Nissan Armada 2025-2026 Service and Repair Manual: Normal Operating Condition

Nissan Armada 2025-2026 Service and Repair Manual / Driver Information & Multimedia / Sonar System — Symptom Diagnosis / Normal Operating Condition

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.

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.

Symptom Table

Symptom Possible cause Reference page Malfunction is detected in only 1 sensor of display. Sonar sensor circuit Sonar sensor Perform CONSULT self-diagnosis. Perform detected DTC self-diagnosis. ...

Sonar System — Removal and Installation

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Other materials:

Diagnosis Procedure
CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER Check passenger side door mirror defogger. Refer to Component Function Check. Is the inspection result normal? YES>> GO TO 2. NO>> Repair or replace the malfunctioning parts. CONFIRM THE OPERATION Confirm the operation again. Is the inspection ...

Removal and Installation
WARNING: REMOVAL Shift the transmission to the neutral position, and then release the parking brake. Put matching mark on rear propeller shaft flange yoke and transmission companion flange. CAUTION: For matching mark, use paint. Never damage propeller shaft flange and transmission companion flang ...

Inspection
INSPECTION AFTER REMOVAL Appearance Propeller Shaft Runout Check propeller shaft runout at several points with a dial indicator. If runout exceeds specifications, replace propeller shaft assembly. Propeller shaft runout : Refer to Propeller Shaft Tube. Propeller shaft runout measuring point (Poi ...

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