Infiniti QX56 (Z62). Manual — part 406
DLK-90
< DTC/CIRCUIT DIAGNOSIS >
B2417 TOUCH SENSOR LH
B2417 TOUCH SENSOR LH
DTC Logic
INFOID:0000000006225888
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-
III.
Is DTC detected?
YES
>> Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006225889
1.
CHECK HALF LATCH SWITCH SIGNAL
1.
Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2.
Select “TOUCH SEN LH” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK TOUCH SENSOR INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect touch sensor LH connector.
3.
Check voltage between touch sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK TOUCH SENSOR LH CIRCUIT
1.
Disconnect automatic back door control module.
2.
Check continuity between automatic back door control module harness connector and touch sensor LH
harness connector.
DTC
CONSULT-III display
description
DTC detecting condition
Possible cause
B2417
TOUCH SEN L
OPEN
When the automatic back door control unit detects
the open circuit of the touch sensor LH.
• Touch sensor LH
• Harness or connectors
(Touch sensor LH circuit is open)
• Automatic back door control mod-
ule
Monitor item
Condition
Status
TOUCH SEN LH
Touch sensor LH
Other than below
OFF
Detect obstruction
ON
(+)
(–)
Voltage
(Approx.)
Touch sensor LH
Connector
Terminal
D107
1
Ground
6 V
B2417 TOUCH SENSOR LH
DLK-91
< 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
>> Replace automatic back door control module. Refer to
DLK-262, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK TOUCH SENSOR LH GROUND CIRCUIT
1.
Disconnect automatic back door control module and touch sensor RH connectors.
2.
Check continuity between automatic back door control module harness connector and touch sensor LH
harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK TOUCH SENSOR LH
DLK-91, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace touch sensor LH.
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000006225890
1.
CHECK TOUCH SENSOR LH
1.
Turn ignition switch OFF.
2.
Disconnect touch sensor LH connector.
3.
Check resistance between touch sensor LH terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace touch sensor LH.
Automatic back door control module
Touch sensor LH
Continuity
Connector
Terminal
Connector
Terminal
B26
14
D107
1
Existed
Automatic back door control module
Touch sensor LH
Continuity
Connector
Terminal
Connector
Terminal
B26
15
D107
2
Existed
Touch sensor LH
Condition
Resistance
(Approx.)
Terminal
1
2
Touch sensor LH
Detect obstruction
120
Ω
or less
Other than above
1 k
Ω
±
10%
DLK-92
< DTC/CIRCUIT DIAGNOSIS >
B2419 OPEN SWITCH
B2419 OPEN SWITCH
DTC Logic
INFOID:0000000006225891
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-
III.
Is DTC detected?
YES
>> Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006225892
1.
CHECK OPEN SWITCH SIGNAL
1.
Select “AUTOMATIC BACK DOOR CONTROL UNIT” using CONSULT-III.
2.
Select “OPEN SW” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK AUTOMATIC BACK DOOR CONTROL MODULE OUTPUT 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 4.
NO
>> GO TO 3.
DTC
CONSULT-III display
description
DTC detecting condition
Possible cause
B2419
OPEN SW
When the automatic back door control unit detects
any of the following conditions
• The change of open switch cannot be detected
for 1 second or more after starting the closure
open output for the 3rd time in a row
• The change of open switch cannot be detected
for 0.5 second or more after starting the closure
close output for the 3rd time in a row
• The condition that the open switch is in the ON
position and the close switch is in the OFF posi-
tion is detected when starting the closure open/
close output for the 3rd time in a row
• Open switch
• Harness or connectors
(Open switch circuit is open or
shorted)
• Automatic back door control mod-
ule
Monitor item
Condition
Status
OPEN SW
Back door
Fully closed/Half latch
OFF
Open
ON
(+)
(–)
Voltage
(Approx.)
Back door lock assembly
Connector
Terminal
D157
4
Ground
Battery voltage
B2419 OPEN SWITCH
DLK-93
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
3.
CHECK OPEN SWITCH CIRCUIT
1.
Disconnect automatic back door control module connector.
2.
Check continuity between automatic back door control module harness connector and back door lock
assembly 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.
4.
CHECK OPEN SWITCH GROUND CIRCUIT
Check continuity between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK OPEN SWITCH
DLK-93, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace back door lock assembly.
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000006225893
COMPONENT INSPECTION
1.
CHECK OPEN 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
Automatic back door control module
Back door lock assembly
Continuity
Connector
Terminal
Connector
Terminal
B26
20
D157
4
Existed
Automatic back door control module
Ground
Continuity
Connector
Terminal
B26
20
Not existed
Back door lock assembly
Ground
Continuity
Connector
Terminal
D157
8
Existed
Back door lock assembly
Condition
Continuity
Terminal
4
8
Back door
Open
Existed
Fully closed/Half latch
Not existed
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