TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-29
< SERVICE INFORMATION > [ABS]
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OK or NG
OK >> Check the battery for loose terminals, low voltage, etc. Repair as necessary.
NG >> Repair the circuit.
CAN Communication System InspectionINFOID:0000000005928451
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuat or and electric unit (control unit) connector and check
the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is "CAN COMM CIRCUIT" displayed in self-diagnosis display items?
YES >> Print out the self-diagnostic results, and refer to LAN-17, "Trouble Diagnosis Flow Chart".
NO >> Connector terminal is l oose, damaged, open, or shorted.
Ground
1
—Continuity should exist.
4
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSES FOR SYMPTOMSBRC-31
< SERVICE INFORMATION > [ABS]
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2. Drive vehicle and check brake operation. NOTE:
• Stopping distance may be longer than vehicles without ABS when road condition is slippery.
• Driving the vehicle with the ABS actuator and elec tric unit (control unit) disconnected may induce DTCs
in electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-
7, "System Description".
OK or NG
OK >> GO TO 4.
NG >> Perform Basic Inspection. Refer to BRC-17, "
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
• Sensor rotor and mount for physical damage
OK or NG
OK >> Check ABS actuator and electric unit (control unit) connector terminals for deformation, discon-
nection, looseness or damage. Re connect ABS actuator and electric unit (control unit) harness
connector. Then retest.
NG >> Repair or replace as necessary.
Long Stopping DistanceINFOID:0000000005928454
1.CHECK BASE BRAKING SYSTEM PERFORMANCE
1. Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2. Drive vehicle and check brake operation. NOTE:
• Stopping distance may be longer than vehicles without ABS when road condition is slippery.
• Driving the vehicle with the ABS actuator and elec tric unit (control unit) disconnected may induce DTCs
in electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to LAN-
7, "System Description".
OK or NG
OK >> Go to BRC-30, "ABS Works Frequently".
NG >> Perform Basic Inspection. Refer to BRC-17, "
Basic Inspection".
ABS Does Not WorkINFOID:0000000005928455
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-19, "CONSULT-III Function (ABS)".
NG >> Go to BRC-17, "
Basic Inspection".
Pedal Vibration or ABS Operation NoiseINFOID:0000000005928456
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.
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-19, "CONSULT-III Function (ABS)".
Revision: May 2010 2011 Versa
PRECAUTIONSBRC-39
< SERVICE INFORMATION > [VDC/TCS/ABS]
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Brake SystemINFOID:0000000005928462
CAUTION:
• Refer to MA-14, "
Fluids and Lubricants" for recommended brake fluid.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• To clean or wash all parts of master cylin der and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosen e. They will ruin rubber parts of the hydraulic sys-
tem.
• Use flare nut wrench when removing and installing brake tube.
• If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
• Turn the ignition switch OFF and remove the connector of the
ABS actuator and electric unit (con trol unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surf aces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage.
Refer to BR-34, "
Brake Burnishing Procedure".
WARNING:
• Clean brake pads and shoes with a waste cl oth, then wipe with a dust collector.
Precaution for Brake ControlINFOID:0000000005928463
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting 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.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer (what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check boos ter operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness pinches, open circuits or improper wiring.
• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs , bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, roto rs, calipers, etc.), components related to engine (muf-
fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
• Driving with broken or excessively worn suspensi on components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The noise is a result of the normal operation of the TCS and VDC.
• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as sharp curves on a freeway), the VDC may not operate no rmally, or the VDC warning lamp and the SLIP indi-
cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.
SBR686C
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSISBRC-57
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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
TROUBLE DIAGNOSISBRC-63
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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 DIAGNOSISBRC-65
< SERVICE INFORMATION > [VDC/TCS/ABS]
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× : Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
• Do not perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be performed with the AB S warning lamp, VDC indicator lamp, SLIP indicator
lamp or brake warning lamp on.
• ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp are on
during active test.
NOTE:
• When active test is performed while depressing the pedal, the pedal depression amount will change. This is
normal. (Only solenoid valve and ABS motor)
• “TEST IS STOPPED” is displayed 10 seconds after operation start.
• After “TEST IS STOPPED” is displayed, to perform test again, touch BACK.
Test Item
SOLENOID VALVE• When performing an active test of the ABS function, select “MAIN SIGNALS” for each test item.
• For ABS solenoid valve, touch “Up”, “Keep”, and “Dow n” on the display screen. For ABS solenoid valve
(ACT), touch “Up”, “ACT UP ”, “ACT KEEP” and confirm that solenoid valves operate as shown in the table
below.
VDC FAIL SIG
(On/Off) ——
×VDC fail signal (On/Off) status is displayed.
CRANKING SIG
(On/Off) ——
×Cranking condition (On/Off) status is displayed.
FLUID LEV SW
(On/Off) ×
— ×Brake fluid level switch (On/Off) status is dis-
played.
PARK BRAKE SW
(On/Off) ×
— ×Parking brake switch (On/Off) status is displayed.
USV[FL-RR]
(On/Off) ——
×Primary side USV solenoid valve (On/Off) status is
displayed.
USV[FR-RL]
(On/Off) ——
×Secondary side USV solenoid valve (On/Off) sta-
tus is displayed.
HSV[FL-RR]
(On/Off) ——
×Primary side HSV solenoid valve (On/Off) status is
displayed.
HSV[FR-RL]
(On/Off) ——
×Secondary side HSV solenoid valve (On/Off) sta-
tus is displayed.
V/R OUTPUT
(On/Off) ——
×Valve relay operation signal (On/Off) status is dis-
played.
M/R OUTPUT
(On/Off) ——
×Motor relay operation signal (On/Off) status is dis-
played.
ENGINE RPM
(rpm) ×
— ×Engine speed judged by CAN communication sig-
nal is displayed.
Operation ABS solenoid va
lve ABS solenoid valve (ACT)
Up Keep Down Up ACT UP ACT KEEP
FR RH SOL FR RH IN SOL Off On On — —
—
FR RH OUT SOL Off Off On* — — —
USV [FR-RL] Off Off On* — — —
HSV [FR-RL] Off Off On* — — —
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
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