Nissan X-Trail 32. Manual - part 151

BRC-70

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

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

CONSULT Function

INFOID:0000000010723645

APPLICATION ITEMS

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

*: The following diagnosis information is erased by erasing
• DTC
• Freeze frame data (FFD)

ECU IDENTIFICATION

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

SELF DIAGNOSTIC RESULT

Refer to 

BRC-84, "DTC Index"

.

When “CRNT” is displayed on self-diagnosis result

• The system is presently malfunctioning.

When “PAST” is displayed on self-diagnosis result

• System malfunction in the past is detected, but the system is presently normal.

Freeze frame data (FFD)

The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.

DATA MONITOR

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

×

: Applicable

Mode

Function description

ECU identification

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

Self Diagnostic Result

Self-diagnostic results and freeze frame data can be read and erased quickly.

*

Date Monitor

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

Active Test

Diagnostic Test Mode in which CONSULT drives some actuators apart from the ABS actuator and elec-
tric unit (control unit) and also shifts some parameters in a specified range.

Work support

Components can be quickly and accurately adjusted.

Re/programming, Configura-
tion

• Read and save the vehicle specification (TYPE ID).
• Write the vehicle specification (TYPE ID) when replacing ABS actuator and electric unit (control unit).

Item name

Display Item

IGN counter
(0 – 39)

The number of times that ignition switch is turned ON after the DTC is detected is displayed.
• When “0” is displayed: It indicates that the system is presently malfunctioning.
• When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is pres-

ently normal.
NOTE:
Each time when ignition switch is turned OFF to ON, numerical number increases in 1

→

2

→

3...38

→

39. When 

the operation number of times exceeds 39, the number do not increase and “39” is displayed until self diagnosis 
is erased.

Item (Unit)

Monitor item selection

Note

INPUT SIGNALS

MAIN ITEMS

FR LH SENSOR
(km/h)

×

×

Wheel speed calculated by front LH wheel sensor is dis-
played.

FR RH SENSOR
(km/h)

×

×

Wheel speed calculated by front RH wheel sensor is dis-
played.

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-71

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

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BRC

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RR LH SENSOR
(km/h)

×

×

Wheel speed calculated by rear LH wheel sensor is dis-
played.

RR RH SENSOR
(km/h)

×

×

Wheel speed calculated by rear RH wheel sensor is dis-
played.

DECEL G-SEN
(G)

×

×

Decel G detected by decel G sensor is displayed.

FR RH IN SOL

*1

(On/Off)

×

Operation status of front RH wheel ABS IN valve is dis-
played.

FR RH OUT SOL

*1

(On/Off)

×

Operation status of front RH wheel ABS OUT valve is dis-
played.

FR LH IN SOL

*1

(On/Off)

×

Operation status of front LH wheel ABS IN valve is dis-
played.

FR LH OUT SOL

*1

(On/Off)

×

Operation status of front LH wheel ABS OUT valve is dis-
played.

RR RH IN SOL

*1

(On/Off)

×

Operation status of rear RH wheel ABS IN valve is dis-
played.

RR RH OUT SOL

*1

(On/Off)

×

Operation status of rear RH wheel ABS OUT valve is dis-
played.

RR LH IN SOL

*1

(On/Off)

×

Operation status of rear LH wheel ABS IN valve is dis-
played.

RR LH OUT SOL

*1

(On/Off)

×

Operation status of rear LH wheel ABS OUT valve is dis-
played.

EBD WARN LAMP
(On/Off)

Brake warning lamp ON/OFF status is displayed.

*2

STOP LAMP SW
(On/Off)

×

×

Stop lamp switch signal input status is displayed.

MOTOR RELAY
(On/Off)

×

ABS motor and motor relay status is displayed.

ACTUATOR RLY

*1

(On/Off)

×

ABS actuator relay status is displayed.

ABS WARN LAMP
(On/Off)

×

ABS warning lamp ON/OFF status is displayed.

*2

OFF LAMP
(On/Off)

×

VDC OFF indicator lamp ON/OFF status is displayed.

*2

SLIP/VDC LAMP
(On/Off)

×

VDC warning lamp ON/OFF status is displayed.

*2

BATTERY VOLT
(V)

×

×

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

GEAR

*3

×

×

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

SELECT LVR POSI

*3

×

×

Current shift position judged from shift position signal is dis-
played.

YAW RATE SEN
(d/s)

×

×

Yaw rate detected by yaw rate/side/decel G sensor is dis-
played.

R POSI SIG

*3

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

4WD MODE MON
(2WD/4WD)

×

Drive status is displayed.

N POSI SIG

*3

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

Item (Unit)

Monitor item selection

Note

INPUT SIGNALS

MAIN ITEMS

BRC-72

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

P POSI SIG

*3

P range signal input status judged from P range signal is dis-
played.

