2007 NISSAN TIIDA front

C1115 WHEEL SENSOR
BRC-125
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4
NO >> Adjust tire pressure or replace tire(s).
4.CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FA X - 5 , "
On-Vehicle Inspection and Service" (front) or RAX-5,
"On-Vehicle Inspection and Service" (rear).
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace as necessary. Refer to FAX-7, "
Removal and Installation" (front) or RAX-6,
"Removal and Installation" (rear).
5.CHECK WIRING HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.
2. Check continuity between wheel sensor harness connector ter-
minals and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair the circuit.
6.CHECK WIRING HARNESS FOR OPEN CIRCUIT
1. Check continuity between ABS actuator and electric unit (control unit) harness connector E125 and the
malfunctioning wheel sensor harness connector E18, E117, C10, or C11.
Is the inspection result normal?
YES >> Replace the ABS actuator and electric unit (control unit). Refer to BRC-184, "Removal and Instal-
lation".
NO >> Repair the circuit.
Component InspectionINFOID:0000000001731112
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.Continuity should not exist.
WFIA0343E
Wheel sensorABS actuator and
electric unit (control unit)Wheel sensor
Continuity
Connector Terminal Connector Terminal
Front LH
E12545
E181
Ye s 46 2
Front RH34
E1171
33 2
Rear LH37
C112
36 1
Rear RH42
C102
43 1
Wheel sensor Vehicle speed (DATA MONITOR)

C1120, C1122, C1124, C1126 IN ABS SOL
BRC-129
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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C1120, C1122, C1124, C1126 IN ABS SOL
DescriptionINFOID:0000000001731118
The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731119
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-46, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731120
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
4. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-25, "
CONSULT-III Function
(ABS)".
Is any item indicated on the self-diagnosis display?
YES >> GO TO 2
NO >> Poor connection of connector terminal. Repair or replace connector.
2.CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
DTC Display item Malfunction detected condition Possible cause
C1120 FR LH IN ABS SOLWhen the control unit detects a malfunction in the front
LH inlet solenoid circuit.
 ABS actuator and electric unit
(control unit) C1122 FR RH IN ABS SOLWhen the control unit detects a malfunction in the front
RH inlet solenoid circuit.
C1124 RR LH IN ABS SOLWhen the control unit detects a malfunction in the rear LH
inlet solenoid circuit.
C1126 RR RH IN ABS SOLWhen the control unit detects a malfunction in the rear
RH inlet solenoid circuit.
Self-diagnosis results
FR LH IN ABS SOL
FR RH IN ABS SOL
RR LH IN ABS SOL
RR RH IN ABS SOL

BRC-132
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1121, C1123, C1125, C1127 OUT ABS SOL
C1121, C1123, C1125, C1127 OUT ABS SOL
DescriptionINFOID:0000000001731123
The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731124
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-49, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731125
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
4. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-25, "
CONSULT-III Function
(ABS)".
Is any item indicated on the self-diagnosis display?
YES >> GO TO 2
NO >> Poor connection of connector terminal. Repair or replace connector.
2.CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
DTC Display item Malfunction detected condition Possible cause
C1121 FR LH OUT ABS SOLWhen the control unit detects a malfunction in the front
LH outlet solenoid circuit.
 ABS actuator and electric unit
(control unit) C1123 FR RH OUT ABS SOLWhen the control unit detects a malfunction in the front
RH outlet solenoid circuit.
C1125 RR LH OUT ABS SOLWhen the control unit detects a malfunction in the rear LH
outlet solenoid circuit.
C1127 RR RH OUT ABS SOLWhen the control unit detects a malfunction in the rear
RH outlet solenoid circuit.
Self-diagnosis results
FR LH OUT ABS SOL
FR RH OUT ABS SOL
RR LH OUT ABS SOL
RR RH OUT ABS SOL

C1142 PRESS SENSOR
BRC-139
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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C1142 PRESS SENSOR
DescriptionINFOID:0000000001731137
The front and rear pressure sensors convert the brake fluid pressure to an electric signal and transmit it to the
ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731138
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-139, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731139
FRONT PRESSURE SENSOR INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the front pressure sensor connector E31 and ABS actuator and electric unit (control unit) con-
nector E125 and inspect the terminals for deformation, disconnection, looseness, or damage.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair connector.
2.FRONT PRESSURE SENSOR CIRCUIT INSPECTION
1. Measure the continuity between the ABS actuator and electric
unit (control unit) harness connector E125 (A) and front pres-
sure sensor harness connector E31 (B).
2. Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
(A) and body ground.
DTC Display item Malfunction detected condition Possible cause
C1142 PRESS SEN CIRCUITPressure sensor signal line is open or shorted, or pres-
sure sensor is malfunctioning. Harness or connector
 Pressure sensor
 ABS actuator and electric unit
(control unit)
Self-diagnosis results
PRESS SEN CIRCUIT
ABS actuator and electric unit
(control unit)Front pressure sensor
Continuity
Connector Terminal Connector Terminal
A: E12518
B: E313
Ye s 19 1
20 2
AWFIA0021ZZ

