Infiniti G37 Coupe. Manual — part 1196
SRC-34
< COMPONENT DIAGNOSIS >
B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT
>> GO TO 2.
2.
CHECK AIR BAG WARNING LAMP
Check the warning lamp status.
Is malfunctioning part detected?
YES
>> Refer to
.
NO
>> INSPECTION END.
Diagnosis Procedure (Component diagnosis)
INFOID:0000000001694508
With CONSULT-lll
WARNING:
• 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
Check the connection of harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness connectors.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK DIAGNOSIS SENSOR UNIT
1.
Replace diagnosis sensor unit (ACU).
2.
Check the screen of CONSULT-III.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Check the intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
B1033, B1034 CRASH ZONE SEN
SRC-35
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
B1033, B1034 CRASH ZONE SEN
Description
INFOID:0000000001694509
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 feeds 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:0000000001694510
DTC DETECTION LOGIC
With CONSULT-lll
DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD)
DTC CONFIRMATION PROCEDURE (With CONSULT-lll)
1.
INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.
CHECK SELF-DIAG RESULT
Check the screen of CONSULT-lll.
Is malfunctioning part detected?
YES
>> Refer to
SRC-36, "Diagnosis Procedure (Component diagnosis)"
NO
>> INSPECTION END.
DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
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.
• Disconnection of wiring harness.
• Internal breakdown in crash zone
sensor.
• Internal breakdown in diagnosis sen-
sor unit (ACU).
SRC-36
< COMPONENT DIAGNOSIS >
B1033, B1034 CRASH ZONE SEN
2.
CHECK AIR BAG WARNING LAMP-
Check the warning lamp status.
Is malfunctioning part detected?
YES
>> Refer to
.
NO
>> INSPECTION END.
Diagnosis Procedure (Component diagnosis)
INFOID:0000000001694511
With CONSULT-lll
WARNING:
• 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
Check the connection of harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness connectors.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace wiring harness.
3.
CHECK CRASH ZONE SENSOR
1.
Replace crash zone sensor.
2.
Check the screen of CONSULT-lll.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Check the intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
B1035, B1036, B1038, B1040 CRASH ZONE SEN
SRC-37
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
B1035, B1036, B1038, B1040 CRASH ZONE SEN
Description
INFOID:0000000001694512
DTC B1035, B1036, B1038, B1040 [COMM FAIL] CRASH ZONE SENSOR
Main “G” sensor that generates signal voltage, when it detects deceleration beyond the specified level caused
by vehicle frontal collision.
OPERATION
When ACU defines 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 feeds 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:0000000001694513
DTC DETECTION LOGIC
With CONSULT-lll
DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
DTC CONFIRMATION PROCEDURE (With CONSULT-lll)
1.
INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.
CHECK SELF-DIAG RESULT
Check the screen of CONSULT-lll.
Is malfunctioning part detected?
YES
>> Refer to
SRC-38, "Diagnosis Procedure (Component diagnosis)"
NO
>> INSPECTION END.
DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
INSPECTION START
Turn ignition switch ON.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1035
B1036
B1038
B1040
CRASH ZONE SEN-
SOR
[COMM FAIL]
[UNMATCH]
[OPEN/UPR-VB-
SHORT]
[SHORT/UPR-GND-
SHORT]
Crash zone sensor is out of order.
• Disconnection of wiring harness and
open/short.
• Internal breakdown in crash zone
sensor.
• Internal breakdown in diagnosis sen-
sor unit (ACU).
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