Nissan Murano. Manual - part 218

BRC-28

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]

CONSULT Function

INFOID:0000000009718235

FUNCTION

CONSULT can display each diagnostic item using the diagnostic test modes as following.

WORK SUPPORT

SELF DIAGNOSTIC RESULT

Operation Procedure

Before performing the self-diagnosis for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/
h (19 MPH) or more for approximately 1 minute.

Display Item List

Refer to 

BRC-111, "DTC No. Index"

.

How to Erase Self-diagnosis Results

After erasing DTC memory for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/h (19
MPH) or more for approximately 1 minute as the final inspection, and make sure that the ABS warning lamp,
VDC warning lamp and brake warning lamp turn OFF.

CAUTION:

If memory cannot be erased, perform applicable diagnosis.
NOTE:
• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp,

VDC warning lamp and brake warning lamp will not turn OFF even when the system is normal unless the
vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1 minute.

• 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).

• VDC OFF switch should not stay “ON” position.

DATA MONITOR

Display Item List

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

Diagnostic test mode

Function

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the indica-
tions on CONSULT.

Self diagnostic result

Self-diagnostic results can be read and erased quickly.

Data monitor

Input/Output data in the ABS actuator and electric unit (control unit) can be read.

Active test

CONSULT drives some actuators apart from the ABS actuator and electric unit (control unit) and also shifts 
some parameters in a specified range.

ECU identification

ABS actuator and electric unit (control unit) part number can be read.

Item

Description

ST ANGLE SENSOR ADJUSTMENT

Adjusts the neutral position of the steering angle sensor.

DECEL G SEN CALIBRATION (only AWD models)

Calibrates decel G sensor.

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-29

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

×

: Applicable 

: Optional item

Monitor item (Unit)

SELECT MONITOR ITEM

Remarks

ECU INPUT 

SIGNALS

MAIN SIGNALS

FR LH SENSOR
[km/h (MPH)]

×

×

Wheel speed

FR RH SENSOR
[km/h (MPH)]

×

×

RR LH SENSOR
[km/h (MPH)]

×

×

RR RH SENSOR
[km/h (MPH)]

×

×

STOP LAMP SW
(On/Off)

×

×

Stop lamp switch signal status

BATTERY VOLT
(V)

×

×

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

GEAR

×

×

Gear position determined by TCM

R POSI SIG
(On/Off)

Shift position judged by shift position (R) signal

N POSI SIG
(On/Off)

Shift position judged by shift position (N) signal

P POSI SIG
(On/Off)

Shift position judged by shift position (P) signal

SLCT LVR POSI

×

×

Shift position judged by shift position signal

OFF SW
(On/Off)

×

×

VDC OFF switch

YAW RATE SEN
(d/s)

×

×

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

DECEL G-SEN
(G)

×

×

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

ACCEL POS SIG
(%)

×

Throttle actuator opening/closing is displayed (Linked with accelera-
tor pedal)

SIDE G-SENSOR

(m/s

2

)

×

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

STR ANGLE SIG
(

°

)

×

Steering angle detected by steering angle sensor

ENGINE RPM
[tr/min (rpm)]

×

Engine speed

FLUID LEV SW
(On/Off)

×

Brake fluid level switch

PRESS SENSOR
(bar)

×

Brake fluid pressure detected by pressure sensor

FR RH IN SOL
(On/Off)

×

Operation status of front RH ABS IN valve

FR RH OUT SOL
(On/Off)

×

Operation status of front RH ABS OUT valve

FR LH IN SOL
(On/Off)

×

Operation status of front LH ABS IN valve

FR LH OUT SOL
(On/Off)

×

Operation status of front LH ABS OUT valve

RR RH IN SOL
(On/Off)

×

Operation status of rear RH ABS IN valve

RR RH OUT SOL
(On/Off)

×

Operation status of rear RH ABS OUT valve

BRC-30

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

NOTE:

A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is a oper-
ation for checking.

