Nissan Sentra. Manual - part 170

C1113, C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

BRC-67

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1113, C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

DTC Logic

INFOID:0000000009757844

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch OFF to ON.

2. Perform self diagnostic result.
Is DTC C1113, C1145 or C1146 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-67, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757845

1.

REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Replace ABS actuator and electric unit (control unit).

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-110, "Removal and Installa-

tion"

.

DTC

Display Item

Malfunction detected condition

Possible causes

C1113

G SENSOR

When a malfunction is detected in longitunal G sensor 
signal.

• ABS actuator and electric unit 

(control unit)

C1145

YAW RATE SENSOR

• When a malfunction is detected in yaw rate signal.
• When yaw rate signal is not continuously received 

for 2 seconds or more.

• When side G signal is not continuously received for 

2 seconds or more.

• When decel G signal is not continuously received 

for 2 seconds or more.

C1146

SIDE G-SEN CIRCUIT

When a malfunction is detected in side/decel G sig-
nal.

BRC-68

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1115 ABS SENSOR [ABNORMAL SIGNAL]

C1115 ABS SENSOR [ABNORMAL SIGNAL]

DTC Logic

INFOID:0000000009757846

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF DIAGNOSTIC RESULT

 With 

CONSULT.

1. Start engine and drive vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute.

2. Perform self diagnostic result.
Is DTC C1115 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-68, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757847

Regarding Wiring Diagram information, refer to 

BRC-44, "Wiring Diagram"

.

CAUTION:

Do not check between wheel sensor terminals.

1.

CONNECTOR INSPECTION

1. Disconnect ABS actuator and electric unit (control unit) connector E33 and wheel sensor connector of

wheel with DTC.

2. Check terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace as necessary.

2.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.

2. Turn on the ABS active wheel sensor tester power switch.

NOTE:

The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the

battery in the ABS active wheel sensor tester before proceeding.

3. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel

sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.

NOTE:

If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and

retest.

Does the ABS active wheel sensor tester detect a signal?

YES

>> GO TO 3.

NO

>> Replace the wheel sensor. Refer to 

BRC-106, "FRONT WHEEL SENSOR : Removal and Installa-

tion"

 or 

BRC-107, "REAR WHEEL SENSOR : Removal and Installation"

.

3.

CHECK TIRES

Check the inflation pressure, wear and size of each tire.
Is the inspection result normal?

DTC

Display Item

Malfunction detected condition

Possible causes

C1115

ABS SENSOR
[ABNORMAL SIGNAL]

When difference in wheel speed between any wheel 
and others is detected while the vehicle is driven, be-
cause of installation of tires other than specified.

• Harness or connector
• Wheel sensor
• Sensor rotor
• ABS actuator and electric unit 

(control unit)

C1115 ABS SENSOR [ABNORMAL SIGNAL]

BRC-69

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

YES

>> GO TO 4.

NO

>> Adjust tire pressure, or replace tire(s). 

4.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

Check continuity between wheel sensor connector terminals and ground of wheel with DTC.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the circuit.

5.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector E33 and wheel sensor con-

nector of wheel with DTC.

Is the inspection result normal?

YES

>> Replace the ABS actuator and electric unit (control unit). Refer to 

BRC-110, "Removal and Instal-

lation"

.

NO

>> Repair the circuit.

Wheel Sensor

Ground

Continuity

Wheel

Connector

Terminal

Front LH

E61

1

—

No

2

Front RH

E52

1

2

Rear LH

B54

1

2

Rear RH

B55

1

2

Wheel sensor

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

Yes

Front LH

E33

8

E61

2

19

1

Front RH

4

E52

2

16

1

Rear LH

18

B54

2

31

1

Rear RH

29

B55

2

17

1

BRC-70

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1116 STOP LAMP SWITCH

C1116 STOP LAMP SWITCH

DTC Logic

INFOID:0000000009757848

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-70, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757849

Regarding Wiring Diagram information, refer to 

BRC-44, "Wiring Diagram"

.

1.

CONNECTOR INSPECTION

1. Disconnect stop lamp switch connector and ABS actuator and electric unit (control unit) connector.

2. Check terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace as necessary.

2.

CHECK STOP LAMP SWITCH CIRCUIT

1. Connect stop lamp switch connector.

2. Check voltage between ABS actuator and electric unit (control unit) connector E33 terminal 30 and

ground.

Is the inspection result normal?

YES

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-110, "Removal and Installa-

tion"

.

NO

>> GO TO 3

3.

CHECK STOP LAMP SWITCH CIRCUIT FOR OPEN

1. Disconnect stop lamp switch connector.

2. Check continuity between ABS actuator and electric unit (control unit) connector E33 terminal 30 and stop

lamp switch connector E60 terminal 2.

DTC

Display item

Malfunction detected condition

Possible cause

C1116

STOP LAMP SW

When stop lamp switch circuit is open.

• Harness or connector
• Stop lamp switch
• ABS actuator and electric unit 

(control unit)

Self-diagnosis results

STOP LAMP SW

ABS actuator and electric unit (control unit)

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

E33

30

—

Brake pedal depressed

Battery voltage 

Brake pedal released

0V