Infiniti EX35. Manual - part 332

 

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Infiniti EX35. Manual - part 332

 

 

C1110, C1153, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-43

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1110, C1153, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)

DTC Logic

INFOID:0000000003132890

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 “C1110”, “C1153” or “C1170” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-43, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003132891

1.

REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

CAUTION:

Replace ABS actuator and electric unit (control unit) when self-diagnostic result shows items other
than those applicable.

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

Special Repair Requirement

INFOID:0000000003430136

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to 

BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-

TRAL POSITION : Description"

.

>> END

DTC

Display item

Malfunction detected condition

Possible cause

C1110

CONTROLLER FAILURE

When there is an internal malfunction in the ABS actuator 
and electric unit (control unit).

ABS actuator and electric unit 
(control unit)

C1153

EMERGENCY BRAKE

When ABS actuator and electric unit (control unit) is mal-
functioning. (Pressure increase is too much or too little)

C1170

VARIANT CODING

In a case where VARIANT CODING is different.

BRC-44

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

Description

INFOID:0000000003132893

PUMP

The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure. 

MOTOR

The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control
unit). 

MOTOR RELAY

Activates or deactivates motor according to the signals transmitted by the ABS actuator and electric unit (con-
trol unit).

DTC Logic

INFOID:0000000003132894

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 “C1111” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-44, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003132895

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

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

3.

Check terminal for deformation, disconnect, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

Check the voltage between the 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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 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

C1111

PUMP MOTOR

During the actuator motor operating with ON, when the 
actuator motor turns OFF, or when the control line for ac-
tuator motor relay is open.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

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

ABS actuator and electric unit (control unit)

Voltage

Connector

Terminal

E41

2

Ground

Battery voltage

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

BRC-45

< COMPONENT DIAGNOSIS >

[VDC/TCS/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:0000000003132896

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-44, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000003430137

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to 

BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-

TRAL POSITION : Description"

.

>> END

ABS actuator and electric unit (control unit)

Continuity

Connector

Terminal

E41

1

Ground

Existed

4

Test item

Display item

Display

On

Off

ABS MOTOR

MOTOR RELAY

On

Off

ACTUATOR RLY (Note)

On

On

BRC-46

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1114 ACTUATOR RELAY SYSTEM

C1114 ACTUATOR RELAY SYSTEM

Description

INFOID:0000000003132898

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

DTC Logic

INFOID:0000000003132899

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 “C1114” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-46, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003132900

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, VDC SWITCH-OVER VALVE 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, VDC SWITCH-OVER VALVE 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

C1114

MAIN RELAY

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

E41

3

Ground

Battery voltage

ABS actuator and electric unit (control unit)

Continuity

Connector

Terminal

E41

1

Ground

Existed

4

 

 

 

 

 

 

 

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