Content .. 1189 1190 1191 1192 ..

Infiniti G37 Coupe. Manual - part 1191

SRC-14

< FUNCTION DIAGNOSIS >

PASSENGER SEAT BELT WARNING SYSTEM

Component parts

• Seat belt warning lamp (1).
• Seat belt buckle switch.

JMHIA0003ZZ

DIAGNOSIS SYSTEM (AIRBAG)

SRC-15

< FUNCTION DIAGNOSIS >

SRC

DIAGNOSIS SYSTEM (AIRBAG)

Diagnosis Description

INFOID:0000000001694483

CAUTION:

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

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

• Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a

new one.

• Keep ground portion clean.

DIAGNOSIS FUNCTION

• The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-III.
• The user mode is exclusively prepared for the customer (driver). This mode warns the driver of a system

malfunction through the operation of the “AIR BAG” warning lamp.

• The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
• The mode applications for the “AIR BAG” warning lamp and CONSULT-III are as follows.

HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.

Information from Customer.

• WHAT..... Vehicle model.
• WHEN..... Date, Frequencies.
• WHERE..... Road conditions.
• HOW..... Operating conditions, Symptoms.

Preliminary Check.

Check that the following parts are in good order.
• Battery (Refer to

PG-3, "How to Handle Battery"

• Fuse (Refer to

SRC-141, "Wiring Diagram - SRS AIR BAG CONTROL SYSTEM -"

• System component-to-harness connections.

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (With CONSULT-III)

• “SELF-DIAG [CURRENT]”

A current self-diagnosis result is displayed on CONSULT-IIl screen in real time.
After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.

• “SELF-DIAG [PAST]”

Return to “SELF-DIAG [CURRENT]” CONSULT-lll screen by touching “BACK” key of CONSULT-lll and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the user mode shows the system
malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

• “TROUBLE DIAG RECORD”

The memory of “TROUBLE DIAG RECORD” cannot be erased.

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (Without CONSULT-III)

After a malfunction is repaired, turn the ignition switch OFF for at least one second, then turn ignition switch
ON diagnosis mode returns to the user mode. At that time the self-diagnosis result is cleared.

User mode

Diagnosis mode

Display type

“AIR BAG” warning lamp

ON-OFF operation

CONSULT-III

–

Monitoring

SRC-16

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSTIC PROCEDURE (User mode)

Checking Air bag operation according to “AIR BAG” Warning Lamp-User Mode

Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.

Compare the SRS air bag warning lamp blinking pattern with the
examples.

Warning lamp examples (User mode)

BF-1845D

“AIR BAG” warning lamp operation -User mode

SRS condition

Reference item

• No malfunction is detected.
• No further action is necessary.

—

• The system is malfunctioning and

needs to be repaired as indicated.

Go to

SRC-15, "Diagnosis Descrip-

tion"

SHIA0011E

SHIA0012E

DIAGNOSIS SYSTEM (AIRBAG)

SRC-17

< FUNCTION DIAGNOSIS >

SRC

DIAGNOSTIC PROCEDURE (With CONSULT-III)

CONSULT-III Function

INFOID:0000000001694484

DIAGNOSIS MODE FOR CONSULT-III

• “SELF-DIAG [CURRENT]”

A current self-diagnosis results (also indicated with the number of warning lamp blinks in diagnosis mode)
are displayed on CONSULT-III screen in real time. This refers to a malfunctioning part requiring repairs.

• “SELF-DIAG [PAST]”

Diagnosis results previously stored in the memory are displayed on CONSULT-III screen. The stored results
are not erased until memory erasing is executed.

• “TROUBLE DIAG RECORD”

With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be displayed
on CONSULT-III screen.

• “ECU DISCRIMINATED NO.”

The diagnosis sensor unit for each vehicle model has its own individual classification number. This number
will be displayed on CONSULT-III screen, as shown. When replacing the diagnosis sensor unit, refer to the
part number for the compatibility. After installation, replacement with a correct unit can be checked by con-
firming this classification number on CONSULT-III screen.
After repair, check that the discriminated number of diagnosis sensor unit installed to vehicle are the same.
Refer to

SR-16, "Removal and Installation"

HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-III

From User Mode to Diagnosis Mode

After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.

• Air bag is deployed.
• Seat belt pre-tensioner is deployed.

Go to

SRC-129,

"Diagnosis Procedure (Component

diagnosis)"

SRC-131,

"Diagnosis Procedure (Component

diagnosis)"