Nissan X-Trail 32. Instruction — part 1850
B27DB S/L IGN OFF
SEC-167
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B27DB S/L IGN OFF
DTC Description
INFOID:0000000010922203
DTC DETECTION LOGIC
POSSIBLE CAUSE
Harness or connectors
(Steering lock unit power supply circuit is open or shorted)
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Select “Self Diagnosis Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Refer to
SEC-167, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010922204
1.
CHECK STEERING LOCK UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT
1.
Disconnect IPDM E/R connector and BCM connector.
2.
Check continuity between BCM harness connector and IPDM E/R harness connector.
3.
Check continuity between BCM harness connector and ground
Is the inspection result normal?
DTC No.
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B27DB–00
S/L IGN OFF
(Steering lock unit ignition off)
When steering lock unit detects a steering lock unit power circuit discon-
nection.
(+)
(-)
Voltage
BCM
Connector
Terminal
E23
166
Ground
9 - 16 V
IPDM E/R
BCM
Continuity
Connector
Terminal
Connector
Terminal
E10
3
E23
166
Existed
BCM
Ground
Continuity
Connector
Terminal
E23
166
Not existed
SEC-168
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B27DB S/L IGN OFF
YES
>> GO TO 3.
NO
>> Repair or replace harness
3.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
B27DC S/L POWER SUPPLY
SEC-169
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B27DC S/L POWER SUPPLY
DTC Description
INFOID:0000000010922205
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors
(Steering lock unit power supply circuit is short to battery)
• BCM
FAIL-SAFE
Inhibit steering lock
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Select “Self Diagnosis Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Refer to
SEC-169, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010922206
1.
CHECK STEERING LOCK UNIT POWER SUPPLY
Check voltage between steering lock unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT (SHORT TO GROUND)
1.
Disconnect BCM connector and steering lock unit connector.
2.
Check continuity between steering lock unit harness connector and BCM harness connector.
3.
Check voltage between BCM harness connector and ground.
DTC No.
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B27DC–00
S/L POWER SUPPLY
(Steering lock unit power
supply)
When power is supplied to the steering lock unit even though BCM is not supplying
power to the steering lock unit.
(+)
(-)
Condition
Voltage
Steering lock unit
Connector
Terminal
M57
2
Ground
Steering lock unit
Active
9 - 16 V
Not active
0 - 0.5 V
Steering lock unit
BCM
Continuity
Connector
Terminal
Connector
Terminal
M57
2
M87
41
Existed
BCM
Ground
Continuity
Connector
Terminal
M87
41
Not existed
SEC-170
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B27DC S/L POWER SUPPLY
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT(SHORT TO BATTERY)
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
REPLACE BCM
Replace BCM. Refer to
BCS-121, "Removal and Installation"
.
Is DTC detected?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
BCM
Ground
Voltage
Connector
Terminal
M87
41
0 V
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