Nissan Qashqai (2007-2010). Manual — part 786
B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT
SRC-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
With CONSULT-III
CAUTION:
• 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 connectors.
2.
CHECK WIRING HARNESS
Is the outside of wiring harness normal, without any damage?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK DIAGNOSIS SENSOR UNIT
Is “DIAGNOSIS SENSOR UNIT” displayed on CONSULT-III?
YES
>> Replace diagnosis sensor unit (ACU).
>> INSPECTION END.
SRC-32
< COMPONENT DIAGNOSIS >
B1033, B1034 CRASH ZONE SEN
B1033, B1034 CRASH ZONE SEN
Description
INFOID:0000000001069777
DTC B1033, B1034 [UNIT FAIL] CRASH ZONE SENSOR
Main “G” sensor generates signal voltage when it detects deceleration beyond the specified level caused by
vehicle frontal collision.
OPERATION
When ACU define the both signal voltage of the “G” sensor and the safing sensor to be that of collision which
exceeds specified level, the driving circuit switches on and feed the electric ignitor of both driver and passen-
ger air bags and pre-tensioner seat belt.
STRUCTURE
Integrated type of the “G” sensor element for frontal collision with output terminals for signal voltage.
INSTALLATION
Crash zone sensor is installed on the radiator core support assembly with fixed nuts.
DTC Logic
INFOID:0000000001069778
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
B1033
B1034
CRASH ZONE SEN-
SOR
[UNIT FAIL]
crash zone sensor is out of order.
1.
Visually check the wiring harness-
connection.
2.
Replace the harness if it has visi-
ble damage.
3.
Replace crash zone sensor.
4.
Replace diagnosis sensor unit
(ACU).
JMHIA0036GB
B1033, B1034 CRASH ZONE SEN
SRC-33
< 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 blinking times of air bag warning lamp. Refer to
>> END
Diagnosis Procedure (Component diagnosis)
INFOID:0000000001069779
SRC-34
< COMPONENT DIAGNOSIS >
B1033, B1034 CRASH ZONE SEN
With CONSULT-III
CAUTION:
• 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 connectors.
2.
CHECK WIRING HARNESS
Is the outside of wiring harness normal, without any damage?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK CRASH ZONE SENSOR
Is crash zone sensor displayed on CONSULT-III?
YES
>> Replace crash zone sensor.
NO
>> Replace diagnosis sensor unit (ACU).
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