Nissan Qashqai (2007-2010). Manual — part 713

BRC-50

< COMPONENT DIAGNOSIS >

[ABS]

BRAKE WARNING LAMP

BRAKE WARNING LAMP

Description

INFOID:0000000000925063

×

: ON –: OFF

NOTE:

• 1: Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid level switch operation

(when brake fluid is insufficient).

• 2: After starting engine, brake warning lamp is turned off.

Component Function Check

INFOID:0000000000925064

1.

BRAKE WARNING LAMP OPERATION CHECK 1

Check that the lamp illuminates for approximately 1 second after the ignition switch is turned ON.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Go to diagnosis procedure. Refer to

BRC-50, "Diagnosis Procedure"

.

2.

BRAKE WARNING LAMP OPERATION CHECK 2

Check that the brake warning lamp in the combination meter turns ON/OFF correctly when operating the park-
ing brake pedal.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check parking brake switch. Refer to

BRC-47, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000925065

1.

CHECK PARKING BRAKE SWITCH

Check that the brake warning lamp in the combination meter turns ON/OFF correctly when operating the park-
ing brake pedal.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check parking brake switch. Refer to

BRC-47, "Diagnosis Procedure"

.

2.

CHECK SELF-DIAGNOSIS

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check items displayed by self-diagnosis.

3.

CHECK COMBINATION METER

Check if the indication and operation of combination meter are normal. Refer to

MWI-21, "Diagnosis Descrip-

tion"

.

Is the inspection result normal?

YES

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

NO

>> Repair or replace combination meter.

Condition

Brake warning lamp

NOTE 1

Ignition switch OFF

–

For 1 second after turning ON ignition switch

×

NOTE 2

1 second later after turning ON ignition switch

×

NOTE 2

EBD function is malfunctioning.

×

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-51

< ECU DIAGNOSIS >

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

ECU DIAGNOSIS

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000000925072

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short-circuited.

Monitor item

Condition

Value/Status

FR LH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running

NOTE 1

Nearly matches the
speed meter display
(

±

10% or less)

FR RH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running

NOTE 1

Nearly matches the
speed meter display
(

±

10% or less)

RR LH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running

NOTE 1

Nearly matches the
speed meter display
(

±

10% or less)

RR RH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running

NOTE 1

Nearly matches the
speed meter display
(

±

10% or less)

STOP LAMP SW

Stop lamp switch signal status

When brake pedal is depressed

On

When brake pedal is not depressed

Off

BATTERY VOLT

Battery voltage supplied to the ABS actuator
and electric unit (control unit)

Ignition switch ON

10 – 16 V

DECEL G SENSOR

NOTE 2

Decel G detected by decel G sensor

Vehicle on level surface or on slope

According to gradi-
ent of slope

FR RH IN SOL

Operation status of front RH inlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

FR RH OUT SOL

Operation status of front RH outlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

FR LH IN SOL

Operation status of front LH inlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

BRC-52

< ECU DIAGNOSIS >

[ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

NOTE:

• 1: Confirm tire pressure is normal.

• 2: Only 4WD models.

• 3: Every 20 seconds momentary switch to OFF.

• 4: On and off timing for warning lamp and indicator lamp. Refer to

BRC-49, "Description"

.

Wiring Diagram - BRAKE CONTROL SYSTEM -

INFOID:0000000000925073

FR LH OUT SOL

Operation status of front LH outlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

RR RH IN SOL

Operation status of rear RH inlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

RR RH OUT SOL

Operation status of rear RH outlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

RR LH IN SOL

Operation status of rear LH inlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

RR LH OUT SOL

Operation status of rear LH outlet solenoid
valve

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actu-
ator relay is inactive (in fail-safe mode)

On

When the actuator (solenoid valve) is
not active and actuator relay is active
(ignition switch ON)

Off

MOTOR RELAY

Motor and motor relay operation

When the motor relay and motor are op-
erating

On

When the motor relay and motor are not
operating

Off

ACTUATOR RLY

NOTE 3

Actuator relay operation

When the actuator relay is operating

On

When the actuator relay is not operating

Off

ABS WARN LAMP

ABS warning lamp

NOTE 4

When ABS warning lamp is ON

On

When ABS warning lamp is OFF

Off

EBD SIGNAL

EBD operation

EBD is active

On

EBD is inactive

Off

ABS SIGNAL

ABS operation

ABS is active

On

ABS is inactive

Off

EBD FAIL SIG

EBD fail-safe signal

In EBD fail-safe

On

EBD is normal

Off

ABS FAIL SIG

ABS fail-safe signal

In ABS fail-safe

On

ABS is normal

Off

Monitor item

Condition

Value/Status

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-53

< ECU DIAGNOSIS >

[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

JCFWA0031GB