2007 INFINITI M35 belt

SRS-26
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
BELT TENSION SENS
[UNIT FAIL]
[B1019]
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.
PASS A/B INDCTR
CKT
[B1023]

Front 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
[B1209]

Seat belt pre-tensioner and front air bag are deployed.
Go to SRS-54, "For Frontal Colli-
sion" .
SIDE COLLISION
DETECTION
[B1210]

Side and curtain air bag is deployed.
Go to SRS-56, "For Side Collision" . Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”

SRS-32
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
SATELLITE SENS RH
[UNIT FAIL]
[ B 111 3 ]
[ B 111 4 ]
SATELLITE SENS RH
[COMM FAIL]
[ B 111 5 ]
SATELLITE SENS RH
[UNMATCH]
[ B 111 6 ]
RH side air bag (Satellite) sensor 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 air bag (Satellite) sen-
sor.
PRE-TEN FRONT LH
[OPEN]
[B1086]

Front LH 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 LH seat belt. PRE-TEN FRONT LH
[VB-SHORT]
[B1087]

Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT LH
[GND-SHORT]
[B1088]

Front LH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT LH
[SHORT]
[B1089]

Front LH pre-tensioner circuit is shorted between lines.
PRE-TEN FRONT RH
[OPEN]
[B1081]

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]
[B1082]

Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]
[B1083]

Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]
[B1084]

Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]
[B1150]

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]
[B1151]

LH side curtain air bag module circuit is shorted to a power sup-
ply circuits.
CURTAIN MODULE LH
[GND-SHORT]
[B1152]

LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]
[B1153]

LH side curtain air bag module circuit is shorted between lines. Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS
SRS-33
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SRS
Revision: 2007 April2007 M35/M45
CURTAIN MODULE RH
[OPEN]
[B1145]
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]
[B1146]

RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]
[B1147]

RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]
[B1148]

RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT
[B1001-B1015]
[B1026-B1031]
[B1042-B1047]
[B1058-B1063]
[B1074-B1079]
[ B 11 0 6 - B 1111 ]
[B1122-B1127]
[B1138-B1143]
[B1202-B1207]

Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the diagnosis sensor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
[B1017]
[B1020]
[B1021]

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]
[B1022]

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]
[B1018]

Occupant classification sensor is malfunctioning.
Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
BELT TENSION SENS
[UNIT FAIL]
[B1019]

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”

SRS-34
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
PASS A/B INDCTR
CKT
[B1023]
Front 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
[B1209]

Seat belt pre-tensioner and front air bag are deployed.
Go to SRS-54, "For Frontal Colli-
sion" .
SIDE COLLISION
DETECTION
[B1210]

Side and curtain air bag is deployed.
Go to SRS-56, "For Side Collision" . Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS
SRS-41
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SRS
Revision: 2007 April2007 M35/M45
Trouble Diagnosis: Passenger Seatbelt Warning SystemNHS0009S
1. CHECK THE SYSTEM 1
Check seatbelt warning lamp function.
Seatbelt warning lamp turns ON in the following conditions.

Driver seatbelt is fastened.

Occupant is on passenger seat.

Passenger seatbelt is not fasten.
OK or NG
OK >> GO TO 2.
NG >> Check the followings.

Harness between air bag diagnosis sensor unit and combination meter.

Seatbelt buckle switch (passenger side) circuit.

Seatbelt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.
2. CHECK THE SYSTEM 2
Check seatbelt warning lamp function.
Seatbelt warning lamp turns OFF in the following conditions.

Driver seatbelt is fastened.

Occupant is on passenger seat.

Passenger seatbelt is fastened.
OK or NG
OK >> System is OK.
NG >> Check the followings.

Seatbelt buckle switch (passenger side) circuit.

Seatbelt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.

SRS-50
SIDE AIR BAG (SATELLITE) SENSOR
Revision: 2007 April2007 M35/M45
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationNHS0009H
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.

Do not use old fixing nuts after removal; replace with new nuts.

Do not make an impact to the side air bag (satellite) sensor by dropping etc. Replace the side air
bag (satellite) sensor if it has been dropped or sustained an impact.

Replace the satellite sensor of deployed SRS front side air bag and deployed SRS side curtain air
bag.
1. Remove the side air bag (Satellite) sensor.

Remove front seat belt. Refer to SB-29, "Removal and Installation of Front Seat Belt" .

Remove fixing nuts, then remove side air bag (Satellite) sen-
sor.

Disconnect the side air bag (Satellite) sensor harness con-
nector.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Be careful not to damage the satellite sensor harness.

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 CONSULT−ll.

In case that malfunction is still detected after the above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-20, "
SRS Operation Check" . Fixing nut
: 10.8 N·m (1.1 kg−m, 8 ft−lb)
PHIA0902J

FRONT SEAT BELT PRE-TENSIONER
SRS-51
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SRS
Revision: 2007 April2007 M35/M45
FRONT SEAT BELT PRE-TENSIONERPFP:86884
Removal and InstallationNHS0009I
For removal and installation procedures, refer to SB-29, "Removal and Installation of Front Seat Belt" .

SRS-52
DIAGNOSIS SENSOR UNIT
Revision: 2007 April2007 M35/M45
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationNHS0009J
REMOVAL
CAUTION:

Before servicing, turn ignition switch OFF, disconnect both battery terminal and wait at least 3
minutes.

Before disconnecting the air bag sensor unit harness connector, be sure to disconnect the each
harness connector of the air bag module and pre-tensioner seatbelt to prevent air bag deployment
by static electricity and pre-tensioner seatbelt operation.

Do not use air tools or electric tools for servicing.

Do not use old fixing bolts after removal; replace with new bolts.

Do not make an impact to the diagnosis sensor unit by dropping etc. Replace the diagnosis sen-
sor unit if it has been dropped or sustained an impact.

Replace the diagnosis sensor unit of deployed SRS air bag and deployed SRS front seat belt pre-
tensioner.
1. Remove the diagnosis sensor unit.

Disconnect each connector of all air bag modules and pre-tensioner seat belts.

Remove the center console assembly. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .

Disconnect diagnosis sensor unit harness connector.

Remove hex bolts and ground bolt, then remove the diagno-
sis sensor unit.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Be careful not to damage the diagnosis sensor harness.

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 CONSULT−ll.

In case that malfunction is still detected after the above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-20, "
SRS Operation Check" .
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the
vehicle as equipped.Hex bolts
: 24.5 N·m (2.5 kg−m, 18 ft−lb)
Ground bolt A
: 6.9 N·m (0.7kg−m, 61 in−lb)
PHIA0869J
Specification ECU DISCRIMINATED No.
2WD
AW DModels with driver and passenger air bags, seat belt pre-tensioner, side air bags and curtain air
bagsFA D 4 H