Nissan Tiida C11. Manual - part 94

BRC-142

< COMPONENT DIAGNOSIS >

[ESP/TCS/ABS]

C1143, C1144 STEERING ANGLE SENSOR

C1143, C1144 STEERING ANGLE SENSOR

Description

INFOID: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 Logic

INFOID: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 Procedure

INFOID: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 CIRCUIT

Neutral 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]

C

D

E

G

H

I

J

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A

B

BRC

N

O

P

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 Inspection

INFOID: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 Requirement

INFOID: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]

C

D

E

G

H

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K

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M

A

B

BRC

N

O

P

C1155 BRAKE FLUID LEVEL SWITCH

Description

INFOID: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 Logic

INFOID: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 Procedure

INFOID: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 LOW

Brake 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