Nissan Frontier. Instruction — part 980
LAN-70
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MAIN LINE BETWEEN TCM AND HVAC CIRCUIT
Is the inspection result normal?
YES (Present error)>>Check the following items again.
• Decision of CAN system type.
• Not received CONSULT data (SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR).
• Procedure for detecting root cause.
YES (Past error)>>Error was detected in the main line between the TCM and the front air control.
NO
>> Repair the main line between the harness connector M31 and the front air control.
Harness connector
Front air control harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M31
32G
M59
37
Existed
31G
36
Existed
LAN
MAIN LINE BETWEEN TCM AND DLC CIRCUIT
LAN-71
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN TCM AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000010494873
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 (connector side
and harness side).
-
Harness connector F14
-
Harness connector E5
-
Harness connector E152
-
Harness connector M31
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
-
A/T assembly
-
Harness connectors F14 and E5
2. Check the continuity between the A/T assembly harness connector and the harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the data link connector and the harness connector F14.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors E152 and M31.
2. Check the continuity between the harness connectors.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the main line between the harness connector E5 and E152.
4.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.
Is the inspection result normal?
YES (Present error)>>Check the following items again.
• Decision of CAN system type.
• Not received CONSULT data (SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR).
A/T assembly harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
F9
3
F14
2
Existed
8
3
Existed
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E5
2
E152
32G
Existed
3
31G
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M31
32G
M22
6
Existed
31G
14
Existed
LAN-72
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MAIN LINE BETWEEN TCM AND DLC CIRCUIT
• Procedure for detecting root cause.
YES (Past error)>>Error was detected in the main line between the A/T assembly harness connector and the
data link connector.
NO
>> Repair the main line between the harness connector M31 and the data link connector.
LAN
MAIN LINE BETWEEN HVAC AND DLC CIRCUIT
LAN-73
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN HVAC AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000010242565
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness connectors.
-
ECM
-
Front air control
4. Check the continuity between the front air control harness connector and the data link connector.
-
With auto A/C models
-
With instruction A/C models
Is the inspection result normal?
YES (Present error)>>Check the following items again.
• Decision of CAN system type.
• Not received CONSULT data (SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR).
• Procedure for detecting root cause.
YES (Past error)>>Error was detected in the main line between the front air control and the data link connec-
tor.
NO
>> Repair the main line between the front air control and the data link connector.
Front air control
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M56
37
M22
6
Existed
36
14
Existed
Front air control
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M59
37
M22
6
Existed
36
14
Existed
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