BRC-140
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1142 PRESS SENSOR
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness or connector.
3.FRONT PRESSURE SENSOR INSPECTION
1. Reconnect the front pressure sensor and ABS actuator and electric unit (control unit) connectors.
2. Use “DATA MONITOR” to check if the status of “PRESS SENSOR” is normal.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace the front pressure sensor.
REAR PRESSURE SENSOR INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the rear pressure sensor connector E32 and ABS actuator and electric unit (control unit) con-
nector E125 and inspect the terminals for deformation, disconnection, looseness, or damage.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair connector.
2.REAR PRESSURE SENSOR CIRCUIT INSPECTION
1. Measure the continuity between the ABS actuator and electric
unit (control unit) harness connector E125 (A) and rear pressure
sensor harness connector E32 (B).
2. Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
(A) and body ground.
ABS actuator and electric unit (control
unit)
—Continuity
Connector Terminal
A: E12518
Ground No 19
20
ConditionPRESS SENSOR
(DATA MONITOR)
With ignition switch turned ON and brake pedal released. Approx. 0 bar
With ignition switch turned ON and brake pedal depressed. Positive value
ABS actuator and electric unit
(control unit)Rear pressure sensor
Continuity
Connector Terminal Connector Terminal
A: E12521
B: E321
Ye s 22 3
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ABS actuator and electric unit (control
unit)
—Continuity
Connector Terminal
A: E12521
Ground No 22
23
AWFIA0022ZZ

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-161
< ECU DIAGNOSIS >[ESP/TCS/ABS]
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SIDE G-SENSOR Transverse G detected by side G sensorVehicle stopped
Approx. 0 m/s
2
Vehicle turning rightNegative value
(m/s2)
Vehicle turning leftPositive value
(m/s
2)
STR ANGLE SIGSteering angle detected by steering angle
sensorStraight-ahead Approx. 0°
Steering wheel turned –720 to 720°
PRESS SENSORBrake fluid pressure detected by front pres-
sure sensorWith ignition switch turned ON and brake
pedal releasedApprox. 0 bar
With ignition switch turned ON and brake
pedal depressed–40 to 300 bar
ENGINE SPEED With engine runningWith engine stopped 0 rpm
Engine runningAlmost in accor-
dance with tachome-
ter display
FLUID LEV SW Brake fluid level switch signal statusWhen brake fluid level switch ON ON
When brake fluid level switch OFF OFF
FR RH IN SOL Operation status of each solenoid valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
FR RH OUT SOL Operation status of each solenoid valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
FR LH IN SOL Operation status of each solenoid valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
FR LH OUT SOL Operation status of each solenoid valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
RR RH IN SOL Operation status of each solenoid valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF Monitor item Display contentData monitor
ConditionReference value in
normal operation

VDC/TCS/ABS
BRC-171
< SYMPTOM DIAGNOSIS >[ESP/TCS/ABS]
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SYMPTOM DIAGNOSIS
VDC/TCS/ABS
Symptom TableINFOID:0000000001731200
If ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp turn ON, perform self-diagnosis.
NOTE:
 1: The ABS does not operate when the speed is 10 km/h (6 MPH) or less.
 2: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed. However, this is normal.
- When shifting gears
- When driving on slippery road
- During cornering at high speed
- When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
- When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]Symptom Check item Reference
Excessive ABS function operation fre-
quencyBrake force distribution
BRC-74, "
Diagno-
sis Procedure"Looseness of front and rear axle
Wheel sensor and rotor system
Unexpected pedal reactionBrake pedal stroke
BRC-75, "
Diagno-
sis Procedure"Make sure the braking force is sufficient when the ABS is not operating.
The braking distance is long Check stopping distance when the ABS is not operating.BRC-76, "
Diagno-
sis Procedure"
ABS function does not operate (Note 1) ABS actuator and electric unit (control unit)BRC-77, "Diagno-
sis Procedure"
Pedal vibration or ABS operation sound
occurs (Note 2)Brake pedal
BRC-78, "Diagno-
sis Procedure"ABS actuator and electric unit (control unit)
Vehicle jerks during VDC/TCS/ABS con-
trolABS actuator and electric unit (control unit)
XX-XX, "*****"
TCM
ECM

BRC-172
< SYMPTOM DIAGNOSIS >[ESP/TCS/ABS]
EXCESSIVE ABS FUNCTION OPERATION FREQUENCY
EXCESSIVE ABS FUNCTION OPERATION FREQUENCY
Diagnosis ProcedureINFOID:0000000001731201
1.CHECK START
Check front and rear brake force distribution using a brake tester.
Is the inspection result normal?
YES >> GO TO 2
NO >> Check brake system.
2.CHECK FRONT AND REAR AXLE
Make sure that there is no excessive play in the front and rear axles. Refer to front: FA X - 5 , "
On-Vehicle
Inspection and Service", Rear: RAX-5, "On-Vehicle Inspection and Service".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK WHEEL SENSOR AND SENSOR ROTOR
Check the following.
 Wheel sensor installation for damage.
 Sensor rotor installation for damage.
 Wheel sensor connector connection.
 Wheel sensor harness inspection.
Is the inspection result normal?
YES >> GO TO 4
NO >>  Replace wheel sensor or sensor rotor. Refer to BRC-182, "
Removal and Installation".
 Repair harness.
4.CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.
Is the ABS warning lamp illuminated?
YES >> Perform self-diagnosis. Refer to BRC-105, "CONSULT-III Function (ABS)".
NO >> Normal