Nissan Teana J32. Manual - part 244

BRC-34

< COMPONENT DIAGNOSIS >

[ABS]

C1121, C1123, C1125, C1127 OUT ABS SOL

C1121, C1123, C1125, C1127 OUT ABS SOL

Description

INFOID:0000000003767295

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 Logic

INFOID:0000000003766774

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch ON.

2.

Perform ABS actuator and electric unit (control unit) self-diagnosis.

Is DTC “C1121”, “C1123”, “C1125” or “C1127” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-34, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003767296

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) connector.

3.

Check terminal for deformation, disconnection, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT

Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT

Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.

DTC

Display item

Malfunction detected condition

Possible cause

C1121

FR LH OUT ABS SOL

When 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 SOL

When the control unit detects a malfunction in the front 
RH outlet solenoid circuit.

C1125

RR LH OUT ABS SOL

When the control unit detects a malfunction in the rear LH 
outlet solenoid circuit.

C1127

RR RH OUT ABS SOL

When the control unit detects a malfunction in the rear 
RH outlet solenoid circuit.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E34

3

Ground

Battery voltage

C1121, C1123, C1125, C1127 OUT ABS SOL

BRC-35

< COMPONENT DIAGNOSIS >

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Is the inspection result normal?

YES

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

NO

>> Repair or replace damaged parts.

Component Inspection

INFOID:0000000003767297

1.

CHECK ACTIVE TEST

1.

Select each test menu item on “ACTIVE TEST”.

2.

On the display, touch “Up”, “Keep” and “Down”, and check that the system operates as shown in the table
below.

*: On for 1 to 2 seconds after the touch, and then Off.

NOTE:

A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is
an operation for checking.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-34, "Diagnosis Procedure"

.

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E34

1

Ground

Existed

4

Test item

Display item

Display (Note)

Up

Keep

Down

FR RH SOL

FR RH IN SOL

Off

On

On

FR RH OUT SOL

Off

Off

On*

FR LH SOL

FR LH IN SOL

Off

On

On

FR LH OUT SOL

Off

Off

On*

RR RH SOL

RR RH IN SOL

Off

On

On

RR RH OUT SOL

Off

Off

On*

RR LH SOL

RR LH IN SOL

Off

On

On

RR LH OUT SOL

Off

Off

On*

BRC-36

< COMPONENT DIAGNOSIS >

[ABS]

C1140 ACTUATOR RELAY SYSTEM

C1140 ACTUATOR RELAY SYSTEM

Description

INFOID:0000000003766753

Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and
electric unit (control unit). 

DTC Logic

INFOID:0000000003766754

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch ON.

2.

Perform ABS actuator and electric unit (control unit) self-diagnosis.

Is DTC “C1140” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-36, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003766755

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) connector.

3.

Check terminal for deformation, disconnection, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT

Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT

Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.

DTC

Display item

Malfunction detected condition

Possible cause

C1140

ACTUATOR RLY

During the actuator relay operating with OFF, when the 
actuator relay turns ON, or when the control line for the 
relay is shorted to the ground.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

During the actuator relay operating with ON, when the 
actuator relay turns ON, or when the control line for the 
relay is open.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E34

3

Ground

Battery voltage

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E34

1

Ground

Existed

4

C1140 ACTUATOR RELAY SYSTEM

BRC-37

< COMPONENT DIAGNOSIS >

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Is the inspection result normal?

YES

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

NO

>> Repair or replace damaged parts.

Component Inspection

INFOID:0000000003767291

1.

CHECK ACTIVE TEST

1.

On “ACTIVE TEST”, select “ABS MOTOR”.

2.

Touch “On” and “Off” on screen. Make sure motor relay and actuator relay operates as shown in table
below.

NOTE:

A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is
an operation for checking.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-36, "Diagnosis Procedure"

.

Test item

Display item

Display

On

Off

ABS MOTOR

MOTOR RELAY

On

Off

ACTUATOR RLY (Note)

On

On