Infiniti QX56 (Z62). Manual — part 422
DLK-154
< DTC/CIRCUIT DIAGNOSIS >
AUTOMATIC BACK DOOR SWITCH
AUTOMATIC BACK DOOR SWITCH
Component Function Check
INFOID:0000000006225977
1.
CHECK FUNCTION
1.
Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2.
Select “AUTO BD SW” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> Automatic back door switch is OK.
NO
>> Refer to
DLK-154, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000006225978
1.
CHECK AUTOMATIC BACK DOOR SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect automatic back door switch connector.
3.
Check voltage between automatic back door switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK AUTOMATIC BACK DOOR SWITCH CIRCUIT
1.
Disconnect automatic back door control module connector.
2.
Check continuity between automatic back door control module harness connector and automatic back
door switch harness connector.
3.
Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic back door control module. Refer to
DLK-262, "Removal and Installation"
.
NO
>> Repair or replace harness.
3.
CHECK AUTOMATIC BACK DOOR SWITCH GROUND CIRCUIT
Check continuity between automatic back door switch harness connector and ground.
Monitor item
Condition
Status
AUTO BD SW
Automatic back door switch
Pressed
ON
Released
OFF
(+)
(–)
Voltage
(Approx.)
Automatic back door switch
Connector
Terminal
M127
1
Ground
Battery voltage
Automatic back door control module
Automatic back door switch
Continuity
Connector
Terminal
Connector
Terminal
B26
2
M127
1
Existed
Automatic back door control module
Ground
Continuity
Connector
Terminal
B26
2
Not existed
AUTOMATIC BACK DOOR SWITCH
DLK-155
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK AUTOMATIC BACK DOOR SWITCH
DLK-155, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace automatic back door switch.
5.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000006225979
1.
CHECK AUTOMATIC BACK DOOR SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect automatic back door switch connector.
3.
Check continuity between automatic back door switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace automatic back door switch.
Automatic back door switch
Ground
Continuity
Connector
Terminal
M127
3
Existed
Automatic back door switch
Condition
Continuity
Terminal
1
3
Automatic back door switch
Pressed
Existed
Released
Not existed
DLK-156
< DTC/CIRCUIT DIAGNOSIS >
HALF LATCH SWITCH
HALF LATCH SWITCH
Component Function Check
INFOID:0000000006225980
1.
CHECK FUNCTION
1.
Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2.
Select “HALF LATCH SW” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> Half latch switch is OK.
NO
>> Refer to
DLK-156, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000006225981
1.
CHECK HALF LATCH SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect back door lock assembly connector.
3.
Check voltage between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK HALF LATCH SWITCH CIRCUIT
1.
Disconnect automatic back door control module connector.
2.
Check continuity between automatic back door control module harness connector.
3.
Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic back door control module. Refer to
DLK-262, "Removal and Installation"
.
NO
>> Repair or replace harness.
3.
CHECK HALF LATCH SWITCH GROUND CIRCUIT
Check continuity between back door lock assembly harness connector and ground.
Monitor item
Condition
Status
HALF LATCH SW
Back door
Fully closed/Half latch
OFF
Open
ON
(–)
(–)
Voltage
(Approx.)
Back door lock assembly
Connector
Terminal
D157
6
Ground
Battery voltage
Automatic back door control module
Back door lock assembly
Continuity
Connector
Terminal
Connector
Terminal
B26
8
D157
6
Existed
Automatic back door control module
Ground
Continuity
Connector
Terminal
B26
8
Not existed
Back door lock assembly
Ground
Continuity
Connector
Terminal
D157
8
Existed
HALF LATCH SWITCH
DLK-157
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK HALF LATCH SWITCH
DLK-157, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace back door lock assembly.
5.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000006225982
COMPONENT INSPECTION
1.
CHECK HALF LATCH SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect back door lock assembly connector.
3.
Check continuity between back door lock assembly terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace back door lock assembly.
Back door lock assembly
Condition
Continuity
Terminal
6
8
Back door
Open
Existed
Fully closed/Half
latch
Not existed
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