Infiniti EX35. Manual - part 331

C1105, C1106, C1107, C1108 WHEEL SENSOR

BRC-39

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

4.

Check terminal to see if it is deformed, disconnected, looseness, etc.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK WHEEL SENSOR HARNESS

1.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel
sensor harness connector. (Also check continuity when steering wheel is turned right and left and when
sensor harness inside the wheel house is moved.)

Measurement terminal for power supply circuit

Measurement terminal for signal circuit

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT

1.

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

2.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

3.

Check the voltage between wheel sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E41

9

E27 (Front RH)

1

Existed

26

E60 (Front LH)

7

B33 (Rear RH)

6

B34 (Rear LH)

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E41

10

E27 (Front RH)

2

Existed

5

E60 (Front LH)

29

B33 (Rear RH)

27

B34 (Rear LH)

ABS actuator and electric unit (control unit)

Continuity

Connector

Terminal

Connector

Terminal

E41

9, 10

E41

1, 4

Not existed

26, 5

7, 29

6, 27

Wheel sensor

—

Voltage

Connector

Terminal

E27 (Front RH)

1

Ground

8 V or more

E60 (Front LH)

B33 (Rear RH)

B34 (Rear LH)

BRC-40

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1105, C1106, C1107, C1108 WHEEL SENSOR

NO

>> Repair or replace damaged parts.

6.

CHECK DATA MONITOR

1.

Turn the ignition switch OFF.

2.

Connect each wheel sensor connector.

3.

Check wheel sensor signal. Refer to 

BRC-37, "Component Inspection"

.

Is the inspection result normal?

YES

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

NO

>> Repair or replace damaged parts.

Component Inspection

INFOID:0000000003430123

1.

CHECK DATA MONITOR

On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.

NOTE:

Confirm tire pressure is normal.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-38, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000003430124

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

Wheel sensor

Condition

Vehicle speed (DATA MONITOR)

FR LH SENSOR

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note)

Nearly matches the speedometer dis-
play (

±

 10% or less)

FR RH SENSOR

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note)

Nearly matches the speedometer dis-
play (

±

 10% or less)

RR LH SENSOR

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note)

Nearly matches the speedometer dis-
play (

±

 10% or less)

RR RH SENSOR

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note)

Nearly matches the speedometer dis-
play (

±

 10% or less)

C1109 POWER AND GROUND SYSTEM

BRC-41

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1109 POWER AND GROUND SYSTEM

Description

INFOID:0000000003132886

Supplies electric power to the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003132887

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC REPRODUCTION PROCEDURE

1.

Turn the ignition switch OFF to ON.

2.

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

Is DTC “C1109” detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-41, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003132888

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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT

1.

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

2.

Check 30A fusible link (L).

3.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and battery
positive terminal.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts. (Check ABS earth bolt for tightness and corrosion.)

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

C1109

BATTERY VOLTAGE
[ABNORMAL]

When the ABS actuator and electric unit (control unit) 
power supply voltage is lower than normal.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

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

3

Battery positive 

terminal

Existed

BRC-42

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1109 POWER AND GROUND SYSTEM

Is the inspection result normal?

YES

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

NO

>> Repair or replace damaged parts. (Check ABS earth bolt for tightness and corrosion.)

Special Repair Requirement

INFOID:0000000003430135

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