Nissan Qashqai (2007-2010). Manual — part 1706
LAN
CAN COMMUNICATION CIRCUIT
LAN-849
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 56)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
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.
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.
IPDM E/R
Resistance (
Ω
)
Terminal No.
28
29
Approx. 108 – 132
LAN-850
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 57)]
MAIN LINE BETWEEN ABS AND BCM CIRCUIT
COMPONENT DIAGNOSIS
MAIN LINE BETWEEN ABS AND BCM CIRCUIT
Diagnosis Procedure
INFOID:0000000001057219
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 (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.
-
ABS actuator and electric unit (control unit)
-
Harness connectors E105 and M77
2.
Check the continuity between the ABS actuator and electric unit (control unit) and the harness connector.
-
Models with ESP
-
Models with ABS
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the ABS actuator and electric unit (control unit) harness connector
and the harness connector E105.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of BCM.
2.
Check the continuity between the harness connector and the BCM 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 ABS actuator and electric unit (control
unit) and the BCM.
ABS actuator and electric unit (control unit)
harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E36
26
E105
52
Existed
15
51
Existed
ABS actuator and electric unit (control unit)
harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E34
26
E105
52
Existed
15
51
Existed
Harness connector
BCM harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M77
52
M65
19
Existed
51
20
Existed
LAN
MAIN LINE BETWEEN ABS AND BCM CIRCUIT
LAN-851
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 57)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
NO
>> Repair the main line between the harness connector M77 and the BCM.
LAN-852
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 57)]
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000001057222
INSPECTION PROCEDURE
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
-
BCM
4.
Check the continuity between the BCM 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 BCM and the data link connector.
NO
>> Repair the main line between the BCM and the data link connector.
BCM harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M65
19
M4
6
Existed
20
14
Existed
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