Nissan Altima HL32 Hybrid. Manual - part 127

C11A0, C1336

BRC-73

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C11A0, C1336

Description

INFOID:0000000004212651

The brake ECU receives signals from the yaw rate/side/decel G sensor through the CAN communication sys-

tem.

The yaw rate sensor has the built in acceleration sensor and detects the vehicle

′s condition using 2 circuits

(GL1, GL2).

If there is trouble in the bus lines between the yaw rate/side/decel G sensor and the CAN communication sys-

tem, the DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration sensor communica-

tion trouble) are output.

The DTCs are also output when the calibration has not been completed.

DTC Logic

INFOID:0000000004212652

Diagnosis Procedure

INFOID:0000000004212653

CAUTION:

When replacing the brake ECU, perform initialization of the linear solenoid valve and calibration.

NOTE:

When U0123, U0124 or U0126 is output along with C11A0 or C1336, inspect and repair trouble areas indi-

cated by U0123, U0124 or U0126 first.

1.

PERFORM ZERO POINT CALIBRATION OF YAW RATE/SIDE/DECEL G SENSOR

Perform zero point calibration of the yaw rate/side/decel G sensor.

>> GO TO 2.

2.

RECONFIRM DTC

1. Turn the ignition switch OFF.

2. Clear the DTC.

3. Turn the ignition switch ON.

4. Check if the same DTC is recorded.

Result

DTC

INF code

Display item

DTC detection condition

Trouble area

C11A0

—

YAW RATE SN CALIB

Yaw rate sensor zero point calibration is unfin-
ished.

• Brake  ECU
• Yaw rate/side/decel G 

sensor

• Zero point calibration 

undone
(Perform zero point cal-
ibration and check 
DTC. If DTC is not out-
put again, the sensor is 
normal.)

C1336

—

G SEN CALIB

When either of the following is detected.
1.

Vehicle speed increases with unfinished 
zero point calibration.

2.

Zero point calibration is not within speci-
fied range when zero point calibration is 
finished.

• Brake  ECU
• Yaw rate/side/decel G 

sensor

• Zero point calibration 

undone
(Perform zero point cal-
ibration and check 
DTC. If DTC is not out-
put again, the sensor is 
normal.)

Condition

Proceed to

DTCs (C11A0 and/or C1336) are output.

A

DTCs (C11A0 and/or C1336) are not output.

B

BRC-74

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C11A0, C1336

NOTE:

• The DTCs are recorded because zero point calibration has not been completed.

• End the procedure as the same DTCs are not recorded after completion of zero point calibration.

A

>> GO  TO  3.

B

>> INSPECTION END

3.

CHECK YAW RATE/SIDE/DECEL G SENSOR INSTALLATION

1. Turn the ignition switch OFF.

2. Check that the yaw rate/side/decel G sensor has been installed properly.
Is the inspection result normal?

YES

>> Replace brake ECU.

NO

>> Install yaw rate/side/decel G sensor correctly.

Special Repair Requirement

INFOID:0000000004212654

1.

ZERO ADJUSTMENT FOR EACH SENSOR AND OFFSET LEANING FOR LINEAR SOLENOID VALVE

After erasing brake ECU memories, perform zero adjustment of following sensors and initialization of linear

solenoid valve.

• Steering angle sensor: 

BRC-9, "PERFORM ZERO POINT OF STEERING ANGLE SENSOR : Description"

.

• Yaw rate/side/decel G sensor: 

BRC-8, "PERFORM ZERO POINT OF YAW RATE/SIDE/DECEL G SENSOR

: Description"

.

• Brake stroke sensor: 

BRC-9, "PERFORM ADJUSTMENT OF STROKE SENSOR : Description"

.

• Linear solenoid valve: 

BRC-7, "PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALI-

BRATION : Description"

.

>> END

C1231

BRC-75

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1231

Description

INFOID:0000000004212655

The brake ECU inputs the steering angle sensor signal through the CAN communication. When a malfunction

occurs in the communication line with the steering angle sensor, DTC U0126 (malfunction in communication

with steering angle sensor) is output.

