TOYOTA LAND CRUISER 1998 Factory Repair Manual
Page 1551 of 3115
H01018AB0119H01072H10600H13118
"uAirbag
Sensor
Assembly Side Squib LH
DTC B0118/46 ON
DLC3
TC CG
DI-770
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
963 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check side 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 side airbag assembly LH (side 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 B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag assembly LH
(side 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 1552 of 3115
H21792
B5 Buckle Switch LH
Airbag Sensor Assembly
BM2
1G19
C25LBE+
C2511
G
(*1) (*2) 3
*1: w/ Side Airbag
*2: w/o Side Airbag
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-771
964 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B0126/B0127/27 Seat Belt Buckle Switch LH
Malfunction
CIRCUIT DESCRIPTION
The seat belt buckle switch LH malfunction circuit consists of the airbag sensor assembly and the front seat
inner belt LH (seat belt buckle switch LH).
For details of the function of each component, see OPERATION on page RS-3.
DTC B0126/B0127/27 is recorded when a malfunction is detected in the seat belt buckle switch LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0126/B0127/27Seat belt buckle switch LH circuit malfunction
Front seat inner belt LH (Seat belt buckle switch LH)
Airbag sensor assembly
Floor No. 1 wire
Front seat wire LH
WIRING DIAGRAM
DIB3R-01
Page 1553 of 3115
H20477H16861H21676
Seat Belt Buckle
Switch LHAirbag
Sensor
Assembly
w/o Side Airbag:
Airbag Sensor
Assemblyw/ Side Airbag:
Airbag Sensor
Assembly
LBE+
(+) (-)
(+) (-)LBE+
H20565AB0119H16860H21677
Seat Belt Buckle
Switch LHAirbag
Sensor
Assembly
w/o Side Airbag:
Airbag Sensor
Assemblyw/ Side Airbag:
Airbag Sensor
Assembly
LBE+
(+) (-)
(+) (-)LBE+
ON
DI-772
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
965 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-692).
2 Check wire harness (to ground).
CHECK:
Measure the resistance between the body ground and LBE+ of
the connector on the airbag sensor assembly side between the
front seat inner belt LH (seat belt buckle switch LH) and the air-
bag sensor assembly.
OK:
Resistance: 1 MW or Higher
NG Go to step 7.
OK
3 Check wire harness (to B+).
PREPARATION:
Connect the negative (-) terminal cable to the battery, and wait
at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the body ground and LBE+
of the connector on the airbag sensor assembly side be-
tween the front seat inner belt LH (seat belt buckle switch
LH) and the airbag sensor assembly.
OK:
Voltage: Below 1 V
NG Go to step 8.
OK
Page 1554 of 3115
H20477H16861H21678
Seat Belt Buckle
Switch LHAirbag
Sensor
Assembly
w/ Side Airbag:
Airbag Sensor
Assembly w/o Side Airbag:
Airbag Sensor
Assembly
LBE+
(+)(-)
(+) (-)LBE+
H20477H16861H21678
Airbag
Sensor
Assembly
w/ Side Airbag:
Airbag Sensor
Assemblyw/o Side Airbag:
Airbag Sensor
Assembly
LBE+
(+)(-)
(+) (-)LBE+
Seat Belt
Buckle
Switch LH
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-773
966 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check front seat inner belt LH.
PREPARATION:
(a) Connect the connector of the front seat inner belt LH (seat
belt buckle switch LH).
(b) Unlock the seat belt for the driver's seat.
CHECK:
Measure the resistance between the body ground and LBE+ of
the connector on the airbag sensor assembly side between the
front seat inner belt LH (seat belt buckle switch LH) and the air-
bag sensor assembly.
OK:
Resistance: 1 kW - 1.6 kW
NG Replace front seat inner belt LH.
OK
5 Check front seat inner belt LH.
PREPARATION:
Lock the seat belt for the driver's seat.
