Nissan X-Trail 32. Manual — part 1968
SRC-40
< DTC/CIRCUIT DIAGNOSIS >
B0020 SIDE AIR BAG MODULE
B0020 SIDE AIR BAG MODULE
DTC Description
INFOID:0000000010688469
DTC DETECTION LOGIC
POSSIBLE CAUSE
[B0020–09, B0020–1A]
• Connection malfunction or short circuit of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0020–11]
• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0020–12]
• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0020–13]
• Connection malfunction or open circuit of harness and connector
• Internal malfunction of side air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.
Is malfunctioning part detected?
YES
>> Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010688470
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.
CHECK HARNESS CONNECTOR
Check the harness connector for disconnection, looseness or damage.
Is the inspection result normal?
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B0020–09
SIDE A/B MODULE LH
[Left Side Airbag Deployment Control (Sub-
fault)]
Side air bag module LH circuits are shorted to each other
B0020–11
Side air bag module LH circuit is shorted to ground
B0020–12
Side air bag module LH circuit is shorted to power supply circuit
B0020–13
Side air bag module LH circuit is open
B0020–1A
Side air bag module LH circuits are shorted to each other
B0020 SIDE AIR BAG MODULE
SRC-41
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
YES
>> GO TO 2.
NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace malfunctioning harness and connector.
3.
REPLACE SIDE AIR BAG MODULE LH
1.
Replace side air bag module LH. Refer to
SR-28, "Removal and Installation"
.
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-38, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-42
< DTC/CIRCUIT DIAGNOSIS >
B0021 CURTAIN AIR BAG MODULE
B0021 CURTAIN AIR BAG MODULE
DTC Description
INFOID:0000000010688471
DTC DETECTION LOGIC
POSSIBLE CAUSE
[B0021–09, B0021–1A]
• Connection malfunction or short circuit of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0021–11]
• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0021–12]
• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
[B0021–13]
• Connection malfunction or open circuit of harness and connector
• Internal malfunction of curtain air bag module LH
• Internal malfunction of air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.
Is malfunctioning part detected?
YES
>> Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010688472
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.
CHECK HARNESS CONNECTOR
Check the harness connector for disconnection, looseness or damage.
Is the inspection result normal?
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B0021–09
CURTAIN A/B MODULE LH
[Left Curtain Deployment Control 1 (Subfault)]
Curtain air bag module LH circuits are shorted to each other
B0021–11
Curtain air bag module LH circuit is shorted to ground
B0021–12
Curtain air bag module LH circuit is shorted to power supply circuit
B0021–13
Curtain air bag module LH circuit is open
B0021–1A
Curtain air bag module LH circuits are shorted to each other
B0021 CURTAIN AIR BAG MODULE
SRC-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
YES
>> GO TO 2.
NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace malfunctioning harness and connector.
3.
REPLACE CURTAIN AIR BAG MODULE LH
1.
Replace curtain air bag module LH. Refer to
SR-29, "Removal and Installation"
.
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-38, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
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