NISSAN LATIO 2011 Service Repair Manual

BRC-72
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
2. Select “YAW RATE SEN”, “SIDE G-SENSOR” in “Data Monitor” and check Yaw rate/side/decel G sensor
signal.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-89, "Removal and Installa-
tion".
NO >> Replace Yaw rate/side/decel G sensor. Refer to BRC-92, "
Removal and Installation".
Solenoid and VDC Change-Over Valve System InspectionINFOID:0000000005928489
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check the terminals for deformati on, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.CHECKING SOLENOID POWER AND GROUND
Vehicle condition Yaw rate sensor (Data monitor) Side G sensor (Data monitor)
Stopped Approx. 0 d/s
Approx. 0 m/s
2
Turning right Negative valueNegative value
Turning left Positive valuePositive value
Self-diagnosis results
FR LH IN ABS SOL
FR LH OUT ABS SOL RR RH IN ABS SOL
RR RH OUT ABS SOL FR RH IN ABS SOL
FR RH OUT ABS SOL RR LH IN ABS SOL
RR LH OUT ABS SOL USV LINE [FL-RR]
USV LINE [FR-RL]
HSV LINE [FL-RR]
HSV LINE [FR-RL] MAIN RELAY
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-73
< SERVICE INFORMATION > [VDC/TCS/ABS]
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1. Check voltage between ABS actuator and electric unit (control unit) harness connector E33 and body ground.
2. Check resistance between ABS actuator and electric unit (con- trol unit) harness connector E33 and body ground.
OK or NG
OK >> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-89, "
Removal and Installation".
NG >> Repair the circuit.
Actuator Motor, Motor Relay, and Circuit InspectionINFOID:0000000005928490
INSPECTION PROCEDURE
1.CHECKING SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
Disconnect the ABS actuator and electr ic unit (control unit) connector.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.CHECKING ABS MOTOR AND MOTOR RELAY POWER SYSTEM
1. Check voltage between ABS actuator and electric unit (control unit) harness connector E33 and ground. ABS actuator and electric
unit (control unit) harness connector E33 Body
ground Measured
value
(Approx.)
3 — 12V
WFIA0499E
ABS actuator and electric
unit (control unit) harness connector E33 Body
ground Measured
value
(Approx.)
4—0 Ω
WFIA0500E
Self-diagnosis results
PUMP MOTOR
ABS actuator and electric
unit (control unit) harness connector E33 Body
ground Measured
value
(Approx.)
2 — 12V
WFIA0501E
Revision: May 2010 2011 Versa

BRC-74
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
2. Check resistance between ABS actuator and electric unit (con-
trol unit) connector E33 and ground.
OK or NG
OK >> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-89, "
Removal and Installation".
NG >> Repair the circuit.
Stop Lamp Switch System InspectionINFOID:0000000005928491
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and electric unit (control unit) and stop lamp switch connectors.
2. Check the terminals for deformati on, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.CHECK STOP LAMP SWITCH CIRCUIT
1. Connect stop lamp switch connector.
2. Check voltage between ABS actuator and electric unit (control unit) connector E33 terminal 20 and ground.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-89, "Removal and Installa-
tion".
NO >> GO TO 4
4.CHECK STOP LAMP SWITCH CIRCUIT FOR OPEN ABS actuator and electric
unit (control unit) harness connector E33 Body
ground Measured
value
(Approx.)
1—0 Ω
WFIA0502E
Self-diagnosis results
STOP LAMP SW
ABS actuator and elec-tric unit (control unit) Ground Condition Vol tag e
(Approx.)
Connector Terminal
E33 20 — Brake pedal depressed Battery voltage
Brake pedal released 0V
ALFIA0016ZZ
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-75
< SERVICE INFORMATION > [VDC/TCS/ABS]
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1. Disconnect stop lamp switch connector.
2. Check continuity between ABS actuator and electric unit (control unit) connector E33 (A) terminal 20 and stop lamp switch con-
nector E13 (B) terminal 2 (without M/T), or E13 (C) terminal 2
(with M/T).
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace as necessary.
5.CHECK STOP LAMP SWITCH CIRCUIT FOR SHORT
Check continuity between ABS act uator and electric unit (control
unit) connector E33 terminal 20 and ground.
Is the inspection result normal?
YES >> Replace stop lamp switch.
NO >> Repair harness or connectors.
ABS/TCS/VDC Control Unit Powe r and Ground Systems InspectionINFOID:0000000005928492
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and elec tric unit (control unit) connector.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.ABS/TCS/VDC CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION
Measure the voltage and continuity between the ABS act uator and electric unit (control unit) connector E33
and ground.
ABS actuator and electric
unit (control unit) stop lamp switch
Continuity
Connector Terminal Connector Terminal
E33 (A) 20 E13 (B) (without M/T)
2Yes
E13 (C) (with M/T)
AWFIA0607ZZ
ABS actuator and electric unit (control unit)
Ground Continuity
Connector Terminal
E33 20 — No
AWFIA0445ZZ
Self-diagnosis resultsBATTERY VOLTAGE
Signal name ABS actuator and electric unit
(control unit) connector E33 Ground Measured value
Revision: May 2010
2011 Versa

