Nissan Frontier. Manual - part 127

BRC-36

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

C1101, C1102, C1103, C1104 WHEEL SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace as necessary.

3.

HARNESS AND CONNECTOR INSPECTION

1. Disconnect ABS actuator and electric unit (control unit) connector E127 and wheel sensor connector of

suspect wheel.

2. Check harness, connectors and terminals for corrosion, deformation, disconnection, looseness or dam-

age.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace as necessary.

4.

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 5.

NO

>> Replace the wheel sensor. Refer to 

BRC-113, "Removal and Installation"

.

5.

CHECK WIRING HARNESS FOR SHORT TO VOLTAGE

1. Turn ignition switch ON.

2. Check voltage between wheel sensor harness connector terminals of suspect wheel and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair the circuit.

6.

CHECK WIRING HARNESS FOR SHORT TO GROUND

1. Turn ignition switch OFF.

2. Check continuity between wheel sensor harness connector terminals of suspect wheel and ground.

Wheel Sensor

Ground

Voltage

Wheel

Connector

Terminal

Front LH

E18

1

—

0V

2

Front RH

E117

1

2

Rear LH

C11

1

2

Rear RH

C10

1

2

Wheel Sensor

Ground

Continuity

Wheel

Connector

Terminal

C1101, C1102, C1103, C1104 WHEEL SENSOR

BRC-37

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

C

D

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A

B

BRC

N

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P

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair the circuit.

7.

CHECK WIRING HARNESS FOR SHORT BETWEEN CIRCUITS

Check continuity between wheel sensor harness connector terminals of suspect wheel.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair the circuit.

8.

CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector E127 and wheel sensor con-

nector of wheel with DTC.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair the circuit.

9.

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

1. Turn ignition switch ON.

2. Check voltage between ABS actuator and electric unit (control unit) harness connector E127 terminal and

ground.

Front LH

E18

1

—

No

2

Front RH

E117

1

2

Rear LH

C11

1

2

Rear RH

C10

1

2

Wheel Sensor

(+)

(-)

Continuity

Wheel

Connector

Terminal

Terminal

Front LH

E18

1

2

No

Front RH

E117

Rear LH

C11

Rear RH

C10

Wheel sensor

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

Yes

Front LH

E127

45

E18

1

46

2

Front RH

34

E117

1

33

2

Rear LH

36

C11

1

37

2

Rear RH

43

C10

1

42

2

BRC-38

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

C1101, C1102, C1103, C1104 WHEEL SENSOR

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Check the following:

• 10A fuse No. 50 located in the IPDM E/R

• Harness between ABS actuator and electric unit (control unit) and IPDM E/R

10.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between ABS actuator and electric unit (control unit) connector E127 terminals and

ground.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace malfunctioning components.

11.

CHECK WHEEL SENSOR INPUT VOLTAGE

1. Connect ABS actuator and electric unit (control unit) connector E127.

2. Turn ignition switch ON.

3. Check voltage between suspect wheel sensor harness connector terminals.

Is the inspection result normal?

YES

>> Replace wheel sensor. Refer to 

BRC-113, "Removal and Installation"

. Then, GO TO 12.

NO

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

BRC-115, "Removal and Installa-

tion"

.

12.

CONFIRM REPAIR

 With CONSULT

1. Clear all DTCs.

2. Perform DTC confirmation procedure. Refer to 

BRC-35, "DTC Logic"

.

Does DTC C1101, C1102, C1103 or C1104 reset?

YES

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

BRC-115, "Removal and Installa-

tion"

.

NO

>> Inspection End.

Component Inspection

INFOID:0000000009479257

1.

CHECK DATA MONITOR

ABS actuator and electric unit 

(control unit)

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

E127

8

—

Ignition switch ON

Battery voltage

Ignition switch OFF

0V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E127

16

Ground

Yes

47

Wheel Sensor

(+)

(-)

Voltage

(Approx.)

Wheel

Connector

Terminal

Terminal

Front LH

E18

1

2

Battery voltage

Front RH

E117

Rear LH

C11

Rear RH

C10

C1101, C1102, C1103, C1104 WHEEL SENSOR

BRC-39

< DTC/CIRCUIT DIAGNOSIS >

[TYPE 1]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

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:0000000009479258

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