wheel sensors for physical damage
• Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK >> GO TO 3.
NG >> Repair as necessary.
3.CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FA X - 6 , "
On-Vehicle Inspection and Service" or RAX-6, "On-Vehi-
cle Inspection and Service".
OK or NG
OK >> GO TO 4.
NG >> Repair as necessary.
4.CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to BR-9, "
On Board Inspection".
Is brake fluid pressure distribution normal?
YES >> Inspection End.
NO >> Perform Basic Inspection. Refer to BRC-56, "
Basic Inspection".
Unexpected Pedal ActionINFOID:0000000005612174
1.CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK >> GO TO 2.
NG >> Carry out self-diagnosis. Refer to BRC-60, "
CONSULT-III Function (ABS)".
2.CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.
Is pedal stroke excessive?
YES >> Perform Basic Inspection. Refer to BRC-56, "Basic
Inspection".
NO >> GO TO 3.
SBR540A
Revision: January 20102010 Versa

BRC-82
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
3.CHECK CONNECTOR AND BRAKING PERFORMANCE
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check brake effectiveness.
NOTE:
Driving the vehicle with the ABS actuator and electr ic unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to BRC-60,
"CONSULT-III Function (ABS)".
OK or NG
OK >> GO TO 4.
NG >> Perform Basic Inspection. Refer to BRC-56, "
Basic Inspection".
4.CHECK WHEEL SENSORS
Check the following.
• Wheel sensor mounting for looseness
• Wheel sensors for physical damage
• Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK >> Check ABS actuator and electric unit (contro l unit) pin terminals for damage and the connection of
harness connector. Reconnect ABS actuator and el ectric unit (control unit) harness connector.
Then retest.
NG >> Repair as necessary.
Long Stopping DistanceINFOID:0000000005612175
1.CHECK BASE BRAKING SYSTEM PERFORMANCE
1. Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2. Drive vehicle and check to see if stopping distance is still long.
NOTE:
Driving the vehicle with the ABS actuator and electr ic unit (control unit) disconnected may induce DTCs in
electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to BRC-60,
"CONSULT-III Function (ABS)".
OK or NG
OK >> Go to BRC-81, "ABS Works Frequently".
NG >> Perform Basic Inspection. Refer to BRC-56, "
Basic Inspection".
NOTE:
Stopping distance may be longer than vehicles without ABS when road condition is slippery.
ABS Does Not WorkINFOID:0000000005612176
CAUTION:
The ABS does not operate when the vehicle speed is 10 km/h (6 MPH) or less.
1.CHECK WARNING LAMP ACTIVATION
Turn ignition switch ON and check for warning lamp activation.
• Warning lamp should activate for approximately 2 seconds after turning the ignition switch ON.
OK or NG
OK >> Carry out self-diagnosis. Refer to BRC-60, "CONSULT-III Function (ABS)".
NG >> Go to BRC-83, "
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On".
Pedal Vibration or ABS Operation NoiseINFOID:0000000005612177
NOTE:
During ABS activation, pedal vibration may be felt and a noise may be heard. This is normal and does not indi-
cate a malfunction.
Revision: January 20102010 Versa

TROUBLE DIAGNOSES FOR SYMPTOMSBRC-83
< SERVICE INFORMATION > [VDC/TCS/ABS]
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1.CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom occur only when engine is started?
YES >> Carry out self-diagnosis. Refer to BRC-60, "CONSULT-III Function (ABS)".
NO >> GO TO 2.
2.RECHECK SYMPTOM
Does the symptom occur only when electrical equi pment switches (such as headlamp) are turned on?
YES >> Check for radio, antenna or related wiring that is routed too close to the ABS actuator and electric
unit (control unit) and reroute as necessary.
NO >> Go to BRC-81, "
ABS Works Frequently".
ABS Warning Lamp Does Not Come On Wh en Ignition Switch Is Turned On
INFOID:0000000005612178
1.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) FUSES
Check 40A fusible link f and 30A fusible link k for ABS actuator and electric unit (control unit).
OK or NG
OK >> GO TO 2.
NG >> If fusible link is blown, be sure to eliminate cause of problem before replacing.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUITS
1. Disconnect ABS actuator and electric unit (control unit) connec- tor.
2. Check voltage between ABS actuator and electric unit (control
unit) connector E33 terminals 2, 3 and ground.
Does battery voltage exist?
YES >> GO TO 3.
NO >> Repair harness or connectors between fusible link and ABS actuator and electric unit (control unit).
3.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS act uator and electric unit (control
unit) connector E33 terminals 1, 4 and ground.
Does continuity exist?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-89, "
Removal and Installation".
NO >> Repair harness or connectors between ABS actuator
and electric unit (control unit) and ground.
ABS Warning Lamp Stay s On When Ignition Switch Is Turned OnINFOID:0000000005612179
1.CARRY OUT SELF-DIAGNOSIS
Carry out self-diagnosis. Refer to BRC-60, "
CONSULT-III Function (ABS)".
Are malfunctions detected in self-diagnosis?
AWFIA0610ZZ
AWFIA0611ZZ
Revision: January 20102010 Versa

