Nissan Cube. Instruction — part 643
LAN
CAN COMMUNICATION SYSTEM
LAN-29
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
JRMWE7834GB
LAN-30
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MALFUNCTION AREA CHART
MALFUNCTION AREA CHART
Main Line
INFOID:0000000009949493
Branch Line
INFOID:0000000009949494
Short Circuit
INFOID:0000000009949495
Malfunction area
Reference
Main line between IPDM E/R and data link connector
Malfunction area
Reference
ECM branch line circuit
ABS actuator and electric unit (control unit) branch line circuit
IPDM E/R branch line circuit
TCM branch line circuit
Air bag diagnosis sensor unit branch line circuit
Data link connector branch line circuit
EPS control unit branch line circuit
Combination meter branch line circuit
Steering angle sensor branch line circuit
BCM branch line circuit
Malfunction area
Reference
CAN communication circuit
LAN
MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT
LAN-31
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000009949496
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 E105
-
Harness connector M77
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.
-
IPDM E/R
-
Harness connectors E105 and M77
2.
Check the continuity between the IPDM E/R harness connector and the harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the IPDM E/R and the harness connector E105.
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 IPDM E/R and the data link connector.
NO
>> Repair the main line between the harness connector M77 and the data link connector.
IPDM E/R harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E13
27
E105
81
Existed
26
80
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M77
81
M4
6
Existed
80
14
Existed
LAN-32
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009949497
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 ECM 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 ECM.
2.
Check the resistance between the ECM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the ECM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to
EC-16, "ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement"
.
YES (Past error)>>Error was detected in the ECM branch line.
NO
>> Repair the power supply and the ground circuit.
ECM harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E16
84
83
Approx. 108 – 132
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