INFINITI M35 2006 Factory Service Manual

SRS-30
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
PRE-TEN FRONT RH
[OPEN]Front RH pre-tensioner circuit is open.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and front RH seat belt. PRE-TEN FRONT RH
[VB-SHORT]
Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]
Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]
Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]
LH side curtain air bag module circuit is open.
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and LH side curtain air bag module. CURTAIN MODULE LH
[VB-SHORT]
LH side curtain air bag module circuit is shorted to a power sup-
ply circuits.
CURTAIN MODULE LH
[GND-SHORT]
LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]
LH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE RH
[OPEN]
RH side curtain air bag module circuit is open.
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and RH side curtain air bag module. CURTAIN MODULE RH
[VB-SHORT]
RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]
RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]
RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT
Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the diagnosis sensor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
Occupant classification system control unit is malfunctioning. 1. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
OCCUPANT SENS C/U
[COMM FAIL]
Communication between the occupant classification system
control unit and air bag diagnosis sensor unit is interrupted,
diagnosis sensor unit is malfunction, or occupant classification
system control unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
OCCUPANT SENS
[UNIT FAIL]
Occupant classification sensor is malfunctioning.Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
BELT TENSION SENS
[UNIT FAIL]
Belt tension sensor circuit between belt tension sensor and
occupant classification system control unit, or diagnosis sensor
unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front seat belt (passenger
side) assembly.
4. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly. Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS
SRS-31
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SRS
Revision: 2006 January2006 M35/M45
PASS A/B INDCTR
CKTFront passenger air bag off indicator or related circuit is mal-
functioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator (The installation position is
an overhead consoul).
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
FRONTAL COLLISION
DETECTION
Seat belt pre-tensioner and front air bag are deployed.Go to SRS-50, "For Frontal Colli-
sion" .
SIDE COLLISION
DETECTION
Side and curtain air bag is deployed.Go to SRS-52, "For Side Collision" . Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”

SRS-32
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Trouble Diagnosis without CONSULT-IINHS00098
DIAGNOSTIC PROCEDURE 6
Inspecting SRS Malfunctioning Parts by Using “AIR BAG” Warning Lamp — Diagnosis Mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is detected in User mode.
1. Turn ignition switch ON.
2. After “AIR BAG” warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
3. Wait more than 3 seconds.
4. Repeat the steps 1 to 3 twice. (Perform three times in all.)
5. Turn ignition switch ON.
SRS is now in Diagnosis mode.
“AIR BAG” warning lamp operates in Diagnosis mode as follows:
WARNING LAMP FLASH CODE CHART
PHIA0532E
PHIA1233E
SHIA0028E

TROUBLE DIAGNOSIS
SRS-33
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SRS
Revision: 2006 January2006 M35/M45
PHIA1234E
SHIA0083E
PHIA1235E
PHIA1236E

SRS-34
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
SHIA0032E
SHIA0033E
PHIA1237E
PHIA1238E

TROUBLE DIAGNOSIS
SRS-35
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SRS
Revision: 2006 January2006 M35/M45
PHIA1240E
PHIA1241E
PHIA1242E
PHIA1243E

SRS-36
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OFFNHS00099
DIAGNOSTIC PROCEDURE 7
1. CHECK THE DEPLOYMENT OF AIR BAG MODULE
Is air bag module deployed?
YES or NO
YES >> Refer to SRS-50, "COLLISION DIAGNOSIS" .
NO >> GO TO 2.
2. CHECK THE AIR BAG FUSE
Check 10A fuse [No.13, located in fuse block (J/B)].
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK AIR BAG FUSE AGAIN
Replace “AIR BAG” fuse and turn ignition switch ON.
Does the
“AIR BAG” fuse blow again?
YES >> Repair or replace main harness.
NO >>INSPECTION END
4. CHECK DIAGNOSIS SENSOR UNIT
Connect CONSULT-II and touch “START”.
Is “AIR BAG” displayed on CONSULT-II?
YES or NO
YES >> GO TO 5.
NO >> Visually check the wiring harness connection of diagno-
sis sensor unit. If the harness connection check result is
OK, replace diagnosis sensor unit.
5. CHECK HARNESS CONNECTION
Is harness connection between warning lamp and diagnosis sensor unit OK?
OK or NG
OK >> Replace diagnosis sensor unit.
NG >> Connect “AIR BAG” warning lamp and diagnosis sensor unit connector properly. If “AIR BAG”
warning lamp still does not go off, replace harness.
BCIA0030E

TROUBLE DIAGNOSIS
SRS-37
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SRS
Revision: 2006 January2006 M35/M45
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn ONNHS0009A
DIAGNOSTIC PROCEDURE 8
1. CHECK METER FUSE
Check 10A fuse [No.14, located in fuse block (J/B)].
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK METER FUSE AGAIN
Replace 10A fuse [No.14, located in fuse block (J/B)] and turn ignition switch ON.
Does the meter fuse blow again?
YES >> Repair or replace the related harness.
NO >>INSPECTION END
3. CHECK HARNESS CONNECTION BETWEEN DIAGNOSIS SENSOR UNIT AND COMBINATION
METER
Disconnect diagnosis sensor unit connector and turn ignition switch ON.
Does “AIR BAG” warning lamp turn ON?
YES or NO
YES >> Replace diagnosis sensor unit.
NO >> Replace combination meter assembly.

SRS-38
DRIVER AIR BAG MODULE
Revision: 2006 January2006 M35/M45
DRIVER AIR BAG MODULEPFP:K8510
Removal and InstallationNHS0009C
REMOVAL
CAUTION:
Before servicing, turn ignition switch OFF, disconnect both battery terminal and wait at
least 3 minutes.
Do not use air tools or electric tools for servicing.
Always work from the side of air bag module. Do not work from the front of it.
Always place air bag module with pad side facing upward.
Do not use old TORX bolts after removal; replace with new bolts.
Do not make an impact to the air bag module by dropping etc. Replace the air bag module if it has
been dropped or sustained an impact.
1. Remove the side lids (left / right).
2. Remove the driver air bag module.
Using Tamper resistant TORX bit (T30), remove the TORX bolts (T30) at left and right.
Disconnect the harness connector with the driver air bag module rassed a bit.
NOTE:
For installing/removing driver air bag module connector,
insert thin screwdriver wrapped in tape into notch, lift lock
and remove connector.
Install connector with lock raised, and push lock into con-
nector.
After installing the connector, make sure that the lock is
pushed securely into it.
P H I A 1111 E
1. Driver air bag module 2. Steering switch 3. Screw
4. Spring 5. Bracket 6. Screw
7. Side lid (left/right)
TORX bolt (T30)
: 9.3 Nꞏm (0.95 kg–m, 82 in–lb)
PHIA0953J

DRIVER AIR BAG MODULE
SRS-39
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SRS
Revision: 2006 January2006 M35/M45
3. Remove the screws then remove the steering switch.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Fix the air bag module harness (shown as A in the figure) to
the harness fixing hook (shown as B in the figure).
Be careful not to damage the harness while installing.
Tighten the special bolts after exactly adjusting the centers of fixing holes on the air bag module
side and the steering wheel side. If the holes are misaligned, the bolt threads are damaged and the
module is not installed securely.
After the work is completed, make sure no system malfunction is detected by air bag warning
lamp.
In case that malfunction is detected by the air bag warning lamp, reset by the self-diagnosis func-
tion and delete the memory by CONSOULT–II.
In case that malunction is still detected after the above operation, peform self-diagnosis to repair
malfunctions. Refer to SRS-19, "
SRS Operation Check" .
PHIA0885J