Nissan Pathfinder (2008 year). Manual - part 97

BRC-82

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

BRAKE WARNING LAMP

BRAKE WARNING LAMP

Description

INFOID:0000000001690920

×

: 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:0000000001690921

1.

BRAKE WARNING LAMP OPERATION CHECK

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to diagnosis procedure. Refer to 

BRC-82, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001690922

1.

CHECK SELF-DIAGNOSIS

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

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Check items displayed by self-diagnosis.

2.

CHECK COMBINATION METER

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

MWI-23, "Diagnosis Descrip-

tion"

.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Replace combination meter. Refer to 

MWI-94, "Removal and Installation"

.

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.

×

VDC OFF INDICATOR LAMP

BRC-83

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

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BRC

N

O

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VDC OFF INDICATOR LAMP

Description

INFOID:0000000001690923

×

: ON –: OFF

Component Function Check

INFOID:0000000001690924

1.

VDC OFF INDICATOR 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-83, "Diagnosis Procedure"

.

2.

VDC OFF INDICATOR LAMP OPERATION CHECK 2

Check that the VDC OFF indicator lamp in the combination meter turns ON/OFF correctly when operating the
VDC OFF switch.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check VDC OFF switch. Refer to 

BRC-79, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001690925

1.

CHECK VDC OFF SWITCH

Check that the VDC OFF indicator lamp in the combination meter turns ON/OFF correctly when operating the
VDC OFF switch.
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Check VDC OFF switch. Refer to 

BRC-79, "Diagnosis Procedure"

.

2.

CHECK SELF-DIAGNOSIS

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

BRC-21, "CONSULT-III Function

(ABS)"

.

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-23, "Diagnosis Descrip-

tion"

.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Replace combination meter. Refer to 

MWI-94, "Removal and Installation"

.

Condition

VDC OFF indicator lamp

Ignition switch OFF

–

For 1 second after turning ON ignition switch

×

1 second later after turning ON ignition switch

–

VDC OFF switch turned ON. (VDC function is OFF.)

×

VDC/TCS function is malfunctioning.

×

ABS function is malfunctioning.

×

EBD function is malfunctioning.

×

BRC-84

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

SLIP INDICATOR LAMP

SLIP INDICATOR LAMP

Description

INFOID:0000000001690926

×

: ON –: OFF

Component Function Check

INFOID:0000000001690927

1.

CHECK SLIP INDICATOR LAMP OPERATION

Check that the lamp illuminates for approximately 1 second after the ignition switch is turned ON.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to diagnosis procedure. Refer to 

BRC-84, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001690928

1.

CHECK SELF-DIAGNOSIS

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

BRC-21, "CONSULT-III Function

(ABS)"

.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Check items displayed by self-diagnosis.

2.

CHECK COMBINATION METER

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

MWI-23, "Diagnosis Descrip-

tion"

.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Replace combination meter. Refer to 

MWI-94, "Removal and Installation"

.

Condition

SLIP indicator lamp

Ignition switch OFF

–

For 1 second after turning ON ignition switch

×

1 second later after turning ON ignition switch

–

VDC/TCS function is malfunctioning.

×

ABS function is malfunctioning.

×

EBD function is malfunctioning.

×

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-85

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

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BRC

N

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ECU DIAGNOSIS

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000001690929

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.

CONSULT-III MONITOR ITEM

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

FR LH SENSOR

Wheel speed

0 [km/h (MPH)]

Vehicle stopped

Nearly matches the speed meter display 
(

±

 10% or less)

Vehicle running 

(Note 1)

FR RH SENSOR

Wheel speed

0 [km/h (MPH)]

Vehicle stopped

Nearly matches the speed meter display 
(

±

 10% or less)

Vehicle running 

(Note 1)

RR LH SENSOR

Wheel speed

0 [km/h (MPH)]

Vehicle stopped

Nearly matches the speed meter display 
(

±

 10% or less)

Vehicle running 

(Note 1)

RR RH SENSOR

Wheel speed

0 [km/h (MPH)]

Vehicle stopped

Nearly matches the speed meter display 
(

±

 10% or less)

Vehicle running 

(Note 1)

STOP LAMP SW

Stop lamp switch signal status

When brake pedal is depressed

ON

When brake pedal is released

OFF

BATTERY VOLT

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

Ignition switch ON

10 – 16 V

GEAR

Gear position determined by TCM

1st gear 
2nd gear
3rd gear
4th gear
5th gear

1
2
3
4
5

 SLCT LVR POSI

A/T selector lever position

P position
R position
N position
D position

P
R
N
D

OFF SW

VDC OFF switch ON/OFF

VDC OFF switch ON
(When VDC OFF indicator lamp is ON)

ON

VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF)

OFF

YAW RATE SEN

Yaw rate detected by yaw rate/side/decel G 
sensor

When vehicle is stopped

Approx. 0 d/s

When vehicle turning

−

75 to 75 d/s

ACCEL POS SIG 

Throttle actuator opening/closing is dis-
played (linked with accelerator pedal)

