Infiniti G37 Coupe. Manual — part 64

Check the malfunction symptoms by performing the following items.
• Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-

tion occurred).

• Check the symptom.

Is the occurred symptom malfunction?

YES

>> GO TO 2.

>> INSPECTION END

DIAGNOSIS WITH CONSULT-III

JSNIA0732GB

DIAGNOSIS AND REPAIR WORKFLOW

AV-11

< BASIC INSPECTION >

[BASE AUDIO WITHOUT NAVIGATION]

Connect CONSULT-III and perform a self-diagnosis for “MULTI AV”. Refer to

AV-26, "CONSULT - III Func-

tion (MULTI AV)"

NOTE:
Skip to step 4 of the diagnosis procedure if “MULTI AV” is not displayed.

Check if any DTC is displayed in the self-diagnosis results.

Is DTC displayed?

YES

>> GO TO 3.

>> GO TO 4.

TROUBLE DIAGNOSIS FOR DTC

Check the DTC indicated in the self-diagnosis results.

Perform the relevant diagnosis referring to the DTC Index. Refer to

AV-76, "DTC Index"

>> GO TO 5.

TROUBLE DIAGNOSIS FOR SYMPTOMS

Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to

AV-103, "Symptom

Table"

>> GO TO 5.

ERROR PART REPAIR

Repair or replace the identified malfunctioning parts.

Perform a self-diagnosis for “MULTI AV” with CONSULT-III.
NOTE:
Erase the stored self-diagnosis results after repairing or replacing the relevant components if any DTC
has been indicated in the self-diagnosis results.

Check that the symptom does not occur.

Does the symptom occur?

YES

>> GO TO 1.

>> INSPECTION END

AV-12

< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

MULTI AV SYSTEM

FUNCTION DIAGNOSIS

MULTI AV SYSTEM

System Diagram

INFOID:0000000001559117

NOTE:
The name MULTIFUNCTION SWITCH indicates the integration of PRESET SWITCH and MULTIFUNCTION
SWITCH virtually.

System Description

INFOID:0000000001559118

Multi AV system means that the following systems are integrated.

• AV control unit functions by transmitting/receiving data one by one with each unit (slave unit) that configures

them completely as a master unit by connecting between units that configure MULTI AV system with two AV
communication lines (H, L).

• Two AV communication lines (H, L) adopt a twisted pair line that is resistant to noise.
• AV control unit is connected by CAN communication, and it receives data signal from ECM, unified meter

and A/C amp. It computes and displays fuel economy information value with the obtained information. Trans-
mitting/receiving of data signal is performed by BCM. Also, it transmits the required signal of vehicle setting
and receives the response signal.

JPNIA0403GB

System name

System explanation

AUDIO SYSTEM

AV-16, "System Description"

VEHICLE INFORMATION SYSTEM

• Indicates the status of audio, climate control system, fuel econ-

omy and maintenance.

• AV control unit displays the fuel consumption status while re-

ceiving data signal through CAN communication from ECM,
unified meter and A/C amp and BCM.

SATELLITE RADIO SYSTEM

Refer to “SATELLITE RADIO SYSTEM” shown below.

AUXILIARY INPUT SYSTEM

Refer to “AUXILIARY INPUT SYSTEM” shown below.

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Infiniti G37 Coupe. Manual — part 64

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