Page 1594 of 3115
H01450
Airbag Sensor Assembly
L-W VUPL
SSL+
ESL
SSL-4
3
2 116
17
18
20 GR-LC25 S11
Side and Curtain Shield
Airbag Sensor Assembly LH
VUPL
SSL+
ESL
SSL- P-L
LG-B(*1)
(*1)
(*1)
(*1)
*1: w/ Side AirbagC25
C25
C25
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-813
1006 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1141/33 Side and Curtain Shield Airbag Sensor
Assembly LH Malfunction
CIRCUIT DESCRIPTION
The side and curtain shield airbag sensor assembly LH consists of the safing sensor, diagnosis circuit and
lateral deceleration sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1141/33 is recorded when occurrence of a malfunction in the side and curtain shield airbag sensor
assembly LH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1141/33Side and curtain shield airbag sensor assembly LH mal-
functionSide and curtain shield airbag sensor assembly LH
Floor No. 1 wire
Airbag sensor assembly
HINT:
DTC B1141/33 is indicated only for the vehicle equipped with the side airbag.
WIRING DIAGRAM
DIB3U-01
Page 1600 of 3115
H05148
Airbag Sensor Assembly A16
Front Airbag Sensor RH
+SR
-SR C269
20 B-W
BR-W IT1
1 2
B-W
BR-W 2
1 +SR
-SRIT1 BR-W 1
EA1B-W
EA12
C26
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-819
1012 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1148/36 Front Airbag Sensor RH Malfunction
CIRCUIT DESCRIPTION
The front airbag sensor RH circuit consists of the diagnosis circuit and frontal deceleration sensor, etc.
If receives signals from the frontal deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1148/36 is recorded when occurrence of a malfunction in the front airbag sensor RH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1148/36Front airbag sensor RH malfunction
Front airbag sensor RH
Airbag sensor assembly
Dash wire
Engine room No. 2 wire
Engine room main wire
HINT:
DTC B1148/36 is indicated only for the vehicle equipped with the side airbag and without the side airbag
(dual stage airbag).
WIRING DIAGRAM
DIB3V-01
Page 1609 of 3115
H05149
Airbag Sensor Assembly A21
Front Airbag Sensor LH
+SL
-SL 15
26 2
1 +SL
-SL
C26 W-R
BRBR W-R
IB1
IB11 2
C26 W-R
EF11
EF12
BR DI-828
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1021 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1149/37 Front Airbag Sensor LH Malfunction
CIRCUIT DESCRIPTION
The front airbag sensor LH circuit consists of the diagnosis circuit and frontal deceleration sensor, etc.
If receives signals from the frontal deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1149/37 is recorded when malfunction is detected in the front airbag sensor LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1149/37Front airbag sensor LH malfunction
Front airbag sensor LH
Airbag sensor assembly
Dash wire
Engine room No. 2 wire
Engine room main wire
HINT:
DTC B1149/37 is indicated only for the vehicle equipped with the side airbag and without the side airbag
(dual stage airbag).
WIRING DIAGRAM
DIB3W-01
Page 1617 of 3115
H21794
S17 Seat Position Sensor
Airbag Sensor Assembly
LSP-
LSP+ C253
BM2
L-RR
C25
C25 C25 R
L-R
BM22
1(*1) (*2)
(*1) (*2)8
4
3
*1: w/ Side Airbag
*2: w/o Side Airbag 1
2 DI-836
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1029 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1153/25 Seat Position Sensor Assembly Mal-
function
CIRCUIT DESCRIPTION
The seat position sensor circuit consists of the airbag sensor assembly and the seat position sensor assem-
bly.
For details of the function of each components, see OPERATION on page RS-3.
B1153/25 is recorded when a malfunction is detected in the seat position sensor circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1153/25Seat position sensor assembly malfunction
Seat position sensor assembly
Airbag sensor assembly
Floor No. 1 wire
Front seat wire LH
HINT:
DTC B1153/25 is indicated only for the vehicle equipped with the side airbag and without the side airbag
(dual stage airbag).
