Nissan Pathfinder: Sonar System - Symptom Diagnosis

• Sonar sensor circuit

• Sonar sensor

Check sonar control unit power supply and ground circuit.

Refer to Diagnosis Procedure.

When there is no malfunction in those components, replace the sonar control unit.

• The Nissan Pathfinder 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 Nissan Pathfinder vehicle detector placed at an intersection or coin parking area.

• 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.