Nissan X-Trail 32. Manual - part 181

BRC-190

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

POWER SUPPLY AND GROUND CIRCUIT

3.

Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-
nector terminal (25) and 30A fusible link (#G).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for battery power supply.

NO

>> Repair or replace error-detected parts.

9.

CHECK GROUND CIRCUIT

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace error-detected parts.

10.

CHECK TERMINAL

Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness
connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace error-detected parts.

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

13

Ground

Existed

38

VDC (ESP) OFF SWITCH

BRC-191

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

VDC (ESP) OFF SWITCH

Component Function Check

INFOID:0000000010723728

1.

CHECK VDC OFF SWITCH OPERATION

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

YES

>> INSPECTION END

NO

>> Proceed to 

BRC-191, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010723729

1.

CHECK VDC OFF SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the ABS actuator and electric unit (control unit) harness connector.

3.

Disconnect the VDC OFF switch harness connector.

4.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and VDC
OFF switch harness connector.

5.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the
ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK VDC OFF SWITCH GROUND CIRCUIT

Check the continuity between VDC OFF switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK VDC OFF SWITCH

Check the VDC OFF switch. Refer to 

BRC-192, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the VDC OFF switch. Refer to 

BRC-223, "Removal and Installation"

.

4.

CHECK VDC OFF SWITCH SIGNAL

With CONSULT

1.

Connect the ABS actuator and electric unit (control unit) harness connector.

2.

Connect the VDC OFF switch harness connector.

3.

Select “ABS”, “DATA MONITOR” and “OFF SW” according to this order. Check VDC OFF switch signal.

ABS actuator and electric unit (control unit)

VDC OFF switch

Continuity

Connector

Terminal

Connector

Terminal

E36

15

M5

1

Existed

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

15

Ground

Not existed

VDC OFF switch

—

Continuity

Connector

Terminal

M5

2

Ground

Existed

BRC-192

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

VDC (ESP) OFF SWITCH

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

CHECK TERMINAL

1.

Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-
ness connector.

2.

Check VDC OFF switch pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>>

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

• LHD models: Refer to 

BRC-217, "LHD : Removal and Installation"

.

• RHD models: Refer to 

BRC-220, "RHD : Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

Component Inspection

INFOID:0000000010723730

1.

CHECK VDC OFF SWITCH

1.

Turn the ignition switch OFF.

2.

Remove the VDC OFF switch. Refer to 

BRC-223, "Removal and Installation"

.

3.

Check continuity between terminals of VDC OFF switch connector.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the VDC OFF switch. Refer to 

BRC-223, "Removal and Installation"

.

Condition

DATA MONITOR

When VDC OFF switch is pressed and VDC OFF indicator 
lamp in combination meter is in ON status

On

When VDC OFF switch is pressed and VDC OFF indicator 
lamp in combination meter is in OFF status

Off

VDC OFF switch

Condition

Continuity

Terminal

1 – 2

When VDC OFF switch is pressed

Existed

When VDC OFF switch is not pressed

Not existed

HILL DESCENT CONTROL (DOWNHILL DRIVE SUPPORT) SWITCH

BRC-193

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

HILL DESCENT CONTROL (DOWNHILL DRIVE SUPPORT) SWITCH

Component Function Check

INFOID:0000000010723731

1.

CHECK HILL DESCENT CONTROL SSWITCH OPERATION

Check that hill descent control indicator lamp in combination meter turns ON/OFF/Blinking when hill descent
control switch is operated.
• ON: hill descent control switch is ON and the operational conditions are satisfied
• Blinking: hill descent control switch is ON and the operational conditions are not satisfied
• OFF: hill descent control switch is OFF

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

BRC-193, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010723732

1.

CHECK HILL DESCENT CONTROL SWITCH CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the ABS actuator and electric unit (control unit) harness connector.

3.

Disconnect the hill descent control switch harness connector.

4.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and hill
descent control switch harness connector.

5.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the
ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK HILL DESCENT CONTROL SWITCH GROUND CIRCUIT

Check the continuity between hill descent control switch harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK HILL DESCENT CONTROL SWITCH

Check the hill descent control switch. Refer to 

BRC-194, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the hill descent control switch. Refer to 

BRC-224, "Removal and Installation"

.

4.

CHECK HILL DESCENT CONTROL SWITCH SIGNAL

ABS actuator and electric unit (control unit)

hill descent control switch

Continuity

Connector

Terminal

Connector

Terminal

E36

9

M183

1

Existed

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

9

Ground

Existed

hill descent control switch

—

Continuity

Connector

Terminal

M183

3

Ground

Existed