Accelerator pedal not depressed (ignition 
switch is ON)

0 %

Accelerator pedal depressed (ignition 
switch is ON)

0 - 100 %

BRC-86

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

SIDE G-SENSOR

Transverse G detected by side G sensor

Vehicle stopped

Approx. 0 m/s

2

Vehicle turning right

Negative value 

(m/s

2

)

Vehicle turning left

Positive value

(m/s

2

)

STR ANGLE SIG

Steering angle detected by steering angle 
sensor

Straight-ahead

Approx. 0

°

Steering wheel turned

–720 to 720

°

 

PRESS SENSOR

Brake fluid pressure detected by front pres-
sure sensor

With ignition switch turned ON and brake 
pedal released

Approx. 0 bar

With ignition switch turned ON and brake 
pedal depressed

–40 to 300 bar

ENGINE SPEED

With engine running

With engine stopped

0 rpm

Engine running

Almost in accor-
dance with tachome-
ter display

FLUID LEV SW

Brake fluid level switch signal status

When brake fluid level switch ON

ON

When brake fluid level switch OFF 

OFF

FR RH IN SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

FR RH OUT SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

FR LH IN SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

FR LH OUT SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

RR RH IN SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-87

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

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G

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J

K

L

M

A

B

BRC

N

O

P

RR RH OUT SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

RR LH IN SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

RR LH OUT SOL

Operation status of each solenoid valve 

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

ON

When the actuator (solenoid valve) is not 
active and actuator relay is active (igni-
tion 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

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 3)

When ABS warning lamp is ON

ON

When ABS warning lamp is OFF

OFF

OFF LAMP

VDC OFF indicator lamp
(Note 3)

When VDC OFF indicator lamp is ON

ON

When VDC OFF indicator lamp is OFF

OFF

SLIP LAMP

SLIP indicator lamp
(Note 3)

When SLIP indicator lamp is ON

ON

When SLIP indicator lamp is OFF

OFF

4WD FAIL REQ
(Note 2)

Transfer control unit fail-safe signal

When transfer control unit is in fail-safe 
mode

ON

When transfer control unit is normal

OFF

BST OPER SIG

Not applied but displayed

—

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

TCS SIGNAL

TCS operation

TCS is active

ON

TCS is inactive

OFF

VDC SIGNAL

VDC operation

VDC is active

ON

VDC 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

Display content

Data monitor

Condition

Reference value in 

normal operation

BRC-88

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

TCS FAIL SIG

TCS fail-safe signal

In TCS fail-safe

ON

TCS is normal

OFF

VDC FAIL SIG

VDC fail-safe signal

In VDC fail-safe

ON

VDC is normal

OFF

CRANKING SIG

Crank operation

Crank is active

ON

Crank is inactive

OFF

CV1

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

ON

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

CV2

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

ON

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

SV1

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

ON

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

SV2

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

ON

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

OFF

DECEL G-SEN

Longitudinal acceleration detected by Decel 
G-Sensor

Vehicle stopped

Approx. 0 G

Vehicle running

-1.7 to 1.7 G

EBD WARN LAMP

EBD warning lamp
(Note 3)

When EBD warning lamp is ON

ON

When EBD warning lamp is OFF

OFF

N POSI SIG

PNP switch signal ON/OFF condition

A/T shift position = N position

ON

A/T shift position = other than N position

OFF

P POSI SIG

PNP switch signal ON/OFF condition

A/T shift position = P position

ON

A/T shift position = other than P position

OFF

R POSI SIG

PNP switch signal ON/OFF condition

A/T shift position = R position

ON

A/T shift position = other than R position

OFF

2WD/4WD

Drive axle

2WD model

2WD

4WD model

4WD

PRESS SEN2

Brake fluid pressure detected by rear pres-
sure sensor

With ignition switch turned ON and brake 
pedal released

Approx. 0 bar

With ignition switch turned ON and brake 
pedal depressed

–40 to 300 bar

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-89

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

NOTE:

• 1: Confirm tire pressure is normal.

• 2: Only 4WD models.

• 3: On and off timing for warning lamp and indicator lamp.

- ABS warning lamp: Refer to 

BRC-81, "Description"

.

- Brake warning lamp: Refer to 

BRC-82, "Description"

.

- VDC OFF indicator lamp: Refer to 

BRC-83, "Description"

.

- SLIP indicator lamp: Refer to 

BRC-84, "Description"

.

TERMINAL LAYOUT

DELTA S SEN

 Value detected by delta stroke sensor

When brake pedal is depressed

1.05 - 1.80 mm

When brake pedal is released

0.00 mm (+0.6/-0.4)

RELEASE SWITCH 
NO

 Active booster signal status

When brake pedal is depressed

ON

When brake pedal is released

OFF

RELEASE SWITCH 
NC

 Active booster signal status

When brake pedal is depressed

OFF

When brake pedal is released

ON

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

AWFIA0032ZZ