ACCEL POS SIG
(%)

×

Displays the Accelerator pedal position.

SIDE G-SENSOR
(m/s2)

×

Side G detected by yaw rate/side/decel G sensor is dis-
played.

STR ANGLE SIG
(deg)

×

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

PRESS SENSOR
(bar)

×

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

EBD SIG
(On/Off)

Operation status of EBD function is displayed.

ABS SIG
(On/Off)

Operation status of ABS function is displayed.

TCS SIG
(On/Off)

Operation status of TCS function is displayed.

VDC SIG
(On/Off)

Operation status of VDC function is displayed.

EBD FAIL SIG
(On/Off)

Fail-safe signal status of EBD function is displayed.

ABS FAIL SIG
(On/Off)

Fail-safe signal status of ABS function is displayed.

TCS FAIL SIG
(On/Off)

Fail-safe signal status of TCS function is displayed.

VDC FAIL SIG
(On/Off)

Fail-safe signal status of VDC function is displayed.

CRANKING SIG
(On/Off)

Cranking status is displayed.

FLUID LEV SW
(On/Off)

×

Brake fluid level signal input status is displayed.

PARK BRAKE SW
(On/Off)

Parking brake switch signal input status is displayed.

USV[FL-RR]

*1

(On/Off)

Operation status of cut valve 1 is displayed.

USV[FR-RL]

*1

(On/Off)

Operation status of cut valve 2 is displayed.

HSV[FL-RR]

*1

(On/Off)

Operation status of suction valve 1 is displayed.

HSV[FR-RL]

*1

(On/Off)

Operation status of suction valve 2 is displayed.

V/ROUTPUT

*1

(On/Off)

ABS actuator relay status is displayed.

M/R OUTPUT
(On/Off)

ABS motor and motor relay status is displayed.

ENGINE RPM

Engine speed status is displayed.

STP ON RLY
(On/Off)

Operation status of stop lamp ON relay is displayed.

DDS SW

*4

(On/Off)

Operation status of hill descent control switch is displayed.

Item (Unit)

Monitor item selection

Note

INPUT SIGNALS

MAIN ITEMS

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-73

< SYSTEM DESCRIPTION >

[WITH VDC (ESP)]

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BRC

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*1: Display occasionally changes On/Off for a moment after ignition switch is turned ON. This is operation for
checking purposes and is not a malfunction.
*2: Refer to 

BRC-67, "WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp"

 for ON/OFF con-

ditions of each warning lamp and indicator lamp.
*3: CVT models
*4: “DDS” means “hill descent control” or “downhill drive support”.
*5: “USS” means “hill start assist” or “Uphill Start Support”.
*6: M/T models

ACTIVE TEST

The active test is used to determine and identify details of a malfunction, based on self-diagnosis test results
and data obtained in the DATA MONITOR. In response to instructions from CONSULT, instead of those from
ABS actuator and electric unit (control unit) on the vehicle, a drive signal is sent to the actuator to check its
operation.

CAUTION:

• Never perform ACTIVE TEST while driving the vehicle.
• Always bleed air from brake system before active test.
• Never perform active test when system is malfunctioning.
NOTE:
• When active test is performed while depressing the pedal, the pedal depressing stroke may change. This is

not a malfunction.

• “TEST IS STOPPED” is displayed approx. 10 seconds after operation start.
• When performing active test again after “TEST IS STOPPED” is displayed, select “BACK”.
• ABS warning lamp, brake warning lamp and VDC warning lamp may turn ON during active test. This is not a

malfunction.

ABS In Valve and ABS Out Valve

When “Up”, “Keep” or “Down” is selected on display screen, the following items are displayed when system is
normal.

DDS SIG

*4

(On/Off)

Operation status of advanced hill descent control function is 
displayed.

USS SIG

*5

(On/Off)

Operation status of hill start assist function is displayed.

1ST GEAR SIG

*6

(On/Off)

1st range status is displayed.

OFF SW
(On/Off)

×

×

VDC OFF switch status is displayed.

Item (Unit)

Monitor item selection

Note

INPUT SIGNALS

MAIN ITEMS

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

*

USV[FL-RR]

Off

Off

Off

USV[FR-RL]

Off

Off

Off

HSV[FL-RR]

Off

Off

Off

HSV[FR-RL]

Off

Off

Off

FR LH SOL

FR LH IN SOL

Off

Off

On

FR LH OUT SOL

Off

Off

On

*

USV[FL-RR]

Off

Off

Off

USV[FR-RL]

Off

Off

Off

HSV[FL-RR]

Off

Off

Off

HSV[FR-RL]

Off

Off

Off