Infiniti QX56 (Z62). Manual — part 911
LAN
ICC BRANCH LINE CIRCUIT
LAN-221
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
ICC BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000006256392
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
-
ADAS control unit
-
CAN gateway
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of CAN gateway.
2.
Check the continuity between the CAN gateway harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair the root cause (CAN communication circuit 2). Refer to
.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Connect the connector of CAN gateway.
2.
Disconnect the connector of ADAS control unit.
3.
Check the resistance between the ADAS control unit harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the ADAS control unit branch line.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ADAS control unit. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
.
YES (Past error)>>Error was detected in the ADAS control unit branch line.
NO
>> Repair the power supply and the ground circuit.
CAN gateway harness connector
Continuity
Connector No.
Terminal No.
M125
4
6
Existed
10
12
Existed
ADAS control unit harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
B61
14
15
Approx. 54 – 66
LAN-222
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
PWBD BRANCH LINE CIRCUIT
PWBD BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000006256393
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
-
Automatic back door control module
-
CAN gateway (With ICC system)
Is the inspection result normal?
YES (With ICC system)>>GO TO 2.
YES (Without ICC system)>>GO TO 3.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of CAN gateway.
2.
Check the continuity between the CAN gateway harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair the root cause (CAN communication circuit 2). Refer to
.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Connect the connector of CAN gateway. (With ICC system)
2.
Disconnect the connector of automatic back door control module.
3.
Check the resistance between the automatic back door control module harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the automatic back door control module branch line.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the automatic back door control module. Refer to
"AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the automatic back door control module. Refer to
YES (Past error)>>Error was detected in the automatic back door control module branch line.
NO
>> Repair the power supply and the ground circuit.
CAN gateway harness connector
Continuity
Connector No.
Terminal No.
M125
4
6
Existed
10
12
Existed
Automatic back door control module harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
B26
7
6
Approx. 54 – 66
LAN
RDR-R BRANCH LINE CIRCUIT
LAN-223
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
RDR-R BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000006256394
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the terminals and connectors of the side radar RH for damage, bend and loose connection (unit
side and connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
Check the right/left switching signal circuit of the side radar RH. Refer to
DAS-514, "Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the root cause.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of side radar RH.
2.
Check the resistance between the side radar RH harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the side radar RH branch line.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the side radar RH. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the side radar RH. Refer to
DAS-523, "Removal and Installation"
.
YES (Past error)>>Error was detected in the side radar RH branch line.
NO
>> Repair the power supply and the ground circuit.
Side radar RH harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
B243
4
3
Approx. 54 – 66
LAN-224
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
RDR-L BRANCH LINE CIRCUIT
RDR-L BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000006256395
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the terminals and connectors of the side radar LH for damage, bend and loose connection (unit
side and connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of side radar LH.
2.
Check the resistance between the side radar LH harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the side radar LH branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the side radar LH. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the side radar LH. Refer to
DAS-523, "Removal and Installation"
YES (Past error)>>Error was detected in the side radar LH branch line.
NO
>> Repair the power supply and the ground circuit.
Side radar LH harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
B74
4
3
Approx. 54 – 66
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