TOYOTA LAND CRUISER 1998 Factory Repair Manual
Page 1661 of 3115
AB0119H01017
H10600
H11647H16278H21149
Curtain Shield
Squib LH
Airbag
Sensor
Assembly
ICL+
CGTCDTC B1168/86
" u
ICL-
ON
DLC3Floor No. 1 Wire
DI-880
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1073 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait at least for 90 seconds.
(c) Connect the connector to the airbag sensor assembly.
(d) Using a service wire, connect ICL+ and ICL- of the floor
No. 1 wire connector on the curtain shield airbag assem-
bly LH ( curtain shield squib LH) side.
(e) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(b) Clear the DTC stored in memory (See page DI-692).
(c) Turn the ignition switch to LOCK, and wait at least for 10
seconds.
(d) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(e) Check the DTC (See page DI-692).
OK:
DTC B1168/86 is not output.
HINT:
Codes other than code B1168/86 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
Page 1662 of 3115
H11647H01018AB0119
H10600H13071
"uAirbag
Sensor
Assembly Curtain Shield
Squib LH
DTC B1168/86 ON
DLC3
TC
CG
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-881
1074 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check curtain shield squib LH.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait at least for 90 seconds.
(c) Connect the curtain shield airbag assembly LH (curtain
shield squib LH) connector.
(d) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(b) Clear the DTC stored in memory (See page DI-692).
(c) Turn the ignition switch to LOCK, and wait at least for 10
seconds.
(d) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(e) Check the DTC (See page DI-692).
OK:
DTC B1168/86 is not output.
HINT:
Codes other than code B1168/86 may be output at this time, but
they are not relevant to this check.
NG Replace curtain shield airbag assembly LH
(curtain shield squib LH).
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.
Page 1663 of 3115
H05146
Y-V
D2+ C2616Airbag Sensor Assembly
17
D2- Y-O 4
3
Spiral
Cable A28
D Squib (2nd step)
II4
II43 4
Y-V
Y-O
C26 DI-882
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1075 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1180/17 Short in D Squib (2nd step) Circuit
CIRCUIT DESCRIPTION
The D squib (2nd step) circuit consists of the airbag sensor assembly, the spiral cable and the steering wheel
pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B1180/17 is recorded when a short is detected in the D squib (2nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1180/17
Short in D squib (2nd step) circuit
D squib (2nd step) malfunction
Spiral cable malfunction
Airbag sensor assembly malfunctionSteering wheel pad (D squib (2nd step))
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
WIRING DIAGRAM
DIB40-01
Page 1664 of 3115
H19243H21259H21177
D Squib
(2nd step)
D2+
(-) (+) D2-
Airbag
Sensor
AssemblySpiral
Cable
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-883
1076 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-923).
2 Check connector.
CHECK:
Make sure that the black spiral cable connector is not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
NG Replace spiral cable.
OK
3 Check D squib (2nd step) circuit.
PREPARATION:
Release the airbag activation prevention mechanism built in the
connector on the airbag sensor assembly side between the air
bag sensor assembly and the steering wheel pad (D squib (2nd
step)) (See page DI-692).
CHECK:
Measure the resistance between D2+ and D2- of the black con-
nector on the steering wheel pad (D squib (2nd step)) side be-
tween the airbag sensor assembly and the steering wheel pad
(D squib (2nd step)).
OK:
Resistance: 1 MW or Higher
NG Go to step 6.
OK
Page 1665 of 3115
AB0119H10600
H21263
H21150
D Squib
(2nd step)
CG
TCON
DTC B1180/17
DLC3" uAirbag
Sensor
Assembly
Spiral
Cable
DI-884
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1077 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(b) Clear the DTC stored in memory (See page DI-692).
(c) Turn the ignition switch to LOCK, and wait at least for 10
seconds.
(d) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(e) Check the DTC (See page DI-692).
OK:
DTC B1180/17 is not output.
HINT:
Codes other than code B1180/17 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
Page 1666 of 3115
AB0119
H10600H21267
H21151
D Squib
(2nd step)
ON
DTC B1180/17
DLC3
" u
TC CGAirbag
Sensor
AssemblySpiral
Cable
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-885
1078 Author: Date:
2004 LAND CRUISER (RM1071U)
5 Check D squib (2nd step).
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait at least for 90 seconds.
