TOYOTA LAND CRUISER 1986 Factory Repair Manual

H01015
H16863H19234H19264
Airbag
Sensor
Assembly
(-)(+)VUPRAirbag Sensor
Assembly
ESR
VUPRESR Side and Curtain
Shield Airbag
Sensor Assembly RH
Floor No. 2 Wire
DI-810
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1003 Author
: Date
:
2004 LAND CRUISER (RM1071U)
5 Check floor No. 2 wire.
PREPARATION:
Using a service wire, connect VUPR and ESR of the floor No.
2 wire connector on the side and curtain shield airbag sensor
assembly RH side.
CHECK:
Measure the resistance between VUPR and ESR of the floor
No. 2 wire connector on the airbag sensor assembly side.
OK:
Resistance: Below 1 W
NG Repair or replace floor No. 2 wire.
OK

H01013H16864H17100
Airbag
Sensor
Assembly
Airbag Sensor Assembly
(+) (-)
Side and Curtain
Shield Airbag
Sensor Assembly RH
SSR+
VUPRSSR- Floor No. 2 Wire
AB0119
H01013
H16865H17101
Airbag
Sensor
Assembly
Airbag Sensor Assembly
ON
Side and Curtain
Shield Airbag
Sensor Assembly RH
(-) (+) SSR+ESR
SSR-
VUPR
Floor No. 2 Wire
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-81 1
1004 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6 Check floor No. 2 wire (to ground).
CHECK:
Measure the resistance between the body ground and each of
VUPR, SSR+ and SSR- of the floor No. 2 wire connector on the
airbag sensor assembly side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace floor No. 2 wire.
OK
7 Check floor No. 2 wire (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 each
of VUPR, SSR+, SSR- and ESR of the floor No. 2 wire
connector on the airbag sensor assembly side.
OK:
Voltage: Below 1 V
NG Repair or replace floor No. 2 wire.
OK

H01012AB0119H10600H01065H01066H21139
Airbag
Sensor
Assembly
CG
TCON
" u
DTC B1140/32 " u
DLC3 Side and Curtain
Shield Airbag
Sensor Assembly LH
DTC B1141/33
DI-812
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1005 Author
: Date
:
2004 LAND CRUISER (RM1071U)
8 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) Change the side and curtain shield airbag sensor assem-
bly LH position with RH position.
(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:
Neither DTC B1140/32 nor B1141/33 are not output.
HINT:
Codes other than code B1140/32 or B1141/33 may be output
at this time, but they are not relevant to this check.
NG Replace airbag sensor assembly
(DTC B1140/32 is output).
NG Replace side and curtain shield airbag sensor
assembly RH (DTC B1141/33 is output).
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.

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
B1141/33
Side and curtain shield airbag sensor assembly LH mal-
function
Side 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

AB0119H09530H10600H11034
ON
CG
TCDTC B1141/33
DLC3
DI-814
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1007 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Is DTC B1141/33 output?
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 B1141/33 is output.
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
YES The malfunctioning part can now be considered
normal. To make sure of this, use the simulation
method to check.
NO
2 Is connector of side and curtain shield airbag sensor assembly LH properly con-
nected?
NO Connect connector.
YES
3 Prepare for inspection (See step 1 on page DI-923).

H01010
H16867H19234H19265
Airbag
Sensor
Assembly
(-)(+) VUPL Airbag Sensor
Assembly
ESL
VUPL
Side and Curtain
Shield Airbag
Sensor Assembly LH
ESL
Floor No. 1 Wire
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-815
1008 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 Check floor No. 1 wire.
PREPARATION:
Using a service wire, connect VUPL and ESL of the floor No. 1
wire connector on the side and curtain shield airbag sensor as-
sembly LH side.
CHECK:
Measure the resistance between VUPL and ESL of the floor No.
1 wire connector on the airbag sensor assembly side.
OK:
Resistance: Below 1 W
NG Repair or replace floor No. 1 wire.
OK

H01010
H16866H19233H19266
Airbag
Sensor
Assembly
(-) (+) Airbag Sensor
Assembly
SSL- SSL+Side and Curtain
Shield Airbag
Sensor Assembly LH
SSL+
SSL-
Floor No. 1 Wire
DI-816
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1009 Author
: Date
:
2004 LAND CRUISER (RM1071U)
5 Check floor No. 1 wire.
PREPARATION:
Using a service wire, connect SSL+ and SSL- of the floor No.
1 wire connector on the side and curtain shield airbag sensor
assembly LH side.
CHECK:
Measure the resistance between SSL+ and SSL- of the floor
No. 1 wire connector on the airbag sensor assembly side.
OK:
Resistance: Below 1 W
NG Repair or replace floor No. 1 wire.
OK

H01008H16868H17104
Airbag
Sensor
Assembly
Airbag Sensor Assembly
VUPL
(-) (+)SSL+
SSL-
Side and Curtain Shield
Airbag Sensor Assembly LH
Floor No. 1 Wire
H01008AB0119H16869H17105
Airbag
Sensor
Assembly
Airbag Sensor Assembly
(-) (+) ESL SSL+
VUPLON
Side and Curtain Shield
Airbag Sensor Assembly LH
SSL-Floor No. 1 Wire
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-817
1010 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6 Check floor No. 1 wire (to ground).
CHECK:
Measure the resistance between the body ground and each of
VUPL, SSL+ and SSL- of the floor No. 1 wire connector on the
airbag sensor assembly side.
OK:
Resistance: 10 kW or Higher
NG Repair or replace floor No. 1 wire.
OK
7 Check floor No. 1 wire (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 each
of VUPL, SSL+, SSL- and ESL of the floor No. 1 wire con-
nector on the airbag sensor assembly side.
OK:
Voltage: Below 1 V
NG Repair or replace floor No. 1 wire.
OK

AB0119H10600H01065H01066
H01007
H21140
Airbag
Sensor
Assembly
CG
TCON
" u
DTC B1141/33 " u
DLC3
Side and Curtain
Shield Airbag
Sensor Assembly RH
DTC B1140/32
DI-818
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1011 Author
: Date
:
2004 LAND CRUISER (RM1071U)
8 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) Change the side and curtain shield airbag sensor assem-
bly RH position with LH position.
(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:
Neither DTC B1141/33 nor B1140/32 are not output.
HINT:
Codes other than code B1141/33 or B1140/32 may be output
at this time, but they are not relevant to this check.
NG Replace airbag sensor assembly
(DTC B1141/33 is output).
NG Replace side and curtain shield airbag sensor
assembly LH (DTC B1140/32 is output).
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.

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
B1148/36
Front 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