DTC Logic

INFOID:0000000004212656

Diagnosis Procedure

INFOID:0000000004212657

NOTE:

• When U0126 is output together with C1231, inspect and repair the trouble areas indicated by U0126 first.

• When the wheel sensor or the yaw rate sensor has trouble, DTCs for the steering angle sensor may be out-

put even when the steering angle sensor is normal. When DTCs for the wheel sensor or yaw rate sensor are

output together with other DTCs for the steering angle sensor, inspect and repair the wheel sensor and yaw

rate sensor first, and then inspect and repair the steering angle sensor.

1.

CHECK DTC

1. Clear the DTC.

2. Turn the ignition switch OFF.

3. Turn the ignition switch ON again and check that no CAN communication system DTC is output.

4. Drive the vehicle and turn the steering wheel to the right and left at the speed of 35 km/h (22 MPH) and

check that no wheel sensor and yaw rate sensor DTCs are output.

Result

NOTE:

• If there is a malfunction in the wheel sensor or the yaw rate sensor, an abnormal value may be output

although the steering angle sensor is normal.

• If the wheel sensor and yaw rate sensor DTCs are output simultaneously, repair the sensors and inspect

the steering angle sensor.

A

>> GO TO 2.

B

>> Inspect CAN communication system.

C

>> Repair circuit indicated by output DTC.

2.

INSPECT STEERING ANGLE SENSOR (POWER SOURCE TERMINAL)

1. Turn the ignition switch OFF.

2. Remove the steering wheel and the column cover lower.

3. Disconnect the steering angle sensor connector M53.

DTC

INF code

Display item

DTC detection condition

Trouble area

C1231

—

STR ANGLE SEN CIR

When either of the following is detected.
1.

Steering angle sensor malfunction signal 
is received when data transmission is 
valid (internal malfunction is detected in 
sensor self check).

2.

A signal of +B open in steering angle 
sensor is received when communication 
with sensor is valid.

• Steering angle sensor
• Steering angle sensor 

circuit

• Steering angle sensor 

power supply

• Brake  ECU

Condition

Proceed to

No CAN communication system DTC and Wheel sensor or yaw rate 
sensor DTC are output.

A

CAN Communication system DTC is output.

B

Wheel snesor or yaw rate sensor DTC is output.

C

BRC-76

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1231

4. Measure the voltage according to the value(s) in the table below.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

INSPECT STEERING ANGLE SENSOR (GROUND TERMINAL)

1. Turn the ignition switch OFF.

2. Measure the resistance according to the value(s) in the table

below.

NOTE:

If troubleshooting has been carried out according to the Problem

Symptoms Table, refer back to the table and proceed to the next

step.

Is the inspection result normal?

YES

>> Replace steering angle sensor.

NO

>> Repair or replace harness or connector.

Special Repair Requirement

INFOID:0000000004212658

1.

ZERO ADJUSTMENT FOR EACH SENSOR AND OFFSET LEANING FOR LINEAR SOLENOID VALVE

After erasing brake ECU memories, perform zero adjustment of following sensors and initialization of linear

solenoid valve.

• Steering angle sensor: 

BRC-9, "PERFORM ZERO POINT OF STEERING ANGLE SENSOR : Description"

.

• Yaw rate/side/decel G sensor: 

BRC-8, "PERFORM ZERO POINT OF YAW RATE/SIDE/DECEL G SENSOR

: Description"

.

• Brake stroke sensor: 

BRC-9, "PERFORM ADJUSTMENT OF STROKE SENSOR : Description"

.

• Linear solenoid valve: 

BRC-7, "PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALI-

BRATION : Description"

.

>> END

Steering angle sensor

Condition

Specified condition

Connector

Terminal

M53

4 – Ground

Ignition switch ON

10 to 14 V

M53

7 – Ground

Always

10 to 14 V

JSFIA0338GB

Steering angle sensor

Condition

Specified condition

Connector

Terminal

M53

1 – Ground

Always

Below 1 

Ω

JSFIA0339GB