Nissan Pathfinder. Manual — part 789
LAN
CAN GATEWAY
LAN-109
< REMOVAL AND INSTALLATION >
[CAN GATEWAY]
C
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REMOVAL AND INSTALLATION
CAN GATEWAY
Removal and Installation
INFOID:0000000009175003
CAUTION:
Before replacing CAN gateway, perform “Before Replace ECU” of “Read / Write Configuration” to save
or print current vehicle specification. Refer to
REMOVAL
1. Remove the AV control unit. Refer to
AV-611, "Removal and Installation"
2. Remove the screw from the bracket of the automatic drive
positioner control unit .
3. Position the automatic drive positioner control unit aside and
remove the CAN gateway from the bracket by sliding it as
shown.
4. Disconnect the harness connector from the CAN gateway and remove the CAN gateway.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
To prevent malfunction, be sure to perform “After Replace ECU” of “Read / Write Configuration” or
“Manual Configuration” when replacing CAN gateway. Refer to
.
ALMIA0615ZZ
ALMIA0569ZZ
LAN-110
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
MAIN LINE BETWEEN IPDM-E AND ABS CIRCUIT
DTC/CIRCUIT DIAGNOSIS
MAIN LINE BETWEEN IPDM-E AND ABS CIRCUIT
Diagnosis Procedure
INFOID:0000000009175004
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
-
IPDM E/R
-
ABS actuator and electric unit (control unit)
4. Check the continuity between the IPDM E/R 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 IPDM E/R and the ABS actuator and
electric unit (control unit).
NO
>> Repair the main line between the IPDM E/R and the ABS actuator and electric unit (control unit).
IPDM E/R harness connector
ABS actuator and electric unit (control unit)
harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E119
29
E125
25
Existed
28
15
Existed
LAN
MAIN LINE BETWEEN ABS AND DLC CIRCUIT
LAN-111
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
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MAIN LINE BETWEEN ABS AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000009175005
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 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.
-
ABS actuator and electric unit (control unit)
-
Harness connectors E152 and M31.
2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the
harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the ABS actuator and electric unit (control unit) and the harness
connector E152.
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 ABS actuator and electric unit (control
unit) and the data link connector.
NO
>> Repair the main line between the harness connector M31 and the data link connector.
ABS actuator and electric unit (control unit) harness
connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E125
25
E152
36G
Existed
15
35G
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M31
36G
M22
6
Existed
35G
14
Existed
LAN-112
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009175006
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-466, "Removal and Installation"
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
114
113
Approx. 108 – 132
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