2014 NISSAN TEANA ignition

LAN
A-BAG BRANCH LINE CIRCUITLAN-195
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 8)]
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A-BAG BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461562
WARNING:
Always observe the following items fo r preventing accidental activation.
• Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
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 air bag diagnosis sensor unit for damage, bend and loose con-
nection (unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the main harness.
2.CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Check the air bag diagnosis sensor unit. Refer to SRC-40, "Work Flow"
.
Is the inspection result normal?
YES >> Replace the main harness.
NO >> Replace parts whose air bag system has a malfunction.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN-196
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 8)]
AV BRANCH LINE CIRCUIT
AV BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461563
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 AV c ontrol unit 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 AV control unit.
2. Check the resistance between the AV control unit harness connector terminals.
- With navigation system without BOSE audio system
- With navigation system and BOSE audio system
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the AV control unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AV control unit. Refer to the following.
• With navigation system without BOSE audio system: AV-270, "AV CONTROL UNIT : Diagnosis Procedure"
• With navigation system and BOSE audio system: AV-376, "AV CONTROL UNIT : Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the AV control unit. Refer to the following.
• With navigation system without BOSE audio system: AV-298, "Removal and Installation"
• With navigation system and BOSE audio system: AV-418, "Removal and Installation"
YES (Past error)>>Error was detected in the AV control unit branch line.
NO >> Repair the power supply and the ground circuit.
AV control unit harness connector Resistance (Ω)
Connector No. Terminal No.
M96 8 17 Approx. 54 – 66
AV control unit harness connector Resistance (Ω)
Connector No. Terminal No.
M151 8 17 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN
AVM BRANCH LINE CIRCUITLAN-197
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 8)]
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AVM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461564
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 ITS c ontrol unit 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 ITS control unit.
2. Check the resistance between the ITS control unit harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ITS control unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circui t of the ITS control unit. Refer to DAS-62, "Diagnosis Proce-
dure".
Is the inspection result normal?
YES (Present error)>>Replace the ITS control unit. Refer to DAS-68, "Removal and Installation".
YES (Past error)>>Error was detected in the ITS control unit branch line.
NO >> Repair the power supply and the ground circuit.
ITS control unit harness connector Resistance (Ω)
Connector No. Terminal No.
M58 27 7 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN-198
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 8)]
HVAC BRANCH LINE CIRCUIT
HVAC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461565
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 A/C auto amp. 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 A/C auto amp.
2. Check the resistance between the A/C auto amp. harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the A/C auto amp. branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circ uit of the A/C auto amp. Refer to HAC-78, "A/C AUTO AMP. :
Diagnosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the A/C auto amp. Refer to HAC-102, "Removal and Installation".
YES (Past error)>>Error was detect ed in the A/C auto amp. branch line.
NO >> Repair the power supply and the ground circuit.
A/C auto amp. harness connector Resistance (Ω)
Connector No. Terminal No.
M152 1 21 Approx. 54 – 66
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN
BCM BRANCH LINE CIRCUITLAN-199
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 8)]
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BCM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000009461566
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 BC M 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 BCM.
2. Check the resistance between the BCM harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the BCM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to BCS-74, "Diagnosis Procedure"
.
Is the inspection result normal?
YES (Present error)>>Replace the BCM. Refer to BCS-80, "Removal and Installation".
YES (Past error)>>Error was det ected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
BCM harness connector Resistance (Ω)
Connector No. Terminal No.
M18 60 59 Approx. 108 – 132
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN-200
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 8)]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000009461567
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on CAN communication system.
4. Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (SHORT CIRCUIT)
Check the continuity between t he data link connector terminals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check the harness and repair the root cause.
3.CHECK HARNESS CONTI NUITY (SHORT CIRCUIT)
Check the continuity between the data link connector and the ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Check the harness and repair the root cause.
4.CHECK ECM AND BCM TERMINATION CIRCUIT
1. Remove the ECM and the BCM.
2. Check the resistance between the ECM terminals.
- QR engine models
- VQ engine models
3. Check the resistance between the BCM terminals.
Data link connector Continuity
Connector No. Terminal No.
M22 6 14 Not existed
Data link connector
GroundContinuity
Connector No. Terminal No.
M22 6 Not existed
14 Not existed
ECM Resistance (Ω)
Te r m i n a l N o .
100 99 Approx. 108 – 132
ECM Resistance (Ω)
Te r m i n a l N o .
114 113 Approx. 108 – 132
BCM Resistance (Ω)
Te r m i n a l N o .
60 59 Approx. 108 – 132
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

LAN
CAN COMMUNICATION CIRCUITLAN-201
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 8)]
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Is the measurement value
within the specification?
YES >> GO TO 5.
NO >> Replace the ECM and/or the BCM.
5.CHECK SYMPTOM
Connect all the connectors. Check if the symptoms descr ibed 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 cabl e from the negative terminal.
3. Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and BCM 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.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

PRECAUTIONSLU-3
< PRECAUTION > [QR25DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951682
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Liquid GasketINFOID:0000000009461023
REMOVAL OF LIQUID GASKET
• After removing the bolts and nuts, separate the mating surface and
remove the liquid gasket using Tool (A).
CAUTION:
Be careful not to damage the mating surfaces.
• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied. Use a
plastic hammer to slide (2) the cutter by tapping on the side.
CAUTION:
Do not damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the gasket application surface and the mating surface.
• Remove the liquid gasket completely from the groove of the
gasket application surface, mounting bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign
materials.
3. Attach the liquid gasket tube to the tube presser. Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
Tool Number (A): KV10111100 (J-37228)
AWBIA1249GB
PBIC0003E
Revision: November 20132014 Altima NAM