Nissan Pathfinder. Manual — part 778
LAN
MAIN LINE BETWEEN ADP AND PWBD CIRCUIT
LAN-65
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN ADP AND PWBD CIRCUIT
Diagnosis Procedure
INFOID:0000000009174956
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 (Models without around view monitor)
-
CAN gateway (Models with around view monitor)
-
Harness connector B54 and B200
-
Automatic back door control module
4. Check the continuity between the harness connector and the automatic back door control module 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 driver seat control unit and the automatic
back door control module.
NO
>> Repair the main line between the harness connector B54 and the automatic back door control
module.
Harness connector
Automatic back door control module
harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
B54
1
B55
24
Existed
2
12
Existed
LAN-66
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
MAIN LINE BETWEEN DLC AND CGW CIRCUIT
MAIN LINE BETWEEN DLC AND CGW CIRCUIT
Diagnosis Procedure
INFOID:0000000009174957
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
-
CAN gateway
4. Check the continuity between the data link connector and the CAN gateway 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 CAN gate-
way.
NO
>> Repair the main line between the data link connector and the CAN gateway.
Data link connector
CAN gateway harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M22
6
M5
1
Existed
14
7
Existed
LAN
ECM BRANCH LINE CIRCUIT
LAN-67
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009174958
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
LAN-68
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
IPDM-E BRANCH LINE CIRCUIT
IPDM-E BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009174959
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 IPDM E/R 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 IPDM E/R.
2. Check the resistance between the IPDM E/R harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the IPDM E/R branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the IPDM E/R. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the IPDM E/R. Refer to
PCS-32, "Removal and Installation"
YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO
>> Repair the power supply and the ground circuit.
IPDM E/R harness connector
Resistance (
Ω)
Connector No.
Terminal No.
E119
29
28
Approx. 54 – 66
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