Nissan Cube. Manual — part 880
B1022 OCCUPANT SYSTEM CONTROL UNIT
SRC-37
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
REPLACE OCCUPANT DETECTION SYSTEM SEAT SENSOR
1.
Replace passenger seat cushion frame. Refer to
.
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 5.
NO
>> INSPECTION END
5.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-26, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-38
< DTC/CIRCUIT DIAGNOSIS >
B1023 PASSENGER AIR BAG OFF INDICATOR
B1023 PASSENGER AIR BAG OFF INDICATOR
Description
INFOID:0000000009946115
Illuminates passenger air bag OFF indicator when the passenger seat is empty or occupied by a child or a
child-seat.
DTC Logic
INFOID:0000000009946116
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “AIR BAG” Self Diagnostic Result with CONSULT.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status. Refer to
SRC-18, "Diagnosis with Air Bag Warning Lamp"
.
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009946117
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never 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
>> 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 PASSENGER AIR BAG OFF INDICATOR
1.
Replace passenger air bag OFF indicator. Refer to
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
DTC
Display contents of
CONSULT
DTC detecting condition
Possible cause
B1023
PASS A/B INDCTR CKT
[UNIT FAIL]
Passenger air bag OFF indicator circuit
is open or shorted to ground or the cir-
cuits are shorted each other
• Disconnection of wiring harness
• Malfunction in passenger air bag OFF indicator
• Malfunction in air bag diagnosis sensor unit
B1023 PASSENGER AIR BAG OFF INDICATOR
SRC-39
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
4.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-40
< DTC/CIRCUIT DIAGNOSIS >
B1025, B1032, B1048 OCCUPANT SYSTEM SENSOR
B1025, B1032, B1048 OCCUPANT SYSTEM SENSOR
Description
INFOID:0000000009946118
Occupant Detection System sensor detects occupant in passenger seat and transmits it to Occupant Detec-
tion System control unit.
DTC Logic
INFOID:0000000009946119
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “AIR BAG” Self Diagnostic Result with CONSULT.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status. Refer to
SRC-18, "Diagnosis with Air Bag Warning Lamp"
.
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009946120
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never 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
>> 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.
REPLACE OCCUPANT DETECTION SYSTEM CONTROL UNIT
1.
Replace occupant detection system control unit. Refer to
SR-29, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
.
DTC
Display contents of
CONSULT
DTC detecting condition
Possible cause
B1025
B1032
B1048
OCS SENSOR
• Internal malfunction of Occupant Detec-
tion System control unit
• Malfunction of circuit between Occupant
Detection System control unit and Air
bag diagnosis sensor unit
• Malfunction of Air bag diagnosis sensor
unit
• Disconnection of wiring harness
• Malfunction in Occupant Detection System
control unit
• Malfunction in air bag diagnosis sensor unit
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