(c) Connect the steering wheel pad (D squib (2nd step)) to
the spiral cable.
(d) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(b) Clear the DTC stored in memory (See page DI-692).
(c) Turn the ignition switch to LOCK, and wait at least for 10
seconds.
(d) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(e) Check the DTC (See page DI-692).
OK:
DTC B1180/17 is not output.
HINT:
Codes other than code B1180/17 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad
(D squib (2nd step)).
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.
Page 1667 of 3115
H19243H21268H21178
D Squib
(2nd step)
D2+ u"
D2-
(+) (-) Column Wire
Airbag
Sensor
AssemblySpiral
Cable
H16852H21269H21179
D2+ u"
D2-
(-)
(+) Column Wire
Dash Wire
D Squib
(2nd step)Airbag
Sensor
Assembly
Spiral
Cable
DI-886
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1079 Author: Date:
2004 LAND CRUISER (RM1071U)
6 Check spiral cable.
PREPARATION:
(a) Disconnect the spiral cable connector from the column
wire.
(b) Release the airbag activation prevention mechanism built
in the spiral cable connector on the airbag sensor assem-
bly side (See page DI-692).
CHECK:
Measure the resistance between D2+ and D2- of the black spi-
ral cable connector on the steering wheel pad (D squib (2nd
step)) side.
OK:
Resistance: 1 MW or Higher
NG Replace spiral cable.
OK
7 Check column wire.
PREPARATION:
Release the airbag activation prevention mechanism built in the
column wire connector on the airbag sensor assembly side
(See page DI-692).
CHECK:
Measure the resistance between D2+ and D2- of the column
wire connector on the spiral cable side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace column wire.
OK
Page 1668 of 3115
H16852H21760H21224
D Squib
(2nd step)
D2+
(-) (+)
D2-
Column WireDash Wire
Airbag
Sensor
AssemblySpiral
Cable
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-887
1080 Author: Date:
2004 LAND CRUISER (RM1071U)
8 Check dash wire.
PREPARATION:
Release the airbag activation prevention mechanism built in the
connector of the dash wire on the airbag sensor assembly side
(See page DI-692).
CHECK:
Measure the resistance between D2+ and D2- of the dash wire
connector on the column wire side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace dash wire.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.
Page 1669 of 3115
H19243H21259H21177
D Squib
(2nd step)
Airbag
Sensor
Assembly
D2+
(-) (+) D2-
Spiral
Cable
DI-888
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1081 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B1181/18 Open in D Squib (2nd step) Circuit
CIRCUIT DESCRIPTION
The D squib (2nd step) circuit consists of the airbag sensor assembly, the spiral cable and the steering wheel
pad. It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B1181/18 is recorded when an open is detected in the D squib (2nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1181/18
Open in D squib (2nd step) circuit
D squib (2nd step) malfunction
Spiral cable malfunction
Airbag sensor assembly malfunctionSteering wheel pad (D squib (2nd step))
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
WIRING DIAGRAM
See page DI-882.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-923).
2 Check D squib (2nd step) circuit.
CHECK:
Measure the resistance between D2+ and D2- of the black con-
nector on the steering wheel pad (D squib (2nd step)) side be-
tween the airbag sensor assembly and the steering wheel pad
(D squib (2nd step)).
OK:
Resistance: Below 1 W
NG Go to step 6.
OK
DIB41-01
Page 1670 of 3115
AB0119
H10600H19247H21272
H21152
D Squib
(2nd step)
ON
DTC B1181/18
DLC3
D2+D2-
TC CG
"uAirbag
Sensor
Assembly
Spiral
Cable
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-889
1082 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect D2+ and D2- of the black
connector on the steering wheel pad (D squib (2nd step))
side between the airbag sensor assembly and the steer-
ing wheel pad (D squib (2nd step)).
(c) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(b) Clear the DTC stored in memory (See page DI-692).
(c) Turn the ignition switch to LOCK, and wait at least for 10
seconds.
(d) Turn the ignition switch to ON, and wait at least for 10 se-
conds.
(e) Check the DTC (See page DI-692).
OK:
DTC B1181/18 is not output.
HINT:
Codes other than code B1181/18 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK