Nissan Maxima. Manual — part 823
LAN-104
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis Procedure
INFOID:0000000009990337
1.
CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on CAN communication system.
4. Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair the root cause.
3.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector and the ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Check the harness and repair the root cause.
4.
CHECK ECM AND IPDM E/R TERMINATION CIRCUIT
1. Remove the ECM and the IPDM E/R.
2. Check the resistance between the ECM terminals.
3. Check the resistance between the IPDM E/R terminals.
Is the measurement value within the specification?
YES
>> GO TO 5.
NO
>> Replace the ECM and/or the IPDM E/R.
5.
CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced.
Data link connector
Continuity
Connector No.
Terminal No.
M22
6
14
Not existed
Data link connector
Ground
Continuity
Connector No.
Terminal No.
M22
6
Not existed
14
Not existed
ECM
Resistance (
Ω)
Terminal No.
98
97
Approx. 108 – 132
IPDM E/R
Resistance (
Ω)
Terminal No.
40
39
Approx. 108 – 132
LKIA0037E
LAN
CAN COMMUNICATION CIRCUIT
LAN-105
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Inspection result
Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is
detected.
6.
CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.
4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.
LAN-106
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 5)]
MAIN LINE BETWEEN ADP AND DLC CIRCUIT
DTC/CIRCUIT DIAGNOSIS
MAIN LINE BETWEEN ADP AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000009990339
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 B1
-
Harness connector M6
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.
-
Harness connectors B208 and B32
-
Harness connectors B1 and M6
2. Check the continuity between the harness connectors.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the harness connectors B32 and B1.
3.
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 CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the driver seat control unit and the data link
connector.
NO
>> Repair the main line between the harness connector M6 and the data link connector.
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
B32
9
B1
15J
Existed
10
16J
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M6
15J
M22
6
Existed
16J
14
Existed
LAN
MAIN LINE BETWEEN DLC AND HVAC CIRCUIT
LAN-107
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 5)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN DLC AND HVAC CIRCUIT
Diagnosis Procedure
INFOID:0000000009990340
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
-
A/C auto amp.
4. Check the continuity between the data link connector and the A/C auto amp. harness connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the A/C auto
amp.
NO
>> Repair the main line between the data link connector and the A/C auto amp.
Data link connector
A/C auto amp. harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M22
6
M37
1
Existed
14
2
Existed
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