WIRING DIAGRAM
DIB3X-01
Page 1625 of 3115
H01450
S14
Curtain Shield Airbag Sensor Assembly RHAirbag Sensor Assembly
GR-R
L-B L-WLG-B
CSR- ESCR
CSR+
VUCR
4 3 2 1
4 20
18
19CSR- ESCR
CSR+
VUCR C27
(*1)
(*1)
(*1)
(*1)
*1: w/ Side AirbagC27
C27
C27 DI-844
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1037 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1154/38 Curtain Shield Airbag Sensor Assem-
bly RH Malfunction
CIRCUIT DESCRIPTION
The curtain shield airbag sensor assembly RH consists of the safing sensor, diagnosis circuit and lateral de-
celeration sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1154/38 is recorded when occurrence of a malfunction in the curtain shield airbag sensor assembly
RH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1154/38Curtain shield airbag sensor assembly RH malfunction
Curtain shield airbag sensor assembly RH
Floor No. 2 wire
Airbag sensor assembly
HINT:
DTC B1154/38 is indicated only for the vehicle equipped with the side airbag.
WIRING DIAGRAM
DIB3Y-01
Page 1631 of 3115
H01450
Airbag Sensor Assembly
L-Y VUCL
CSL+
ESCLCSL-4
3
2
114
15
131
GC25 S13
Curtain Shield Airbag Sensor Assembly LH
VUCL
CSL+
ESCL CSL- R
LG-B(*1)
(*1)
(*1)
(*1)
*1: w/ Side AirbagC25
C25
C25 DI-850
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1043 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1155/39 Curtain Shield Airbag Sensor Assem-
bly LH Malfunction
CIRCUIT DESCRIPTION
The curtain shield airbag sensor assembly LH consists of the safing sensor, diagnosis circuit and lateral de-
celeration sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1155/39 is recorded when occurrence of a malfunction in the curtain shield airbag sensor assembly
LH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1155/39Curtain shield airbag sensor assembly LH malfunction
Curtain shield airbag sensor assembly LH
Floor No. 1 wire
Airbag sensor assembly
HINT:
DTC B1155/39 is indicated only for the vehicle equipped with the side airbag.
WIRING DIAGRAM
DIB3Z-01
Page 1637 of 3115
H01454
C30
Curtain Shield Squib RHAirbag Sensor Assembly
ICR+
ICR- Y-V
Y-O 1
27 8
C27
(*1)
(*1)
*1: w/ Side AirbagC27 DI-856
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1049 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1160/83 Short in Curtain Shield Squib RH
Circuit
CIRCUIT DESCRIPTION
The curtain shield squib RH circuit consists of the airbag sensor assembly and the curtain shield airbag as-
sembly RH.
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B1110/83 is recorded when a short is detected in the curtain shield squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1110/83
Short in curtain shield squib RH circuit
Curtain shield squib RH malfunction
Airbag sensor assembly malfunctionCurtain shield airbag assembly RH (Curtain shield squib RH)
Airbag sensor assembly
Floor No. 2 wire
HINT:
DTC B1160/83 is indicated only for the vehicle equipped with the side airbag.
WIRING DIAGRAM
DI6PB-34
Page 1641 of 3115
H01019H16275H16616
Curtain Shield
Squib RHAirbag
Sensor
Assembly
(-)
(+)
ICR+ ICR-
Floor No. 2 Wire
DI-860
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1053 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1161/84 Open in Curtain Shield Squib RH
Circuit
CIRCUIT DESCRIPTION
The curtain shield squib RH circuit consists of the airbag sensor assembly and the curtain shield airbag as-
sembly RH.
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B1161/84 is recorded when an open is detected in the curtain shield squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1161/84
Open in curtain shield squib RH circuit
Curtain shield squib RH malfunction
Airbag sensor assembly malfunctionCurtain shield airbag assembly RH (Curtain shield squib RH)
Airbag sensor assembly
Floor No. 2 wire
HINT:
DTC B1161/84 is indicated only for the vehicle equipped with the side airbag.
WIRING DIAGRAM
See page DI-856.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-923).
2 Check floor No. 2 wire (curtain shield squib RH circuit).
CHECK:
Measure the resistance between ICR+ and ICR- of the floor
No. 2 wire connector on the curtain shield airbag assembly RH
(curtain shield squib RH) side.
OK:
Resistance: Below 1 W
NG Repair or replace floor No. 2 wire.
OK
DI6PC-21
