NISSAN LATIO 2011 Service Repair Manual

BRC-52
< SERVICE INFORMATION >[VDC/TCS/ABS]
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Wiring Diagram - VDC -
INFOID:0000000005928479
ABFWA0109GB
Revision: May 2010 2011 Versa

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ABFWA0110GB
Revision: May 2010 2011 Versa

BRC-54
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
ABFWA0111GB
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSISBRC-55
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ABFWA0162GB
Revision: May 2010 2011 Versa

BRC-56
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Basic Inspection
INFOID:0000000005928480
BRAKE FLUID LEVEL, FLUID LEAK, AND BRAKE PAD INSPECTION
1. Check fluid level in the brake fluid reservoir. If fluid level is low, add fluid.
2. Check the brake piping and around the ABS actuator and electric unit (control unit) for leaks. If there is leaking or seeping fluid, check the following items.
• If ABS actuator and electric unit (control unit) connection is loose, tighten the piping to the specifiedtorque and recheck for leaks.
ABFWA0163GB
Revision: May 2010 2011 Versa

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• If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw, replace the damaged part and recheck for leaks.
• When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembl\
ed and must be replaced
as an assembly.
3. Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cabl e and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP, SLIP INDICATOR LAMP AND VDC OFF INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp (when VDC OFF switch
is off), turn on for approximately 2 seconds when the igni tion switch is turned ON. If they do not, check the
VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-79, "
Component Inspection". Check
CAN communications. If there are no errors with VDC OFF switch and CAN communication system,
check combination meter. Refer to DI-32, "
Component Inspection".
2. Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp does not turn off, conduct self-diagnosis.
3. With the engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is turned on and off. If the indicator lamp status does not correspond to switch operation, check the VDC
OFF switch system. Refer to BRC-79, "
Component Inspection".
4. Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp turn off approximately 2 seconds after the engine is started. If ABS warning la mp, SLIP indicator lamp or VDC OFF indicator lamp
have not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the ABS actu-
ator and electric unit (control unit).
5. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-60, "
CONSULT-III
Function (ABS)".
Warning Lamp and Indicator TimingINFOID:0000000005928481
×: ON –: OFF
Control Unit Input/Out put Signal StandardINFOID:0000000005928482
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
Condition ABS
warning lamp VDC OFF
indicator lamp SLIP
indicator lamp Remarks
When the ignition switch is OFF ––– –
After the ignition switch is turned
ON
For approx. 2 seconds ×××
–
Ignition switch ON
Approx. 2 seconds later ––– –
When the VDC OFF switch turns
ON (VDC function OFF). –
×––
ABS/TCS/VDC malfunction ×××
–
×× –When the ABS/TCS/VDC control
unit is malfunctioning (power sup-
ply or ground malfunction).
When the VDC is malfunctioning. –×× –
Revision: May 2010 2011 Versa

BRC-58
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Monitor item
Display content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
FR LH SENSOR
FR RH SENSOR
RR LH SENSOR
RR RH SENSOR Wheel speedVehicle stopped
0 [km/h (mph)]
BRC-67, "
Wheel Sensor
System Inspection"Vehicle running (Note 1) Almost in accor-
dance with speed-
ometer display
(within
±10%)
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve opera-
tionActuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-III) or actuator relay is in-
active (in fail-safe mode).
On
BRC-72, "
Solenoid and
VDC Change-Over Valve
System Inspection"When actuator (solenoid) is not
active and actuator relay is ac-
tive (ignition switch ON). Off
STOP LAMP SW Brake pedal operation Brake pedal depressed On
BRC-74, "
Stop Lamp
Switch System Inspec-
tion"Brake pedal releasedOff
MOTOR RELAY Operation status of mo-
tor and motor relayIgnition switch ON or engine
running (ABS not operated)
Off
BRC-73, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"
Ignition switch ON or engine
running (ABS operated) On
ACTUATOR RLY Actuator relay opera-
tion statusVehicle stopped (Ignition
switch ON)
Off
Vehicle stopped (Engine run-
ning) On
ABS WARN LAMP ABS warning lamp ON
condition (Note 2)ABS warning lamp ON On
BRC-83, "
ABS Warning
Lamp Does Not Come On
When Ignition Switch Is
Turned On"ABS warning lamp OFF Off
OFF LAMP VDC OFF indicator
lamp status (Note 2) When VDC OFF indicator
lamp is ON
On
BRC-79, "
CAN Commu-
nication System Inspec-
tion"When VDC OFF indicator
lamp is OFF Off
OFF SW VDC OFF switch
ON/OFF status VDC OFF switch ON
(When VDC OFF indicator
lamp is ON)
On
BRC-79, "
Component In-
spection"VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF) Off
SLIP LAMP SLIP indicator lamp
status (Note 2)When SLIP indicator lamp is
ON
On
BRC-79, "
CAN Commu-
nication System Inspec-
tion"When SLIP indicator lamp is
OFF Off
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)Ignition switch ON
10 to 16VBRC-75, "
ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspec-
tion"
GEAR
Manual mode gear po-
sition determined by
TCMIgnition switch ON 1
2
3
4
5—
YAW RATE SEN Yaw rate detected by
yaw rate/side G sensorVehicle stopped
Approx. 0 d/sBRC-70, "
Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle turning –75 to 75 d/s
Revision: May 2010 2011 Versa

