LAN
EPS BRANCH LINE CIRCUITLAN-85
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 2)]
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EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461458
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN-102
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 3)]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461474
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 power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN-120
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 4)]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461491
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 power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN-138
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 5)]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461508
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 power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN-154
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 6)]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461523
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 power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN
EPS BRANCH LINE CIRCUITLAN-171
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 7)]
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EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461539
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
LAN
EPS BRANCH LINE CIRCUITLAN-189
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 8)]
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EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461556
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the power steering control module 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 power steering control module.
2. Check the resistance between the power steer ing control module harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Power steering control module branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the power steering control module. Refer to STC-23, "Diag-
nosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the power steering oil pump assembly. Refer to ST-38, "Removal and Instal-
lation".
YES (Past error)>>Error was detected in t he power steering control module branch line.
NO >> Repair the power supply and the ground circuit.
Power steering control module harness connector Resistance (Ω)
Connector No. Terminal No.
E59 8 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
ENGINE OILLU-9
< PERIODIC MAINTENANCE > [QR25DE]
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PERIODIC MAINTENANCE
ENGINE OIL
InspectionINFOID:0000000009461028
OIL LEVEL
• Before starting the engine, check the oil level. If t
he engine is already started, stop it and allow 10 minutes
before checking.
• Check that the oil level is within the range (A) on the oil level
gauge.
• If it is out of range, add oil as necessary.
ENGINE OIL APPEARANCE
• Check engine oil for white milky appearance or excessive contamination.
• If engine oil becomes milky, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
OIL LEAKAGE
Check for oil leakage around the following areas:
•Oil pan
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Valve timing control cover and valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seal (front and rear)
OIL PRESSURE CHECK
WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• Put the CVT shift selector in the Park "P" position.
1. Check engine oil level. Refer to OIL LEVEL.
2. Remove fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Exploded View"
.
3. Disconnect oil pressure switch harness connector at oil pressure switch. Remove oil pressure switch and install Tools.
CAUTION:
Do not drop or shock oil pressure switch.
4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load, using Tool. NOTE:
JPBIA1497ZZ
Tool numbers : ST25051001 (J-25695-1)
: ST25052000 (J-25695-2)
WBIA0571E
Revision: November 20132014 Altima NAM