Infiniti M35/M45 Y50. Manual — part 1102
TROUBLE DIAGNOSIS
SRS-23
C
D
E
F
G
I
J
K
L
M
A
B
SRS
DRIVER AIRBAG
MODULE
[OPEN]
[B1049] [B1054]
●
Driver air bag module circuit is open (including the spiral cable).
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the driver air bag module. .)
4. Replace the spiral cable.
5. Replace the diagnosis sensor unit.
6. Replace the related harness.
DRIVER AIRBAG
MODULE
[VB-SHORT]
[B1050] [B1055]
●
Driver air bag module circuit is shorted to a power supply circuit
(including the spiral cable).
DRIVER AIRBAG
MODULE
[GND-SHORT]
[B1051] [B1056]
●
Driver air bag module circuit is shorted to ground (including the
spiral cable).
DRIVER AIRBAG
MODULE
[SHORT]
[B1052] [B1057]
●
Driver air bag module circuit is shorted between lines.
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. Replace the front passenger air bag
module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the crash zone sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the front LH seatback
assembly (front LH side air bag
module).
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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.
Diagnostic item
Explanation
Repair order
“Recheck SRS at each replacement”
SRS-24
TROUBLE DIAGNOSIS
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. Replace the front RH seatback
assembly (front RH side air bag
module).
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the LH side air bag (Satel-
lite) sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the RH side air bag (Satel-
lite) sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the front LH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Replace the front RH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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.
Diagnostic item
Explanation
Repair order
“Recheck SRS at each replacement”
TROUBLE DIAGNOSIS
SRS-25
C
D
E
F
G
I
J
K
L
M
A
B
SRS
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. Replace the LH side curtain air bag
module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
CURTAIN MODULE LH
[VB-SHORT]
[B1151]
●
LH side curtain air bag module circuit is shorted to some power
supply 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.
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. Replace the RH side curtain air bag
module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
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. Visuary check the wiring harness
connection.
2. 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, 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.
Diagnostic item
Explanation
Repair order
“Recheck SRS at each replacement”
SRS-26
TROUBLE DIAGNOSIS
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
.
SIDE COLLISION
DETECTION
[B1210]
●
Side and curtain air bag is deployed.
●
Go to
Diagnostic item
Explanation
Repair order
“Recheck SRS at each replacement”
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