Infiniti M35/M45 Y50. Manual — part 1104

TROUBLE DIAGNOSIS

SRS-31

C

D

E

F

G

I

J

K

L

M

A

B

SRS

ASSIST A/B MODULE
[OPEN]
[B1065] [B1070]

●

Front passenger 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 front passenger air bag module.

ASSIST A/B MODULE
[VB-SHORT]
[B1066] [B1071]

●

Front passenger air bag module circuit is shorted to a power
supply circuit.

ASSIST A/B MODULE
[GND-SHORT]
[B1067] [B1072]

●

Front passenger air bag module circuit is shorted to ground.

ASSIST A/B MODULE
[SHORT]
[B1068] [B1073]

●

Front passenger air bag module circuit is shorted between lines.

CRASH ZONE SEN
[UNIT FAIL]
[B1033]
[B1034]
CRASH ZONE SEN
[COMM FAIL]
[B1035]
CRASH ZONE SEN
[UNMATCH]
[B1036]

●

Crash zone 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 crash zone sensor and diag-
nosis sensor unit.

SIDE MODULE LH
[OPEN]
[B1134]

●

Front LH side 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 air bag module.

SIDE MODULE LH
[VB-SHORT]
[B1135]

●

Front LH side air bag module circuit is shorted to a power sup-
ply circuit.

SIDE MODULE LH
[GND-SHORT]
[B1136]

●

Front LH side air bag module circuit is shorted to ground.

SIDE MODULE LH
[SHORT]
[B1137]

●

Front LH side air bag module circuit is shorted between lines.

SIDE MODULE RH
[OPEN]
[B1129]

●

Front RH side 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 air bag module.

SIDE MODULE RH
[VB-SHORT]
[B1130]

●

Front RH side air bag module circuit is shorted to a power sup-
ply circuit.

SIDE MODULE RH
[GND-SHORT]
[B1131]

●

Front RH side air bag module circuit is shorted to ground.

SIDE MODULE RH
[SHORT]
[B1132]

●

Front RH side air bag module circuit is shorted between lines.

SATELLITE SENS LH
[UNIT FAIL]
[B1118]
[B1119]
SATELLITE SENS LH
[COMM FAIL]
[B1120]
SATELLITE SENS LH
[UNMATCH]
[B1121]

●

LH 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 LH side air bag (Satellite) sen-
sor.

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

SRS-32

TROUBLE DIAGNOSIS

SATELLITE SENS RH
[UNIT FAIL]
[B1113]
[B1114]
SATELLITE SENS RH
[COMM FAIL]
[B1115]
SATELLITE SENS RH
[UNMATCH]
[B1116]

●

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

Explanation

Repair order

“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS

SRS-33

C

D

E

F

G

I

J

K

L

M

A

B

SRS

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]
[B1106-B1111]
[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

Explanation

Repair order

“Recheck SRS at each replacement”

SRS-34

TROUBLE DIAGNOSIS

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

Explanation

Repair order

“Recheck SRS at each replacement”