BRC-84
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
YES >> Refer to BRC-60, "CONSULT-III Function (ABS)".
NO >> Refer to DI-21, "
Schematic".
Vehicle Jerks During TCS/VDC ActivationINFOID:0000000005612180
1.ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item , perform the ABS actuator and electric unit (con-
trol unit) self-diagnosis again.
NO >> GO TO 2.
2.ENGINE SPEED SIGNAL INSPECTION
Perform data monitor with CONSULT-III for the ABS actuator and electric unit (control unit).
Is the engine speed at idle 400 rpm or higher?
YES >> GO TO 4.
NO >> GO TO 3.
3.ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the ECM self-diagnosis again.
NO >> GO TO 4.
4.TCM SELF-DIAGNOSIS
Perform TCM self-diagnosis.
Are self-diagnosis result items displayed?
YES >> After checking and repairing the applicable item, perform the TCM self-diagnosis again.
NO >> GO TO 5.
5.CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (contro l unit) connector and the ECM connectors and check the
terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace the connector terminal.
6.CAN COMMUNICATION INSPECTION
Check the CAN communication system. Refer to BRC-79, "
CAN Communication System Inspection".
OK or NG
OK >> Inspection End.
NG >> Reconnect the connectors, and per form ABS actuator and electric unit (control unit) self-diagno-
sis.
Revision: January 20102010 Versa

ON-VEHICLE SERVICEBRC-85
< SERVICE INFORMATION > [VDC/TCS/ABS]
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ON-VEHICLE SERVICE
Adjustment of Steering Angle Sensor Neutral PositionINFOID:0000000005612181
After removing/installing or replacing ABS actuator and electric unit (control unit), steering angle sensor, steer-
ing and suspension components which affect wheel alignment or after adjusting wheel alignment, be sure to
adjust neutral position of steering angle sensor before running vehicle.
NOTE:
Adjustment of steering angle sensor neutral position requires CONSULT-III.
1. Stop vehicle with front wheels in straight-ahead position.
2. Connect CONSULT-III to data link connector on vehicle, and turn ignition switch ON (do not start engine).
3. Touch “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” on CONSULT-III screen in
this order.
4. Touch “START”. CAUTION:
Do not touch steering wheel whil e adjusting steering angle sensor.
5. After approximately 10 seconds, touch “END”. (After approximately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
7. Run vehicle with front wheels in straight-ahead position, then stop.
8. Select “DATA MONITOR”, “SELECTION FROM MENU”, and “STR ANGLE SIG” on CONSULT-III screen.
Then check that “STR ANGLE SIG” is within 0 ±2.5 deg. If value is more than specification, repeat steps 1
to 5.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch to OFF.
Revision: January 20102010 Versa

BRC-86
< SERVICE INFORMATION >[VDC/TCS/ABS]
WHEEL SENSORS
WHEEL SENSORS
Removal and InstallationINFOID:0000000005612257
NOTE:
The top portion of the figure (front side) shows the view from LH side of the vehicle. The RH side is the mirror image of the LH side.
FRONT WHEEL SENSOR
Removal
CAUTION:
• As much as possible, avoid rotating wheel sensor when removing it
. Pull wheel sensors out without
pulling on sensor harness.
• Take care to avoid damaging wheel sensor edges or rotor teeth. Remove wheel sensor first before
removing front or rear wheel hub. This is to avoid damage to wheel sensor wiring and loss of sensor
function.
1. Remove the front wheel and tire. Refer to WT-7, "
Adjustment".
2. Remove the front fender protector. Refer to EI-24, "
Removal and Installation".
3. Disconnect the front wheel sensor connector.
4. Remove the front wheel sensor.
Installation
Installation is in the reverse order of removal.
CAUTION:
• When installing, make sure there is no foreign material such as iron chips on and in the mounting
hole of the wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove
any foreign material and clean the mount.
A. Front B. Rear 1. Front wheel sensor connector (LH)
2. Front wheel sensor (LH) 3. Rear wheel sensor (LH)4. Rear wheel sensor connector (LH)
5. Rear wheel sensor connector (RH) 6. Rear wheel sensor (RH) 7. Side member
8. LH side 9. RH side Front
SFIA3090E
Revision: January 20102010 Versa