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ACCEL POS SIG Open/close condition
of throttle valve (linked
with accelerator pedal)Accelerator pedal not de-
pressed (ignition switch is ON)
0%
BRC-79, "
CAN Commu-
nication System Inspec-
tion"Depress accelerator pedal (ig-
nition switch is ON) 0 to 100%
SIDE G-SENSOR Transverse G detected
by side G-sensorVehicle stopped
Approx. 0 m/s
2
BRC-70, "Yaw Rate/Side/
Decel G Sensor System
Inspection"
Vehicle turning rightnegative value (m/
s2)
Vehicle turning left positive value (m/
s
2)
STR ANGLE SIG Steering angle detect-
ed by steering angle
sensorStraight-ahead
Approx. 0°BRC-69, "
Steering Angle
Sensor System Inspec-
tion"Steering wheel turned –720 to 720 °
PRESS SENSOR Brake fluid pressure
detected by pressure
sensorWith ignition switch ON and
brake pedal released
Approx. 0 bar
BRC-77, "
Pressure Sen-
sor System Inspection"With ignition switch ON and
brake pedal depressed –40 to 300 bar
EBD SIGNAL EBD operation EBD is active
On
—
EBD is inactive Off
ABS SIGNAL ABS operationABS is active
On
—
ABS is inactive Off
TCS SIGNAL TCS operationTCS is active
On
—
TCS is inactive Off
VDC SIGNAL VDC operationVDC is active
On
—
VDC is inactive Off
EBD FAIL SIG EBD fail-safe signal In EBD fail safe mode On
—
EBD is normal Off
ABS FAIL SIG ABS fail-safe signal In ABS fail safe mode
On
—
ABS is normal Off
TCS FAIL SIG TCS fail-safe signal In TCS fail safe mode
On
—
TCS is normal Off
VDC FAIL SIG VDC fail-safe signal In VDC fail safe mode On
—
VDC is normal Off
CRANKING SIG Crank operation Crank is active
On
—
Crank is inactive Off
FLUID LEV SW Status of brake fluid
level switchWhen brake fluid level switch
ON
On
BRC-76, "
Brake Fluid
Level Switch System In-
spection"When brake fluid level switch
OFF Off
PARK BRAKE SW Status of parking brake
switchParking brake switch is active On
BRC-79, "
Component In-
spection"Parking brake switch is inactive Off
Monitor item Display content
Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
Revision: May 2010 2011 Versa

