Infiniti QX56 (Z62). Manual — part 1179
SEC-106
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B26E9 STEERING STATUS
B26E9 STEERING STATUS
DTC Logic
INFOID:0000000006226260
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF.
3.
Press driver side door switch.
4.
Turn ignition switch ON.
5.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.
Is DTC detected?
YES
>> Refer to
SEC-106, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226261
1.
INSPECTION START
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “BCM” using CONSULT-III.
3.
Touch “ERASE”.
4.
Perform DTC CONFIRMATION PROCEDURE for DTC B26E9. Refer to
.
Is DTC detected?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE STEERING LOCK UNIT
1.
Replace steering lock unit.
2.
Perform the service procedure for steering lock unit replacement. Refer to CONSULT-III Operation Man-
ual NATS-IVIS/NVIS.
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B26E9
LOCK MALFUNCTION
BCM activates steering lock but steering state that
BCM recognizes is unlock.
Steering lock unit
B26EF STEERING LOCK RELAY
SEC-107
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B26EF STEERING LOCK RELAY
DTC Logic
INFOID:0000000006226262
DTC DETECTION LOGIC
NOTE:
• If DTC B26EF is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC B26EF is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Shift selector lever to the P position.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF.
4.
Press driver side door switch and wait 2 seconds or more.
5.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.
Is DTC detected?
YES
>> Go to
SEC-107, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226263
1.
CHECK DTC OF IPDM E/R
Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?
YES
>> Perform the diagnosis procedure related to the detected DTC. Refer to
NO
>> GO TO 2.
2.
CHECK STEERING LOCK UNIT POWER SUPPLY
Check voltage between steering lock unit harness connector and ground.
NOTE:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B26EF
STRG LCK RELAY OFF
BCM requests IPDM E/R to turn steering lock
relay ON, but BCM cannot receive steering
lock relay ON state signal from IPDM E/R
(CAN) within 2 seconds.
• Harness or connectors
(CAN communication line is open
or shorted.)
• Harness or connector
(Steering lock unit circuit is open or
shorted.)
• Steering lock unit
• IPDM E/R
(+)
(–)
Condition
Voltage (V)
(Approx.)
Steering lock unit
Connector
Terminal
M12
1
Ground
Ignition switch
OFF
A few seconds after
opening the driver door
Battery voltage
Ignition switch
LOCK
Press the push-button
ignition switch
Battery voltage
Ignition switch ACC or ON
0
SEC-108
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B26EF STEERING LOCK RELAY
Is the inspection normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
REPLACE STEERING LOCK UNIT
1.
Replace steering lock unit.
2.
Perform the service procedure for steering lock unit replacement. Refer to CONSULT-III Operation Man-
ual NATS-IVIS/NVIS.
>> INSPECTION END
4.
CHECK STEERING LOCK RELAY CIRCUIT
1.
Disconnect IPDM E/R connector and steering lock unit connector.
2.
Check continuity between IPDM E/R harness connector and steering lock unit harness connector.
3.
Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-32, "Removal and Installation"
NO
>> Repair or replace harness.
To lock the steering
1.
Set the selector lever in the P position.
2.
Turn the power supply position to the OFF position.
3.
Press any door switch.
To unlock the steering
1.
Set the selector lever in the P position.
2.
Press the push-button ignition switch with brake pedal not depressed.
IPDM E/R
Steering lock unit
Continuity
Connector
Terminal
Connector
Terminal
E14
46
M12
1
Existed
IPDM E/R
Ground
Continuity
Connector
Terminal
E14
46
Not existed
B26F0 STEERING LOCK RELAY
SEC-109
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B26F0 STEERING LOCK RELAY
DTC Logic
INFOID:0000000006226264
DTC DETECTION LOGIC
NOTE:
• If DTC B26F0 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC B26F0 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Shift selector lever to the P position.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF.
4.
Press driver side door switch and wait 2 seconds or more.
5.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.
Is DTC detected?
YES
>> Go to
SEC-109, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226265
1.
CHECK DTC OF IPDM E/R
Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT-III.
Is DTC detected?
YES
>> Perform the diagnosis procedure related to the detected DTC. Refer to
NO
>> GO TO 2.
2.
CHECK STEERING LOCK UNIT POWER SUPPLY
Check voltage between steering lock unit harness connector and ground.
NOTE:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B26F0
STRG LCK RELAY ON
BCM requests IPDM E/R to turn steering lock
relay OFF, but BCM cannot receive steering
lock relay OFF state signal from IPDM E/R
(CAN) within 2 seconds.
• Harness or connectors
(CAN communication line is open
or shorted.)
• Harness or connector
(Steering lock unit circuit is open or
shorted.)
• Steering lock unit
• IPDM E/R
(+)
(–)
Condition
Voltage (V)
(Approx.)
Steering lock unit
Connector
Terminal
M12
1
Ground
Ignition switch
OFF
A few seconds after
opening the driver door
Battery voltage
Ignition switch
LOCK
Press the push-button
ignition switch
Battery voltage
Ignition switch ACC or ON
0
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