2007 NISSAN TIIDA ABS

C1142 PRESS SENSOR
BRC-141
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness or connector.
3.REAR PRESSURE SENSOR INSPECTION
1. Reconnect the rear pressure sensor and ABS actuator and electric unit (control unit) connectors.
2. Use “DATA MONITOR” to check if the status of “PRESS SEN2” is normal.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace the rear pressure sensor.
Component InspectionINFOID:0000000001731140
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “PRESS SENSOR” and “PRESS SEN2” and check the brake fluid pressure.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to diagnosis procedure. Refer to BRC-139, "
Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001731141
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END
ConditionPRESS SEN2
(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
ConditionPRESS SENSOR
and PRESS SEN2
(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

BRC-142
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1143, C1144 STEERING ANGLE SENSOR
C1143, C1144 STEERING ANGLE SENSOR
DescriptionINFOID:0000000001731142
The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel,
and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.
DTC LogicINFOID:0000000001731143
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-142, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731144
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Disconnect steering angle sensor connector.
4. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
5. 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 STEERING ANGLE SENSOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect steering angle sensor connector.
DTC Display item Malfunction detected condition Possible cause
C1143 ST ANG SEN CIRCUITNeutral position of steering angle sensor is dislocated, or
the steering angle sensor is malfunctioning. Harness or connector
 Steering angle sensor
 4WAS control unit (4WAS
models)
 ABS actuator and electric unit
(control unit) C1144 ST ANG SEN SIGNAL Neutral position of steering angle sensor is not finished.
Self-diagnosis results
ST ANG SEN CIRCUIT
ST ANG SEN SIGNAL

C1143, C1144 STEERING ANGLE SENSOR
BRC-143
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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3. Check continuity between steering angle sensor harness con-
nector terminal and ground.
4. Turn ignition switch ON.
5. Check voltage between steering angle sensor harness connec-
tor terminal and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK DATA MONITOR
1. Connect the steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
2. Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-184, "Removal and Installa-
tion".
NO >> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to BRC-
186, "Removal and Installation".
Component InspectionINFOID:0000000001731145
1.CHECK DATA MONITOR
Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to diagnosis procedure. Refer to BRC-142, "
Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001731146
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Steering angle sensor
—Continuity
Connector Terminal
M17 2 Ground Yes
WFIA0399E
Steering angle sensor
—Voltage
Connector Terminal
M17 3 Ground Battery voltage
AWFIA0023ZZ
Steering condition STR ANGLE SIG (DATA MONITOR)
Driving straight±2.5 °
Turn 90 ° to right Approx. +90 °
Turn 90 ° to left Approx. −90 °
Steering condition STR ANGLE SIG (DATA MONITOR)
Driving straight±2.5 °
Turn 90 ° to right Approx. +90 °
Turn 90 ° to left Approx. −90 °

BRC-144
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1143, C1144 STEERING ANGLE SENSOR
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END

C1155 BRAKE FLUID LEVEL SWITCH
BRC-145
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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C1155 BRAKE FLUID LEVEL SWITCH
DescriptionINFOID:0000000001731147
The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actu-
ator and electric unit (control unit).
DTC LogicINFOID:0000000001731148
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-56, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731149
INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector E125 and brake fluid level switch con-
nector E21.
2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace as necessary.
2.CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)
1. Check continuity between ABS actuator and electric unit (control
unit) harness connector E125 (A) and brake fluid level switch
harness connector E21 (B).
2. Check continuity between ABS actuator and electric unit (control
unit) harness connector E125 (A) and ground.
Is the inspection result normal?
DTC Display item Malfunction detected condition Possible cause
C1155 BR FLUID LEVEL LOWBrake fluid level is low or communication line between
the ABS actuator and electric unit (control unit) and brake
fluid level switch is open or shorted. Harness or connector
 Brake fluid level switch
 Brake fluid level
Self-diagnosis results
BR FLUID LEVEL LOW
ABS actuator and electric unit
(control unit)Brake fluid level switch
Continuity
Connector Terminal Connector Terminal
A: E125 8 B: E21 1 Yes
ABS actuator and electric unit (control unit)
—Continuity
Connector Terminal
A: E125 8 Ground No
AWFIA0025ZZ

BRC-146
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1155 BRAKE FLUID LEVEL SWITCH
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check continuity between brake fluid level switch harness connector
E21 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace malfunctioning components.
4.CHECK BRAKE FLUID LEVEL SWITCH
Check continuity between brake fluid level switch terminals.
Is the inspection result normal?
YES >> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control unit). Refer to BRC-184, "
Removal and
Installation".
NO >> Replace brake fluid level switch.
Component InspectionINFOID:0000000001731150
1.CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check continuity between brake fluid level switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace brake fluid level switch.
Special Repair RequirementINFOID:0000000001731151
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
Brake fluid level switch
— Continuity
Connector Terminal
E21 2 Ground Yes
AWFIA0026ZZ
Brake fluid level switch
Condition Continuity
Te r m i n a l
1 − 2When brake fluid is full in the reser-
voir tank.No
When brake fluid is empty in the
reservoir tank.Ye s
ALFIA0026ZZ
Brake fluid level switch
Condition Continuity
Te r m i n a l
1 − 2When brake fluid is full in the reser-
voir tank.No
When brake fluid is empty in the
reservoir tank.Ye s
ALFIA0026ZZ

C1155 BRAKE FLUID LEVEL SWITCH
BRC-147
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END

BRC-148
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1156 ST ANG SEN COM CIR
C1156 ST ANG SEN COM CIR
DescriptionINFOID:0000000001731152
The steering angle sensor is connected to the ABS actuator and electric unit (control unit) in addition to CAN
lines. CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle
multiplex communication line with high data communication speed and excellent error detection ability. Many
electronic control units are equipped onto a vehicle, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC LogicINFOID:0000000001731153
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-148, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731154
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E125,
check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
2. Reconnect connector and perform self-diagnosis.
Is above displayed on the self-diagnosis display?
YES >> Refer to BRC-86, "Work Flow".
NO >> INSPECTION END
DTC Display item Malfunction detected condition Possible cause
C1156 ST ANG SEN COM CIRWhen steering angle sensor is not transmitting CAN
communication signal to the ABS actuator and electric
unit (control unit). Harness or connector
 CAN communication line
 Steering angle sensor
 ABS actuator and electric unit
(control unit)
Self-diagnosis results
ST ANG SEN COM CIR
Self-diagnosis results
CAN COMM CIRCUIT
ST ANG SEN COM CIR