NISSAN TEANA 2008 Service Manual

SRC-138
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JMHIA0701GB
JMHIA0702GB
JMHIA0703GB

DIAGNOSIS SENSOR UNIT
SRC-139
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Wiring Diagram - SRS AIR BAG CONTROL SYSTEM -INFOID:0000000003814105
JCHWM0188GB

SRC-140
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JCHWM0189GB

DIAGNOSIS SENSOR UNIT
SRC-141
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JCHWM0190GB

SRC-142
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JCHWM0191GB

DIAGNOSIS SENSOR UNIT
SRC-143
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JCHWM0192GB

SRC-144
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JCHWM0193GB

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
SRC-145
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
Diagnosis ProcedureINFOID:0000000003814106
1.CHECK FRONT AIR BAG MODULE
Check the deployment of front air bag module.
Is air bag module deployed?
YES >> Refer to SR-6, "Exploded View" or SR-12, "Exploded View".
NO >> GO TO 2.
2.CHECK AIR BAG FUSE
Check the air bag fuse. Refer to PG-82, "
Fuse".
Is 10A fuse [No.2, located in fuse block (J/B)] normal?
YES >> GO TO 4.
NO >> Replace the air bag fuse and GO TO 3.
3.CHECK AIR BAG FUSE AGAIN
Turn ignition switch ON.
Check the air bag fuse. Refer to PG-82, "
Fuse".
Did the air bag fuse blow again?
YES >> Repair or replace related harness.
NO >> GO TO 4.
4.CHECK SELF DIAGNOSIS RESULT
Perform “AIR BAG” Self Diagnostic result.
Is DTC detected?
YES >> Repair or replace the malfunctioning parts.
NO >> Check the intermittent incident. Refer to GI-35, "
Intermittent Incident".

SRC-146
< SYMPTOM DIAGNOSIS >
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
Diagnosis ProcedureINFOID:0000000003814107
1.CHECK METER FUSE
Check the meter fuse. Refer to PG-82, "
Fuse".
Is 10A fuse [No.4, located in fuse block (J/B)] normal?
YES >> GO TO 3.
NO >> Replace the fuse GO TO 2.
2.CHECK METER FUSE AGAIN
Turn ignition switch ON.
Check the meter fuse. Refer to PG-82, "
Fuse".
Did the meter fuse blow again?
YES >> Repair or replace the related harness.
NO >> INSPECTION END
3.CHECK HARNESS CONNECTION
1. Check harness connection between air bag diagnosis sensor unit and combination meter.
2. Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.
Did air bag warning lamp turn ON?
YES >> Replace air bag diagnosis sensor unit. Refer to SR-22, "Exploded View".
NO >> Replace combination meter assembly. Refer to MWI-127, "
Exploded View".

PRECAUTIONS
SRC-147
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003814141
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
 Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
ServiceINFOID:0000000003814109
 Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
 Before servicing the SRS, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes.
For approximately 3 minutes after the battery negative terminal is removed, it is still possible for the air bag
and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3
minutes have elapsed.
 Diagnosis sensor unit must always be installed with their arrow marks “⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installa-
tion and replace as required.
 The spiral cable must be aligned in the neutral position since its rotations are limited. Do not turn steering
wheel and column after removal of steering gear.
 Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
 Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
 After air bag inflates, the front instrument panel assembly should be replaced if damaged.
 Always replace instrument panel pad following front passenger air bag deployment.