BRC-76
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
OK or NG
OK >> Check the battery for loose terminals, low voltage, etc. Repair as necessary.
NG >> Repair the circuit.
Brake Fluid Level Switch System InspectionINFOID:0000000005928493
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
1. Check the brake reservoir tank fluid level. If the level is low, add brake fluid.
2. Erase the self-diagnosis results and check the self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and electric unit (cont rol unit) and brake fluid level switch connectors.
2. Check the terminals for deformati on, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF.
2. Check continuity between brake fluid level switch terminals 1 and 2.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace brake fluid level switch.
4.CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1. Disconnect combination meter connector.
2. Check continuity between combination meter connector M24 (A) terminal 25 and brake fluid level switch connector E40 (B) termi-
nal 1.
3. Check continuity between combination meter connector M24 (A) terminal 25 and ground.
Is the inspection result normal?
Power supply 2
—Battery voltage (Approx. 12V)
3
Ground 1
Continuity should exist.
4
Self-diagnosis results
BR FLUID LEVEL LOW
Brake fluid level switch terminals ConditionContinuity
1— 2 Brake fluid reservoir full No
Brake fluid reservoir empty Yes
AWFIA0621ZZ
25 - 1 : Continuity should exist.
25 - Ground : Continuity should not exist.
AWFIA0622ZZ
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-77
< SERVICE INFORMATION > [VDC/TCS/ABS]
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YES >> GO TO 5
NO >> Repair or replace malfunctioning components.
5.CHECK BRAKE FLUID LEVE L SWITCH GROUND CIRCUIT
Check continuity between brake fluid level switch connector E40 (B)
terminal 2 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> • Repair or replace malfunctioning components. • Perform the self-diagnosis, and make sure that the
result shows ″NO DTC IS DETECTED ″.
Pressure Sensor System InspectionINFOID:0000000005928494
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and elec tric unit (control unit) connector and stop lamp switch connector.
3. Check terminals for deformation, disconnection, looseness and damage. If any malfunction is found, repair or replace terminals.
4. Reconnect connectors securely.
5. Start engine.
6. Pump brake pedal carefully several times, and perform self-diagnosis.
Is the inspection result normal?
YES >> GO TO 3
NO >> Poor connection of connector terminal. Repair or replace connector.
3.CHECK STOP LAMP SWITCH 2 - Ground : Continuity should exist.
AWFIA0623ZZ
Self-diagnosis results
PRESS SEN CIRCUIT
Revision: May 2010 2011 Versa

BRC-78
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch connector.
3. Check continuity between stop lamp switch (A) (without M/T) or
(B) (with M/T) terminals 1 and 2.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace stop lamp switch.
4.CHECK STOP LAMP SWITCH CIRCUIT
1. Disconnect ABS actuator and elec tric unit (control unit) connec-
tor.
2. Connect stop lamp switch connector.
3. Check voltage between ABS actuator and electric unit (control
unit) connector E33 terminal 20 and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace malfunctioning components.
5.CHECK DATA MONITOR
On “DATA MONITOR”, select “PRESS SENS OR” and check the brake fluid pressure.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-89, "Removal and Installa-
tion".
NO >> Inspection End.
Transmission Range Switch System InspectionINFOID:0000000005928495
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Stop lamp switch terminals ConditionContinuity
1 − 2 Brake pedal depressed
Yes
Brake pedal released No
AWFIA0609ZZ
ABS actuator and elec-
tric unit (control unit) Ground Condition Vol tag e
(Approx.)
Connector Terminal
E33 20 — Brake pedal depressed Battery voltage
Brake pedal released 0V
ALFIA0016ZZ
Condition PRESS SENSOR
(DATA MONITOR)
With ignition switch turned ON and brake pedal released. Approx. 0 bar
With ignition switch turned ON and brake pedal depressed. − 40 to 300 bar
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-79
< SERVICE INFORMATION > [VDC/TCS/ABS]
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Check the self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and el ectric unit (control unit) and brake fluid level switch connectors.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary.
3.CHECK TRANSMISSION RANGE SWITCH
Perform transmission range switch inspection. Refer to AT-94, "
Component Inspection" (with A/T) or CVT-65,
"Component Inspection" (with CVT).
Is the inspection result normal?
YES >> Replace ABS actuator and electr ic unit (control unit). Refer to BRC-89, "Removal and Installa-
tion".
NO >> Repair or replace malfunctioning components.
CAN Communication System InspectionINFOID:0000000005928496
INSPECTION PROCEDURE
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> Inspection End.
2.CHECK CONNECTOR
1. Disconnect the ABS actuator and electric unit (control unit) connector, and check the terminals for defor- mation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminals.
2. Reconnect connector to perform self-diagnosis. Refer to BRC-60, "
CONSULT-III Function (ABS)".
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Refer to LAN-17, "Trouble Diagnosis Flow Chart".
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component InspectionINFOID:0000000005928497
VDC OFF SWITCH
Self-diagnosis results
PNP POS SIG
Self-diagnosis results
ST ANG SEN COM CIR CAN COMM CIRCUIT
Revision: May 2010 2011 Versa

BRC-80
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
Check the continuity between terminals 1 and 2.
PARKING BRAKE SWITCH
1.CHECK PARKING BRAKE SWITCH
1. Turn ignition switch OFF.
2. Disconnect parking brake switch connector.
3. Check continuity between parking brake switch terminal 1 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace parking brake switch. 1 -2 : Continuity should
exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
AWFIA0446ZZ
Component Terminal ConditionContinuity
Parking brake switch 1 Parking brake applied
Yes
Parking brake released No
AWNIA0018ZZ
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSES FOR SYMPTOMSBRC-81
< SERVICE INFORMATION > [VDC/TCS/ABS]
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TROUBLE DIAGNOSES FOR SYMPTOMS
ABS Works FrequentlyINFOID:0000000005928498
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:0000000005928499
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: May 2010 2011 Versa