Nissan Qashqai (2007-2010). Manual — part 709

BRC-34

< COMPONENT DIAGNOSIS >

[ABS]

C1114 ACTUATOR RELAY SYSTEM

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning components.

3.

ABS POWER SUPPLY CHECK (UNDER LOAD CONDITIONS)

Use 12V lamp (normal rating 10 to 20W) connected between E34 terminals 1 and 3. With ignition switch ON
check bulb illuminates correctly.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Check both power supply and ground circuit.

4.

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

1.

Turn ignition switch OFF.

2.

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

3.

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

Is the inspection result normal?

YES

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

NO

>> Repair or replace malfunctioning components. (Check ABS each bolt for tightness and corrosion).

Component Inspection

INFOID:0000000000924993

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

>> Go to diagnosis procedure. Refer to

BRC-33, "Diagnosis Procedure"

.

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E34

1, 4

Ground

Existed

Operation

ON

OFF

MOTOR RELAY

ON

OFF

ACTUATOR RLY

NOTE

ON

ON

C1115 WHEEL SENSOR

BRC-35

< COMPONENT DIAGNOSIS >

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1115 WHEEL SENSOR

Description

INFOID:0000000000977433

When the sensor rotor rotates, the magnetic field changes. The sensor 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:0000000000924996

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:0000000001090896

CAUTION:

Do not check between wheel sensor terminals.

INSPECTION PROCEDURE

1.

CHECK SENSOR AND SENSOR ROTOR

• Check sensor rotor for damage.
• Check wheel sensor for damage, disconnection or looseness.

Are the sensor and sensor rotor normal?

YES

>> GO TO 2.

NO

>> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.

2.

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

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

3.

Disconnect malfunctioning wheel sensor connector.

4.

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

5.

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

BRC-17, "CONSULT-III Function

(ABS)"

.

Is any item indicated on the self-diagnosis display?

YES

>> GO TO 3.

NO

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

3.

CHECK WHEEL SENSOR HARNESS

1.

Turn ignition switch OFF.

2.

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

3.

Disconnect malfunctioning wheel sensor connector.

DTC

Display item

Malfunction detected condition

Possible cause

C1115

ABS SENSOR
[ABNORMAL SIGNAL]

Miss-match between the 4 wheel speed sensor signals.

• Harness or connector not a

possible cause.

• Other possible causes
- Tire radius (due to wrong size

or pressure) interference.

Self-diagnosis results

ABS SENSOR [ABNORMAL SIGNAL]

BRC-36

< COMPONENT DIAGNOSIS >

[ABS]

C1115 WHEEL SENSOR

4.

Check continuity between terminals. (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

Measurement terminal for ground circuit

5.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning components.

4.

CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between wheel sensor harness connector power supply terminal and ground.

Is the inspection result normal?

YES

>> Replace applicable wheel sensor.

NO

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

Component Inspection

INFOID:0000000001090897

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.

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E34

9

E39 (Front RH)

2

Existed

16

E22 (Front LH)

8

B41 (Rear RH)

6

B44 (Rear LH)

ABS actuator and electric unit (control unit)

Wheel sensor

Continuity

Connector

Terminal

Connector

Terminal

E34

10

E39 (Front RH)

1

Existed

5

E22 (Front LH)

19

B41 (Rear RH)

17

B44 (Rear LH)

ABS actuator and electric unit (control unit)

Continuity

Connector

Terminal

Connector

Terminal

E34

9, 10

E34

1, 4

Not existed

16, 5

8, 19

6, 17

Wheel sensor

—

Voltage

Connector

Terminal

E39 (Front RH)

2

Ground

8 V or more

E22 (Front LH)

B41 (Rear RH)

B44 (Rear LH)

C1115 WHEEL SENSOR

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

>> INSPECTION END

NO

>> Go to diagnosis procedure. Refer to

BRC-35, "Diagnosis Procedure"

.

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