ACTIVE TEST MODE

CAUTION:

RR LH IN SOL
(On/Off)

×

Operation status of rear LH ABS IN valve

RR LH OUT SOL
(On/Off)

×

Operation status of rear LH ABS OUT valve

MOTOR RELAY
(On/Off)

×

Motor and motor relay operation

ACTUATOR RLY
(On/Off)

×

Actuator relay operation

ABS WARN LAMP
(On/Off)

×

ABS warning lamp

OFF LAMP
(On/Off)

×

VDC OFF indicator lamp

SLIP/VDC LAMP
(On/Off)

×

VDC warning lamp

CV1
(On/Off)

Cut valve 1 (CV1) monitor

CV2
(On/Off)

Cut valve 2 (CV2) monitor

SV1
(On/Off)

Suction valve 1 (SV1) monitor

SV2
(On/Off)

Suction valve 2 (SV2) monitor

EBD SIGNAL
(On/Off)

EBD operation

ABS SIGNAL
(On/Off)

ABS operation

TCS SIGNAL
(On/Off)

TCS operation

VDC SIGNAL
(On/Off)

VDC operation

EBD FAIL SIG
(On/Off)

EBD fail-safe status

ABS FAIL SIG
(On/Off)

ABS fail-safe status

TCS FAIL SIG
(On/Off)

TCS fail-safe status

VDC FAIL SIG
(On/Off)

VDC fail-safe status

EBD WARN LAMP
(On/Off)

Brake warning lamp

CRANKING SIG
(On/Off)

Crank operation

4WD FAIL REQ
(On/Off)

AWD fail-safe signal status

2WD/4WD
(2WD/4WD)

Distinguish 2WD and AWD

Monitor item (Unit)

SELECT MONITOR ITEM

Remarks

ECU INPUT 

SIGNALS

MAIN SIGNALS

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-31

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

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BRC

N

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P

• Never perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be started when ABS warning lamp, VDC warning lamp and brake warning

lamp is ON.

• ABS warning lamp, VDC warning lamp and brake warning lamp are ON during active test.
NOTE:
• When active test is performed while depressing the pedal, the pedal depression amount will change. This is

normal.

• “TEST IS STOPPED” in “ABS” with CONSULT is displayed 10 seconds after operation start.
• After “TEST IS STOPPED” in “ABS” with CONSULT is displayed, to perform test again.

Test Item

ABS IN Valve and ABS OUT valve

• Select “Up”, “Keep” and “Down” of “ACTIVE TEST” in “ABS” with CONSULT. Then use screen monitor to

check that each valve operates as shown in the table below.

*: On for 1 to 2 seconds after the select, and then Off.

NOTE:

A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is a
operation for checking.

ABS IN Valve (ACT) and ABS OUT valve (ACT)

• Select “Up”, “ACT UP” and “ACT KEEP” of “ACTIVE TEST” in “ABS” with CONSULT. Then use screen mon-

itor to check that each valve operates as shown in the table below.

Test item

Display item

Display

Up

Keep

Down

FR RH SOL

FR RH IN SOL

Off

On

On

FR RH OUT SOL

Off

Off

On*

FR LH SOL

FR LH IN SOL

Off

On

On

FR LH OUT SOL

Off

Off

On*

RR RH SOL

RR RH IN SOL

Off

On

On

RR RH OUT SOL

Off

Off

On*

RR LH SOL

RR LH IN SOL

Off

On

On

RR LH OUT SOL

Off

Off

On*

Test item

Display item

Display

Up

ACT UP

ACT KEEP

FR RH ABS SOLENOID 
(ACT)

FR RH IN SOL

Off

Off

Off

FR RH OUT SOL

Off

Off

Off

CV1

Off

On

On

SV1

Off

On*

Off

FR LH ABS SOLENOID 
(ACT)

FR LH IN SOL

Off

Off

Off

FR LH OUT SOL

Off

Off

Off

CV2

Off

On

On

SV2

Off

On*

Off

RR RH ABS SOLENOID 
(ACT)

RR RH IN SOL

Off

Off

Off

RR RH OUT SOL

Off

Off

Off

CV2

Off

On

On

SV2

Off

On*

Off