Nissan Qashqai (2007-2010). Manual — part 794
B1072 ASSIST A/B MODULE
SRC-63
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
>> GO TO 3.
3.
DTC CODE
If DTC is detected. Refer to
>> END
DTC CONFIRMATION PROCEDURE (Without CONSULT-III)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2.
2.
USER MODE-DIAG MODE
After air bag warning lamp illuminates for 7 seconds, turn ignition switch OFF within 1 second.
>> GO TO 3.
3.
USER MODE-DIAG MODE
Wait more than 3 seconds.
>> GO TO 4.
4.
USER MODE-DIAG MODE
Repeat step 1 to 3 twice. (Perform three times in all.)
>> GO TO 5.
5.
DIAG MODE
Turn ignition switch ON. (SRS is now in diagnosis mode.)
>> GO TO 6.
6.
DIAG MODE (AIR BAG WARNING LAMP)
Malfunctioning portion is indicated according to the blinking times of air bag warning lamp. Refer to
>> END
Diagnosis Procedure (Component diagnosis)
INFOID:0000000001069809
With CONSULT-III
CAUTION:
SRC-64
< COMPONENT DIAGNOSIS >
B1072 ASSIST A/B MODULE
• Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least 3 min-
utes. (To discharge backup capacitor.)
• Do not use unspecified tester or other measuring device.
DIAGNOSTIC PROCEDURE
1.
CHECK HARNESS CONNECTOR
Are connections of harness connectors and terminals correct?
YES
>> GO TO 2.
NO
>> Repair or replace harness connector.
2.
CHECK WIRING HARNESS
Is the outside of wiring harness normal, without any damage?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK PASSENGER AIR BAG MODULE
Is “AIR BAG” displayed on CONSULT-III?
YES
>> Replace passenger air bag module.
NO
>> Replace diagnosis sensor unit (ACU).
B1073 ASSIST A/B MODULE
SRC-65
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
B1073 ASSIST A/B MODULE
Description
INFOID:0000000001069810
DTC B1073 [SHORT] ASSIST A/B MODULE
For front passenger “AIR BAG”, crash is judged by main “G” sensor output signal and sub “G” sensor in front
direction.
OPERATION
In case of frontal collision whose acceleration exceeds the specified level, the ignition materials are ignited by
electric ignition system. The system burns and introduces the chemical reaction of gas generating materials to
generate hot gases that flow into the air bag through a filter and expand the bag.
STRUCTURE
Air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Front passenger air bag module is installed on the instrument panel with fixed bolts.
DTC Logic
INFOID:0000000001069811
DTC DETECTION LOGIC
With CONSULT-III
DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
Without CONSULT-III
Warning Lamp Flash Code Chart
DTC CONFIRMATION PROCEDURE (With CONSULT-III)
1.
IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2.
2.
CONSULT-III
Check the “SELF-DIAG” RESULT with CONSULT-III.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1073
ASSIST A/B MODULE
[SHORT]
Front passenger air bag module circuits
are shorted to each othor.
1.
Visually check the wiring harness-
connection.
2.
Replace the harness if it has visi-
ble damage.
3.
Replace front passenger air bag
module.
4.
Replace diagnosis sensor unit
(ACU).
JMHIA0035GB
SRC-66
< COMPONENT DIAGNOSIS >
B1073 ASSIST A/B MODULE
>> GO TO 3.
3.
DTC CODE
If DTC is detected. Refer to
>> END
DTC CONFIRMATION PROCEDURE (Without CONSULT-III)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
IGNITION SWITCH
Turn ignition switch ON.
>> GO TO 2.
2.
USER MODE-DIAG MODE
After air bag warning lamp illuminates for 7 seconds, turn ignition switch OFF within 1 second.
>> GO TO 3.
3.
USER MODE-DIAG MODE
Wait more than 3 seconds.
>> GO TO 4.
4.
USER MODE-DIAG MODE
Repeat step 1 to 3 twice. (Perform three times in all.)
>> GO TO 5.
5.
DIAG MODE
Turn ignition switch ON. (SRS is now in diagnosis mode.)
>> GO TO 6.
6.
DIAG MODE (AIR BAG WARNING LAMP)
Malfunctioning portion is indicated according to blinking times of air bag warning lamp. Refer to
>> END
Diagnosis Procedure (Component diagnosis)
INFOID:0000000001069812
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