Infiniti EX35. Manual - part 1337

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SONAR SYSTEM SYMPTOMS

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< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

SONAR SYSTEM SYMPTOMS

Symptom Table

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Symptom

Check item

Diagnosis method

All sonar sensors do not activate.

“SONAR” is indicated on “SELECT SYSTEM” 
screen after connection CONSULT-III.

• Perform the self-diagnosis of CONSULT-III. 

Refer to 

SN-8, "CONSULT-III Function (SO-

NAR)"

.

• Check P range signal if the self-diagnosis 

does not detect any error. Refer to 

SN-24, 

"Diagnosis Procedure"

.

“SONAR” is not indicated on “SELECT SYS-
TEM” screen after connection CONSULT-III.

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

SN-23, "SONAR CON-

TROL UNIT : Diagnosis Procedure"

.

Corner sensor (RL, RR) and cen-
ter sensor (RL, RR) does not acti-
vate.

Buzzer beeps when indicating “REAR ON” on 
“BUZZER” screen of the ACTIVE TEST.

Check reverse signal for sonar control unit. Re-
fer to 

SN-25, "Diagnosis Procedure"

.

Buzzer does not beeps when indicating “REAR 
ON” on “BUZZER” screen of the ACTIVE TEST.

Check buzzer signal for sonar control unit. Re-
fer to 

SN-26, "Diagnosis Procedure"

.

Any sonar sensor does not acti-
vate.

—

Perform the self-diagnosis of CONSULT-III. 
Refer to 

SN-8, "CONSULT-III Function (SO-

NAR)"

.

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< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

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PREPARATION

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< PREPARATION >

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PREPARATION

PREPARATION

Commercial Service Tools

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Tool name

Description

Power tool

Loosening screws

PBIC0191E

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< ON-VEHICLE REPAIR >

SONAR CONTROL UNIT

ON-VEHICLE REPAIR

SONAR CONTROL UNIT

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove AV control unit. Refer to 

AV-903, "Exploded View"

.

2.

Remove screws and connector, and then sonar control unit.

INSTALLATION

Install in the reverse order of removal.

JPNIA0904ZZ

1.

Sonar control unit