Infiniti M35/M45 Y50. Manual — part 861
TROUBLE DIAGNOSIS
LAN-93
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
TCM Branch Line Circuit
NKS004GK
INSPECTION PROCEDURE
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).
–
A/T assembly connector
–
Harness connector F102
–
Harness connector M72
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of A/T assembly.
2.
Check the resistance between the A/T assembly harness connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the TCM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the TCM. Refer to
AT-180, "MAIN POWER SUPPLY AND
OK or NG
OK
>>
●
Present error: Replace the control valve with TCM.
●
Past error: Error was detected in the TCM branch line.
NG
>> Repair the power supply and the ground circuit.
NAVI Control Unit Branch Line Circuit
NKS004GI
INSPECTION PROCEDURE
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).
–
NAVI control unit connector
–
Harness connector M216
–
Harness connector M53
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
A/T assembly harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
F42
3
8
Approx. 54 – 66
LAN-94
[CAN]
TROUBLE DIAGNOSIS
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of NAVI control unit.
2.
Check the resistance between the NAVI control unit harness connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the NAVI control unit branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply, ignition signal and the ground circuit of the NAVI control unit. Refer to
matic — BOSE Surround Audio 5.1ch System —"
OK or NG
OK
>>
●
Present error: Replace the NAVI control unit. Refer to
AV-282, "AV (NAVI) Control Unit"
●
Past error: Error was detected in the NAVI control unit branch line.
NG
>> Repair the power supply and the ground circuit.
AV Control Unit Branch Line Circuit
NKS004HO
INSPECTION PROCEDURE
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).
–
AV control unit connector
–
Harness connector M216
–
Harness connector M53
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of AV control unit.
2.
Check the resistance between the AV control unit harness connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the AV control unit branch line.
NAVI control unit harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M210
71
72
Approx. 54 – 66
AV control unit harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M210
71
72
Approx. 54 – 66
TROUBLE DIAGNOSIS
LAN-95
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply, ignition signal and the ground circuit of the AV control unit. Refer to
matic — BOSE Surround Audio 5.1ch System —"
.
OK or NG
OK
>>
●
Present error: Replace the AV control unit. Refer to
AV-131, "AV (NAVI) Control Unit"
●
Past error: Error was detected in the AV control unit branch line.
NG
>> Repair the power supply and the ground circuit.
Data Link Connector Branch Line Circuit
NKS004GE
INSPECTION PROCEDURE
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 data link connector for damage, bend and loose connection (con-
nector side and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.
OK or NG
OK
>>
●
Present error: Check the following items again.
–
Decision of CAN system type.
–
Not received CONSULT-II data (SELECT SYSTEM, SELF-DIAG RESULTS, CAN DIAG SUP-
PORT MNTR).
–
Procedure for detecting root cause.
●
Past error: Error was detected in the data link connector branch line circuit.
NG
>> Repair the data link connector branch line.
Intelligent Key Unit Branch Line Circuit
NKS004GF
INSPECTION PROCEDURE
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 Intelligent Key unit for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
Data link connector
Resistance (
Ω
)
Connector No.
Terminal No.
M60
6
14
Approx. 54 – 66
LAN-96
[CAN]
TROUBLE DIAGNOSIS
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of Intelligent Key unit.
2.
Check the resistance between the Intelligent Key unit harness connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the Intelligent Key unit branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the Intelligent Key unit. Refer to
.
OK or NG
OK
>>
●
Present error: Replace the Intelligent Key unit. Refer to
BL-123, "Removal and Installation of
●
Past error: Error was detected in the Intelligent Key unit branch line.
NG
>> Repair the power supply and the ground circuit.
Unified Meter and A/C Amp. Branch Line Circuit
NKS004GG
INSPECTION PROCEDURE
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 unified meter and A/C amp. for damage, bend and loose con-
nection (unit side and connector side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of unified meter and A/C amp.
2.
Check the resistance between the unified meter and A/C amp. harness connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the unified meter and A/C amp. branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the unified meter and A/C amp. Refer to
ply and Ground Circuit Inspection"
.
OK or NG
OK
>>
●
Present error: Replace the unified meter and A/C amp. Refer to
tion of Unified Meter and A/C Amp."
●
Past error: Error was detected in the unified meter and A/C amp. branch line.
NG
>> Repair the power supply and the ground circuit.
Intelligent Key unit harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M32
38
37
Approx. 54 – 66
Unified meter and A/C amp. harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M65
56
72
Approx. 54 – 66
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