WHEEL SENSORSBRC-87
< SERVICE INFORMATION > [VDC/TCS/ABS]
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• When installing front wheel sensor, press rubber gr ommets of strut bracket and body all the way in
until they get locked, and be careful not to apply a twist to harness. Harness should not be twisted
after installation. (Install it with harness paint mark on body side grommet facing front of vehicle,
and the strut side grommet facing outside of vehicle.)
REAR WHEEL SENSOR
Removal
CAUTION:
• As much as possible, avoid rotating wheel sensor when removing it . Pull wheel sensors out without
pulling on sensor harness.
• Take care to avoid damaging wheel sensor edges or rotor teeth. Remove wheel sensor first before removing front or rear wheel hub. This is to avo id damage to wheel sensor wiring and loss of sensor
function.
1. Disconnect the rear wheel sensor connector.
2. Remove the rear wheel sensor.
Installation
Installation is in the reverse order of removal.
CAUTION:
• When installing, make sure there is no foreign mate rial such as iron chips on and in the mounting
hole of the wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove
any foreign material and clean the mount.
• When installing rear wheel sensor, press rubber grommets of suspension arm bracket and harness
of side member all the way in until they get locked , and be careful not to apply a twist to harness.
Harness should not be twisted after installati on. (Aim the paint mark upward of vehicle.)
Revision: January 20102010 Versa

BRC-88
< SERVICE INFORMATION >[VDC/TCS/ABS]
SENSOR ROTOR
SENSOR ROTOR
Removal and InstallationINFOID:0000000005612258
The front and rear sensor rotors are part of the hub and bearing assembly and cannot be removed separately.
To replace the front or rear sensor rotors, the hub and bearing assembly must be replaced. Refer to
FA X - 6 ,
"Removal and Installation" (front axle), RAX-6, "Removal and Installation" (rear axle).
Revision: January 20102010 Versa

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)BRC-89
< SERVICE INFORMATION > [VDC/TCS/ABS]
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ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Removal and InstallationINFOID:0000000005612259
CAUTION:
• Before servicing, disconnect battery negative terminal.
• To remove brake tube, use flare nut wrench to pr event flare nuts and brake tube from being dam-
aged. To install, use flare nut torque wrench, ti ghten flare nut to the specified torque. Refer to BR-11,
"Hydraulic Circuit".
• Do not apply excessive impact to ABS actuator and elect ric unit (control unit), such as dropping it.
• Do not remove and install actuator by holding harness.
• After work is completed, bleed the air from the brake hydraulic system. Refer to BR-9, "
Bleeding
Brake System".
REMOVAL
1. Disconnect the battery negative terminal.
2. Remove the cowl top. Refer to EI-22, "
Removal and Installation".
3. Disconnect ABS actuator and electric unit (control unit) connector.
4. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
5. Remove brake booster hose from engine. Refer to BR-23, "
Removal and Installation".
6. Remove ABS actuator and electric unit (control unit) bracket bolts.
7. Remove ABS actuator and electric unit (control unit).
1. To front right caliper 2. To rear left wheel cylinder 3. To rear right wheel cylinder
4. To front left caliper 5. From master cylinder primary side 6. From master cylinder secondary side
7. ABS actuator and electric unit (control unit) 8. Harness connector
Front
AWFIA0532GB
Revision: January 20102010 Versa

BRC-90
< SERVICE INFORMATION >[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
INSTALLATION
Installation is in the reverse order of removal.
• Bleed the brake system. Refer to
BR-9, "
Bleeding Brake System".
• Adjust steering angle sensor neutral position, if equipped. Refer to BRC-85, "
Adjustment of Steering Angle
Sensor Neutral Position".
CAUTION:
After installing harness connector in the ABS actuato r and electric unit (control unit), make sure the
connector is securely locked.
Revision: January 20102010 Versa