Nissan Pathfinder (2009 year). Instruction — part 101

C1101, C1102, C1103, C1104 WHEEL SENSOR-1

BRC-33

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

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J

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M

A

B

BRC

N

O

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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-129, "Removal and Installation"

.

3.

CHECK TIRES

Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?

YES

>> GO TO 4

NO

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

4.

CHECK WHEEL BEARINGS

Check wheel bearing axial end play. Refer to

FAX-5, "On-Vehicle Inspection and Service"

(front) or

RAX-5,

"On-Vehicle Inspection and Service"

(rear).

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace as necessary. Refer to

FAX-9, "Removal and Installation"

(front) or

RAX-8,

"Removal and Installation"

(rear).

5.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

1.

Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.

2.

Check continuity between front wheel sensor connector termi-
nals (A) or rear wheel sensor connector terminals (B) and
ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair the circuit.

6.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

1.

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning
wheel sensor connector.

Is the inspection result normal?

YES

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

BRC-131, "Removal and Instal-

lation"

.

NO

>> Repair the circuit.

Continuity should not exist.

AWFIA0464ZZ

Wheel sensor

ABS actuator and

electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

Front LH

E125 (with VQ40DE)

E127 (with VK56DE)

45

E18

1

Yes

46

2

Front RH

34

E117

1

33

2

Rear LH

37

C13

3

36

4

Rear RH

42

1

43

2

2009 Pathfinder

BRC-34

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1101, C1102, C1103, C1104 WHEEL SENSOR-1

Component Inspection

INFOID:0000000003937734

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.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to

BRC-32, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000003937735

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

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

BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to

BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

Wheel sensor

Vehicle speed (DATA MONITOR)

FR LH SENSOR

Nearly matches the speedometer dis-
play (

±

10% or less)

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR

2009 Pathfinder

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

BRC-35

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

Description

INFOID:0000000003937736

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current
signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003937737

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-35, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000004414761

CAUTION:

Do not check between wheel sensor terminals.

INSPECTION PROCEDURE

1.

CONNECTOR INSPECTION

Disconnect the ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunc-
tioning code.
Check the terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace as necessary.

DTC

Display item

Malfunction detected condition

Possible cause

C1105

RR RH SENSOR-2

When the circuit in the rear RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.

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

(control unit)

C1106

RR LH SENSOR-2

When the circuit in the rear LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.

C1107

FR RH SENSOR-2

When the circuit in the front RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.

C1108

FR LH SENSOR-2

When the circuit in the front LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.

Self-diagnosis results

RR RH SENSOR-2

RR LH SENSOR-2

FR RH SENSOR-2

FR LH SENSOR-2

2009 Pathfinder

BRC-36

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

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-129, "Removal and Installation"

.

3.

CHECK TIRES

Check for inflation pressure, wear and size of each tire.

Are tire pressure and size correct and is tire wear within specifications?

YES

>> GO TO 4

NO

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

4.

CHECK WHEEL BEARINGS

Check wheel bearing axial end play. Refer to

FAX-5, "On-Vehicle Inspection and Service"

(front) or

RAX-5,

"On-Vehicle Inspection and Service"

(rear).

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace as necessary. Refer to

FAX-9, "Removal and Installation"

(front) or

RAX-8,

"Removal and Installation"

(rear).

5.

CHECK WIRING HARNESS FOR SHORT CIRCUIT

1.

Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.

2.

Check continuity between front wheel sensor connector termi-
nals (A) or rear wheel sensor connector terminals (B) and
ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair the circuit.

6.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

1.

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning
wheel sensor connector.

Continuity should not exist.

AWFIA0464ZZ

2009 Pathfinder

C1105, C1106, C1107, C1108 WHEEL SENSOR-2

BRC-37

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Is the inspection result normal?

YES

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

BRC-131, "Removal and Instal-

lation"

.

NO

>> Repair the circuit.

Component Inspection

INFOID:0000000003937739

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.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to

BRC-35, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000003937740

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

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

BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to

BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

Wheel sensor

ABS actuator and

electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

Front LH

E125 (with VQ40DE)

E127 (with VK56DE)

45

E18

1

Yes

46

2

Front RH

34

E117

1

33

2

Rear LH

37

C13

3

36

4

Rear RH

42

1

43

2

Wheel sensor

Vehicle speed (DATA MONITOR)

FR LH SENSOR

Nearly matches the speedometer dis-
play (

±

10% or less)

FR RH SENSOR

RR LH SENSOR

RR RH SENSOR

2009 Pathfinder

BRC-38

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1109 POWER AND GROUND SYSTEM

C1109 POWER AND GROUND SYSTEM

Description

INFOID:0000000003937741

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

DTC Logic

INFOID:0000000003937742

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-38, "Diagnosis Procedure (With VQ40DE)"

or

BRC-39, "Diagnosis Procedure (With VK56DE)"

.

NO

>> Inspection End

Diagnosis Procedure (With VQ40DE)

INFOID:0000000003937743

1.

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

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

3.

Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.

4.

Reconnect connectors and then perform the self-diagnosis. Refer to

BRC-26, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

NO

>> Poor connection of connector terminal. Repair or replace connector.

2.

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

GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Turn ignition switch ON and OFF and check voltage between
ABS actuator and electric unit (control unit) harness connector
terminal and ground.

4.

Turn ignition switch OFF.

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)

Self-diagnosis results

BATTERY VOLTAGE [ABNORMAL]

ABS actuator and electric unit

(control unit)

—

Condition

Voltage

Connector

Terminal

E125

8

Ground

Ignition switch: ON

Battery voltage

Ignition switch: OFF

Approx. 0V

AWFIA0466ZZ

2009 Pathfinder

C1109 POWER AND GROUND SYSTEM

BRC-39

< COMPONENT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

5.

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

Is the inspection result normal?

YES

>> Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunc-

tioning parts.

NO

>> Repair or replace malfunctioning components.

Diagnosis Procedure (With VK56DE)

INFOID:0000000004414763

1.

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

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

3.

Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.

4.

Reconnect connectors and then perform the self-diagnosis. Refer to

BRC-26, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 2

NO

>> Poor connection of connector terminal. Repair or replace connector.

2.

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

GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Turn ignition switch ON and OFF and check voltage between
ABS actuator and electric unit (control unit) harness connector
terminal and ground.

4.

Turn ignition switch OFF.

5.

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

ABS actuator and electric unit

(control unit)

—

Continuity

Connector

Terminal

E125

16, 47

Ground

Yes

AWFIA0016ZZ

ABS actuator and electric unit

(control unit)

—

Condition

Voltage

Connector

Terminal

E127

4

Ground

Ignition switch: ON

Battery voltage

Ignition switch: OFF

Approx. 0V

AWFIA0015ZZ

ABS actuator and electric unit

(control unit)

—

Continuity

Connector

Terminal

E127

16, 47

Ground

Yes

AWFIA0016ZZ

2009 Pathfinder

BRC-40

< COMPONENT DIAGNOSIS >

[TYPE 1]

C1109 POWER AND GROUND SYSTEM

Is the inspection result normal?

YES

>> Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunc-

tioning parts.

NO

>> Repair or replace malfunctioning components.

Special Repair Requirement

INFOID:0000000003937744

1.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

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

BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL

POSITION : Description"

.

>> GO TO 2

2.

CALIBRATION OF DECEL G SENSOR

Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to

BRC-13, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

2009 Pathfinder