Nissan Altima L32. Instruction — part 876
LAN
CAN COMMUNICATION SYSTEM
LAN-33
< COMPONENT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
ABMIA0465GB
LAN-34
< COMPONENT DIAGNOSIS >
[CAN]
MALFUNCTION AREA CHART
MALFUNCTION AREA CHART
Main Line
INFOID:0000000004203867
Branch Line
INFOID:0000000004203868
Short Circuit
INFOID:0000000004203869
Malfunction Area
Reference
Main line between data link connector and ABS actuator and
electric unit (control unit)
Malfunction Area
Reference
ECM branch line circuit
Air bag diagnosis sensor unit branch line circuit
AV control unit branch line circuit
BCM branch line circuit
Data link connector branch line circuit
Combination meter branch line circuit
Steering angle sensor branch line circuit
ABS actuator and electric unit (control unit) branch line circuit
TCM branch line circuit
IPDM E/R branch line circuit
Malfunction Area
Reference
CAN communication circuit
LAN
MAIN LINE BETWEEN DLC AND ABS CIRCUIT
LAN-35
< COMPONENT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN DLC AND ABS CIRCUIT
Diagnosis Procedure
INFOID:0000000004203870
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 M1
-
Harness connector E30
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M1 and E30.
2. Check the continuity between the data link 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 M1.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)
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 ABS actuator
and electric unit (control unit).
NO
>> Repair the main line between the harness connector E30 and the ABS actuator and electric unit
(control unit).
Data link connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M22
6
M1
15G
Existed
14
8G
Existed
Harness connector
ABS actuator and electric unit (control unit)
harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E30
15G
E26
26
Existed
8G
15
Existed
LAN-36
< COMPONENT DIAGNOSIS >
[CAN]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000004203871
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).
-
ECM
-
Harness connector E30
-
Harness connector M1
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 the following.
• QR engine models for California:
• QR engine models expect for California:
• VQ engine models:
EC-1175, "Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to the following.
• QR engine models for California:
EC-27, "ADDITIONAL SERVICE WHEN REPLACING CON-
TROL UNIT : Special Repair Requirement"
• QR engine models except for California:
EC-563, "ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement"
• VQ engine models:
EC-1051, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT :
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.
E10
98
97
Approx. 108 – 132
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