Infiniti EX35. Manual — part 1347
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< 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
).
• 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)
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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
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
• 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
• Air bag diagnosis sensor unit is mal-
functioning
• Air bag warning lamp circuit is mal-
functioning
Go to
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
PHIA0709E
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