BRC-60
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Note 1: Confirm tire pressure is normal.
Note 2: On and Off timing for warning lamp and indicator lamp.
CONSULT-III Function (ABS)INFOID:0000000005928483
CONSULT-III can display each diagnostic item us
ing the diagnostic test modes shown following.
SELF-DIAGNOSIS
Description
If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
Operation Procedure
1. Turn ignition switch OFF.
2. Connect CONSULT-III To the data link connector.
3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
5. After stopping the vehicle, with the engine running, t ouch “ABS”, “SELF-DIAG RESULTS” in order on the
CONSULT-III screen.
USV[FL-RR]
USV[FR-RL]
HSV[FL-RR]
HSV[FR-RL] VDC switch-over valve
statusWhen actuator (switch-over
valve) is active (“ACTIVE
TEST” with CONSULT-III) or
actuator relay is inactive (when
in fail-safe mode).
On
BRC-72, "
Solenoid and
VDC Change-Over Valve
System Inspection"
When actuator (switch-over
valve) is not active and actua-
tor relay is active (ignition
switch ON). Off
V/R OUTPUT Solenoid valve relay
activatedWhen solenoid valve relay is
active (ignition switch OFF)
On
When solenoid valve relay is
not active (in fail-safe mode) Off
M/R OUTPUT Actuator motor and mo-
tor relay activatedWhen actuator motor and mo-
tor relay are active (“ACTIVE
TEST” with CONSULT-III)
On
BRC-73, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"When actuator motor and mo-
tor relay are inactive Off
ENGINE RPM With engine running With engine stopped
0 rpm
BRC-68, "
Engine System
Inspection"Engine running Almost in accor-
dance with ta-
chometer display
Monitor item
Display content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
ABS diagnostic mo de Description
WORK SUPPORT Supports inspection and adjustment
s. Commands are transmitted to the ABS actuator and electric unit
(control unit) for setting the status suitable for required operation, input/output signals are received from
the ABS actuator and electric unit (control unit) and received data is displayed.
SELF DIAGNOSTIC RESULT Displays ABS ac tuator and electric unit (control unit) self-diagnosis results.
DATA MONITOR Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST Conducted by CONS ULT-III instead of a technician to determine whether each system is "OK" or "NG".
ECU IDENTIFICATION ABS actuator and electric unit (control unit) part number can be read.
Revision: May 2010 2011 Versa

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6. The self-diagnostic results are displayed. • When “NO DTC IS DETECTED” is displayed, check the ABS warning lamp, SLIP indicator lamp and
VDC OFF indicator lamp.
7. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive at approximately 30 km /h (19 MPH) for approximately 1 minute.
CAUTION:
• When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, the ABS warn ing lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “ABS”, “SELF-DIAG RESULTS”, “ERASE” in order on the CONSULT-III screen to erase the error memory.
If “ABS” is not indicated, go to GI-36, "
CONSULT-III Data Link Connector (DLC) Circuit".
CAUTION:
If the error memory is not erased, re -conduct the operation from step 5.
11. For the final inspection, drive at approximately 30 km/h (19 MPH) for approximately 1 minute and confirm
that the ABS warning lamp, SLIP indicator lamp, and VDC OFF indicator lamp are off.
Display Item List
Self-diagnostic item Malfunction detecting condition Check system
RR RH SENSOR 1
[C1101] Circuit of rear RH wheel sensor is open.
BRC-67, "
Wheel Sensor
System Inspection"
(Note 1)
RR LH SENSOR 1
[C1102]
Circuit of rear LH wheel sensor is open.
FR RH SENSOR 1
[C1103] Circuit of front RH wheel sensor is open.
FR LH SENSOR 1
[C1104] Circuit of front LH wheel sensor is open.
RR RH SENSOR 2
[C1105] Circuit of rear RH wheel sensor is shorted, or sensor power volt-
age is unusua
l. ABS actuator and electric unit (control unit) cannot
identify sensor pulses, because of large gap between wheel sen-
sor and sensor rotor.
RR LH SENSOR 2
[C1106] Circuit of rear LH wheel sensor is shorted, or sensor power volt-
age is unusua
l. ABS actuator and electric unit (control unit) cannot
identify sensor pulses, because of large gap between wheel sen-
sor and sensor rotor.
FR RH SENSOR 2
[C1107] Circuit of front RH wheel sensor is shorted, or sensor power volt-
age is unusua
l. ABS actuator and electric unit (control unit) cannot
identify sensor pulses, because of large gap between wheel sen-
sor and sensor rotor.
FR LH SENSOR 2
[C1108] Circuit of front LH wheel sensor is shorted, or sensor power volt-
age is unusua
l. ABS actuator and electric unit (control unit) cannot
identify sensor pulses, because of large gap between wheel sen-
sor and sensor rotor.
BATTERY VOLTAGE
[ABNORMAL]
[C1109] ABS actuator and electric unit (con
trol unit) power voltage is too
low. BRC-75, "
ABS/TCS/VDC
Control Unit
Power and
Ground Systems Inspec-
tion"
CONTROLLER FAILURE
[ C 111 0 ] Internal malfunction of ABS actuat
or and electric unit (control
unit). BRC-68, "ABS/TCS/VDC
Control Unit Inspection"
PUMP MOTOR
[ C 1111 ]During actuator motor operation with ON, when actuator motor
turns OFF or when control line fo
r actuator motor relay is open. BRC-73, "Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
Revision: May 2010
2011 Versa