Nissan Pathfinder. Manual - part 244

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-35

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

SLIP/VDC LAMP
(On/Off)

×

VDC warning lamp ON/OFF status is displayed.

(Note 1)

BATTERY VOLT
(V)

×

×

Voltage supplied to ABS actuator and electric unit (control 
unit) is displayed.

GEAR

×

×

Current gear position judged from current gear position sig-
nal is displayed.

SLCT LVR POSI

×

×

Current gear position judged from current gear position sig-
nal is displayed.

ENGINE SPEED
(tr/min)

×

×

Engine speed status is displayed.

YAW RATE SEN
(d/s)

×

×

Yaw rate detected by yaw rate sensor is displayed.

R POSI SIG
(On/Off)

R range signal input status judged from R range signal is 
displayed.

4WD MODE MON

(Note 2)

(AUTO/2WD/LOCK)

×

×

4WD control status is displayed.

N POSI SIG
(On/Off)

N range signal input status judged from N range signal is 
displayed.

CV1
(On/Off)

Cut valve 1 operation status is displayed.

CV2
(On/Off)

Cut valve 2 operation status is displayed.

ACCEL POS SIG
 (%) 

×

Displays the Accelerator pedal position.

SIDE G -SENSOR
(m/s

2

)

×

Side G detected by side G sensor is displayed.

STR ANGLE SIG
 (

°) 

×

Steering angle detected by steering angle sensor is dis-
played.

PRESS SENSOR
(bar)

×

Brake fluid pressure detected by pressure sensor is dis-
played.

EBD SIGNAL
(On/Off)

EBD operation status is displayed.

ABS SIGNAL
(On/Off)

ABS operation status is displayed.

TCS SIGNAL
(On/Off)

TCS operation status is displayed.

VDC SIGNAL
(On/Off)

VDC operation status is displayed.

EBD FAIL SIG
(On/Off)

EBD fail-safe signal status is displayed.

ABS FAIL SIG
(On/Off)

ABS fail-safe signal status is displayed.

TCS FAIL SIG
(On/Off)

TCS fail-safe signal status is displayed.

VDC FAIL SIG
(On/Off)

VDC fail-safe signal status is displayed.

CRANKING SIG
(On/Off)

Cranking status is displayed.

FLUID LEV SW
(On/Off)

×

Brake fluid level signal input status via CAN communication 
is displayed.

Item (Unit)

Monitor item selection

Note

ECU INPUT SIG-

NALS

MAIN SIGNALS

BRC-36

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

Note 1: Refer to 

BRC-11, "System Description"

 for ON/OFF conditions of each warning lamp and indicator

lamp.

Note 2: Models with 4WD System.

Note 3: USS means ‘‘hill start assist.’’

WORK SUPPORT

PARK BRAKE SW
(On/Off)

×

Parking brake switch signal input status via CAN communi-
cation is displayed.

USS SIG

(Note 3)

(On/Off)

hill start assist operation status is displayed.

Item (Unit)

Monitor item selection

Note

ECU INPUT SIG-

NALS

MAIN SIGNALS

Conditions

Description

ST ANGLE SENSOR ADJUSTMENT

Perform neutral position adjustment of steering angle sensor.

DECEL G SEN CALIBRATION

Perform decel G sensor calibration.

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-37

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

ECU DIAGNOSIS INFORMATION

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000009177258

CONSULT DATA MONITOR STANDARD VALUE

Monitor item

Condition

Reference values in normal operation

FR LH SENSOR

Vehicle stopped

0.00 km/h (MPH)

When driving

(Note 1)

Nearly matches the speedometer dis-
play (within 

±10%)

FR RH SENSOR

Vehicle stopped

0.00 km/h (MPH)

When driving

(Note 1)

Nearly matches the speedometer dis-
play (within 

±10%)

RR LH SENSOR

Vehicle stopped

0.00 km/h (MPH)

When driving

(Note 1)

Nearly matches the speedometer dis-
play (within 

±10%)

RR RH SENSOR

Vehicle stopped

0.00 km/h (MPH)

When driving

(Note 1)

Nearly matches the speedometer dis-
play (within 

±10%)

DECEL G-SEN

When stopped

Approx. 0 m/s

2

During acceleration

Positive value

During deceleration

Negative value

FR RH IN SOL

Active

On

Not activated

Off

FR RH OUT SOL

Active

On

Not activated

Off

FR LH IN SOL

Active

On

Not activated

Off

FR LH OUT SOL

Active

On

Not activated

Off

RR RH IN SOL

Active

On

Not activated

Off

RR RH OUT SOL

Active

On

Not activated

Off

RR LH IN SOL

Active

On

Not activated

Off

RR LH OUT SOL

Active

On

Not activated

Off

EBD WARN LAMP

When brake warning lamp is ON

(Note 2)

On

When brake warning lamp is OFF

(Note 2)

Off

STOP LAMP SW

Brake pedal depressed

On

Brake pedal not depressed

Off

MOTOR RELAY

Active

On

Not activated

Off

ACTUATOR RLY

Active

On

When not operating (in fail-safe mode)

Off

BRC-38

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

ABS WARN LAMP

When ABS warning lamp is ON

(Note 2)

On

When ABS warning lamp is OFF

(Note 2)

Off

OFF LAMP

When VDC OFF indicator lamp is ON

(Note 2)

On

When VDC OFF indicator lamp is OFF

(Note 2)

Off

OFF SW

When VDC OFF switch is ON

On

When VDC OFF switch is OFF

Off

SLIP/VDC LAMP

When VDC warning lamp is ON

(Note 2)

On

When VDC warning lamp is OFF

(Note 2)

Off

BATTERY VOLT

Ignition switch ON

10 – 16 V

GEAR

Driving

1 – 7
Depending on shift status

SLCT LVR POSI

Vehicle stopped

N/P
Depending on shift status

ENGINE SPEED

Engine stopped

0 tr/min

Engine running

Almost same reading as tachometer

YAW RATE SEN

Vehicle stopped

Approx. 0 d/s

Turning right

Negative value

Turning left

Positive value

R POSI SIG

When selector lever is in the R position

On

When selector lever is in the other position than R

Off

4WD MODE MON

(Note 3)

When 4WD shift switch is in AUTO position

AUTO

When 4WD shift switch is in 4H position

LOCK

When 4WD shift switch is in 2WD position

2WD

N POSI SIG

When selector lever is in the N position

On

When selector lever is in the other position than N

Off

CV1

Active

On

Not activated

Off

CV2

Active

On

Not activated

Off

ACCEL POS SIG

Never depress accelerator pedal
(with ignition switch ON)

0%

Depress accelerator pedal
(with ignition switch ON)

0 – 100%

SIDE G-SENSOR

Vehicle stopped

Approx. 0 m/s

2

Right turn

Negative value

Left turn

Positive value

STR ANGLE SIG

When driving straight

0

±2.5°

When steering wheel is steered to LH by 90

°

Approx. +90

°

When steering wheel is steered to RH by 90

°

Approx. –90

°

PRESS SENSOR

Brake pedal not depressed

Approx. 0 bar

Brake pedal depressed

 (

−40) – (+300 bar)

EBD SIGNAL

EBD activated

On

EBD not activated

Off

ABS SIGNAL

ABS is activated

On

ABS is not activated

Off

Monitor item

Condition

Reference values in normal operation