Infiniti EX35. Manual - part 1347

SRC-14

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSIS SYSTEM (AIRBAG)

Diagnosis Description

INFOID:0000000003591514

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-136, "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-III 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-III screen by touching “BACK” key of CONSULT-III 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.

DIAGNOSTIC PROCEDURE (USER MODE) 

Checking air bag operation according to air bag warning lamp-User mode

1.

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

User mode

Diagnosis mode

Display type

Air bag warning lamp

X

X

ON-OFF operation

CONSULT-III

–

X

Monitoring

DIAGNOSIS SYSTEM (AIRBAG)

SRC-15

< FUNCTION DIAGNOSIS >

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2.

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

Air bag 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-14, "Diagnosis Descrip-

tion"

SHIA0011E

SHIA0012E

SRC-16

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSTIC PROCEDURE (WITH CONSULT-III)

CONSULT-III Function

INFOID:0000000003591515

DIAGNOSIS MODE FOR CONSULT-III

• “SELF-DIAG [CURRENT]”

A current self-diagnosis results (also indicated with the number of air bag 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.

• “DISCRIMINATED NO.”

The air bag 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 air bag diagnosis sensor
unit, refer to the part number for the compatibility. After installation, replacement with a correct unit can be
checked by confirming this classification number on CONSULT-III screen.
After repair, check that the discriminated number of air bag 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.

From Diagnosis Mode to User Mode

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

Go to 

SRC-124, "Diagnosis Proce-

dure"

 or 

SRC-126, "Diagnosis Pro-

cedure"

• Air bag diagnosis sensor unit is mal-

functioning

• Air bag power supply circuit is mal-

functioning

• Air bag warning lamp circuit is mal-

functioning

Go to 

SRC-142, "Diagnosis Proce-

dure"

• Air bag diagnosis sensor unit is mal-

functioning

• Air bag warning lamp circuit is mal-

functioning

Go to 

SRC-143, "Diagnosis Proce-

dure"

Air bag warning lamp operation -User mode 

SRS condition

Reference item

SHIA0013E

SHIA0014E

Diagnostic Mode

Description

SELF-DIAG RESULT

The self-diagnosis result is displayed (SELF-DIAG [CURRENT], [PAST], [RECORD])

DISCRIMINATED No.

Discriminated number of air bag diagnosis sensor unit is displayed

DIAGNOSIS SYSTEM (AIRBAG)

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To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-III until “SELECT SYSTEM”
appears, then diagnosis mode automatically changes to User mode.

SELF-DIAGNOSIS FUNCTION (Without CONSULT-III)

• The reading of these results is accomplished by “User mode” and “Diagnosis mode”.
• After a malfunction is repaired, turn ignition switch ON. Diagnosis mode returns to the user mode. At that

time, the self-diagnosis result is cleared.

HOW TO CHANGE SELF-DIAGNOSIS MODE WITHOUT CONSULT-III

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