CHECK:
Measure the resistance between the body ground and LBE+ of
the connector on the airbag sensor assembly side between the
front seat inner belt LH (seat belt buckle switch LH) and the air-
bag sensor assembly.
OK:
Resistance: 100 W - 500 W
NG Replace front seat inner belt LH.
OK
Page 1555 of 3115
H16823H10600AB0119H21679
Seat Belt Buckle
Switch LHAirbag
Sensor
Assembly
ON
DTC B0126/B0127/27
DLC3
TC
CG
" u
DI-774
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
967 Author: Date:
2004 LAND CRUISER (RM1071U)
6 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) 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 B0126/B0127/27 is not output.
HINT:
Codes other than code B0126/B0127/27 may be output at this
time, but they are not relevant to this check.
NG Replace airbag sensor assembly.
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 1556 of 3115
H21271H21569H21680
Seat Belt
Buckle
Switch LHAirbag
Sensor
Assembly
Front Seat
Wire LH
Floor No. 1 Wire
u "
LBE+
(+)
(-)
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-775
968 Author: Date:
2004 LAND CRUISER (RM1071U)
7 Check front seat wire LH (to ground).
PREPARATION:
Disconnect the front seat wire LH connector from the floor No.
1 wire.
CHECK:
Measure the resistance between the body ground and LBE+ of
the front seat wire LH connector on the floor No. 1 wire side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace front seat wire LH.
OK
Repair or replace floor No. 1 wire.
Page 1557 of 3115
H21271H21570AB0119H21681
Seat Belt
Buckle
Switch LH
Front Seat
Wire LH
Floor No. 1 Wire
u "
Airbag
Sensor
Assembly
LBE+
(+)
(-)ON
DI-776
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
969 Author: Date:
2004 LAND CRUISER (RM1071U)
8 Check front seat wire LH (to B+).
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) Disconnect the front seat wire LH connector from the floor
No. 1 wire.
(d) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON.
(b) Measure the voltage between the body ground and LBE+
of the front seat wire LH connector on the floor No. 1 wire
side.
OK:
Voltage: Below 1 V
NG Repair or replace front seat wire LH.
OK
Repair or replace floor No. 1 wire.
Page 1558 of 3115
H21793
P22
P/T Squib RHAirbag Sensor Assembly
PR+
PR- 1
2109
C27 Y-B
YC27
C27 C275
6
(*2) (*1)(*2) (*1)
*1: w/ Side Airbag
*2: w/o Side Airbag
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-777
970 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B0130/63 Short in P/T Squib RH Circuit
CIRCUIT DESCRIPTION
The P/T squib RH circuit consists of the airbag sensor assembly and the seat belt pretensioner 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 B0130/63 is recorded when a short is detected in the P/T squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0130/63
Short in P/T squib RH circuit
P/T squib RH malfunction
Airbag sensor assembly malfunctionSeat belt pretensioner RH (P/T squib RH)
Airbag sensor assembly
Floor No. 2 wire
WIRING DIAGRAM
DI6PJ-26
Page 1559 of 3115
H01019H02141H02203
P/T Squib RHAirbag
Sensor
Assembly
PR+
PR-
(+)(-) Floor No. 2 Wire
DI-778
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
971 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-923).
2 Check floor No. 2 wire (P/T squib RH circuit).
PREPARATION:
Release the airbag activation prevention mechanism built in the
connector of the floor No. 2 wire on the airbag sensor assembly
side (See page DI-692).
CHECK:
Measure the resistance between PR+ and PR- of the floor No.
2 wire connector on the seat belt pretensioner RH (P/T squib
RH) side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace floor No. 2 wire.
OK
Page 1560 of 3115
H01020AB0119H01082 H10600H10619
Airbag
Sensor
Assembly
DTC B0130/63
ON" u
DLC3
TC CG
P/T Squib RH
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-779
972 Author: Date:
2004 LAND CRUISER (RM1071U)
3 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 B0130/63 is not output.
HINT:
Codes other than code B0130/63 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK