Nissan X-Trail 32. Manual — part 1913

SN-108

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

SONAR SYSTEM SWITCH

YES

>> INSPECTION END

>> Repair sonar system switch. Refer to

SN-108, "Component Inspection"

Component Inspection

INFOID:0000000011009620

CHECK SONAR SYSTEM SWITCH (1)

Turn ignition switch OFF.

Remove sonar system switch. Refer to

SN-112, "Removal and Installation"

Check the continuity between sonar system switch terminals.

Is the inspection result normal?

YES

>> GO TO 2.

>> Replace sonar system switch. Refer to

SN-112, "Removal and Installation"

CHECK SONAR SYSTEM SWITCH (2)

Check the continuity between sonar system switch terminals as per the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace sonar system switch. Refer to

SN-112, "Removal and Installation"

Sonar system switch

Continuity

Terminals

(+)

(

−

)

Terminal

Existed

Sonar system switch

Condition

Continuity

Terminal

Sonar sys-
tem switch

Press

Existed

Except for
above

Not existed

SONAR SYSTEM SYMPTOMS

SN-109

< SYMPTOM DIAGNOSIS >

[WITHOUT PARK ASSIST]

SYMPTOM DIAGNOSIS

SONAR SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000010735611

Symptom

Check item

Diagnosis method

All sonar sensors do not acti-
vate.

—

Check sonar control unit power supply and ground
circuit.
Refer to

SN-106, "SONAR CONTROL UNIT : Di-

agnosis Procedure"

When there is no malfunction in those compo-
nents, replace the sonar control unit.
Refer to

SN-111, "Removal and Installation"

Front sonar sensors do not ac-
tivate.

Buzzer does not
beeps when indicating
“On” on “FRONT
BUZZER” screen of
the ACTIVE TEST.
Refer to

SN-19,

"CONSULT Function"

Buzzer is beeped.

Check front sensor ground circuit.
Refer to

SN-76, "Diagnosis Procedure"

Buzzer is not
beeped.

Check frontfront buzzer drive signal circuit.
Refer to

SN-100, "Diagnosis Procedure"

Rear sonar sensors do not ac-
tivate.

Buzzer does not
beeps when indicating
“On” on “REAR BUZZ-
ER” screen of the AC-
TIVE TEST.
Refer to

SN-19,

"CONSULT Function"

Buzzer is beeped.

Check rear sensor ground circuit.
Refer to

SN-43, "Diagnosis Procedure"

Buzzer is not
beeped.

Check front rear buzzer drive signal circuit.
Refer to

SN-100, "Diagnosis Procedure"

SN-110

< SYMPTOM DIAGNOSIS >

[WITHOUT PARK ASSIST]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

INFOID:0000000010735612

Symptom

Possible cause

Unstable object detection

• The vehicle is on a rough surface, such as stone or gravel.
• When used in poor weather conditions, such as heavy snow/rain or strong wind.
• When subjected to an ultrasonic noise generated from exhaust muffler or brakes.
• When left standing in the hot sun or in a cold climate.
• When the surface of the sensor is frozen or covered with snow/dirt/moisture.
• When a retrofitted xenon lamp, lighted license plate, or harness is close to the sensor body or sensor

harness.

• When subjected to loop coil noises generated from a vehicle detector placed at an intersection or

coin parking area.

Object undetectable

• Air-containing objects, such as cloth, cotton, glass wool, dust, and snow.
• Thin objects, such as rope, chain, and wire.
• Smooth-faced objects placed in a slanting direction.
• Fast-moving small animals.
• A corner of an angular object.
NOTE:
If the sensor detection part is scratched, obstacles cannot be detected.