Infiniti QX56 (Z62). Manual — part 417
DLK-134
< DTC/CIRCUIT DIAGNOSIS >
REMOTE KEYLESS ENTRY RECEIVER
REMOTE KEYLESS ENTRY RECEIVER
Component Function Check
INFOID:0000000006225947
1.
CHECK FUNCTION
1.
Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2.
Select “RKE OPE COUN1” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> Remote keyless entry receiver is OK.
NO
>> Refer to
DLK-134, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000006225948
1.
CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 1
1.
Disconnect BCM and remote keyless entry receiver connector
2.
Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace harness.
Monitor item
Condition
RKE OPE COUN1
Checks whether value changes when operating Intelligent Key
(+)
(–)
Condition
Signal
(Reference value)
Remote keyless entry receiver
Connector
Terminal
B21
2
Ground
Waiting
Signal receiving
JMKIA3838GB
JMKIA3841GB
BCM
Remote keyless entry receiver
Continuity
Connector
Terminal
Connector
Terminal
M68
20
B21
2
Existed
REMOTE KEYLESS ENTRY RECEIVER
DLK-135
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
3.
CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 2
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY
1.
Disconnect remote keyless entry receiver.
2.
Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 3
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
6.
CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 1
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
BCM
Ground
Continuity
Connector
Terminal
M68
20
Not existed
(+)
(–)
Signal
(Reference value)
Remote keyless entry receiver
Connector
Terminal
B21
4
Ground
JMKIA3838GB
BCM
Remote keyless entry receiver
Continuity
Connector
Terminal
Connector
Terminal
M68
19
B21
4
Existed
BCM
Ground
Continuity
Connector
Terminal
M68
19
Not existed
BCM
Remote keyless entry receiver
Continuity
Connector
Terminal
Connector
Terminal
M68
18
B21
1
Existed
DLK-136
< DTC/CIRCUIT DIAGNOSIS >
REMOTE KEYLESS ENTRY RECEIVER
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness.
7.
CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 2
1.
Connect BCM connector.
2.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace remote keyless entry receiver.
NO
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
8.
CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI OUTPUT SIGNAL
1.
Connect BCM and remote keyless entry receiver connector.
2.
Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace remote keyless entry receiver.
9.
CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI CIRCUIT
1.
Disconnect BCM and remote keyless entry receiver connector.
2.
Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
BCM
Ground
Continuity
Connector
Terminal
M68
18
Not existed
BCM
Ground
Continuity
Connector
Terminal
M68
18
Existed
(+)
(–)
Condition
Signal
(Reference value)
Remote keyless entry receiver
Connector
Terminal
B21
3
Ground
Waiting
0 V
Signal receiving
JMKIA3838GB
BCM
Remote keyless entry receiver
Continuity
Connector
Terminal
Connector
Terminal
M68
22
B21
3
Existed
DOOR REQUEST SWITCH
DLK-137
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
DOOR REQUEST SWITCH
Component Function Check
INFOID:0000000006225949
1.
CHECK FUNCTION
1.
Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2.
Select “REQ SW-DR”, “REQ SW-AS” in “DATA MONITOR” mode.
3.
Check that the function operates normally according to the following conditions.
Is the inspection result normal?
YES
>> Front door request switch is OK.
NO
>> Refer to
DLK-137, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000006225950
1.
CHECK DOOR REQUEST SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect malfunctioning front door request switch connector.
3.
Check voltage between malfunctioning front door request switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK DOOR REQUEST SWITCH CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between malfunctioning front door request switch harness connector and BCM harness
connector.
3.
Check continuity between malfunctioning front door request switch harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harness.
Monitor item
Condition
Status
REQ SW -DR
Driver side door request switch
Pressed
ON
Released
OFF
REQ SW -AS
Passenger side door request switch
Pressed
ON
Released
OFF
(+)
(–)
Voltage
(Approx.)
Front door request switch
Connector
Terminal
Driver side
D11
1
Ground
12 V
Passenger side
D31
Front door request switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
Driver side
D11
1
M71
75
Existed
Passenger side
D31
76
Front door request switch
Ground
Continuity
Connector
Terminal
Driver side
D11
1
Not existed
Passenger side
D31
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