1986 TOYOTA LAND CRUISER ignition

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

AB0119
H10600H21267
H21153
"u D Squib
(2nd step)
ON
DTC B1181/18 DLC3
TC
CG
Airbag
Sensor
AssemblySpiral
Cable
DI-890
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1083 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 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 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 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.

AB0118
H10600H19247H21272
H21154
D2+D2-
ON
DTC B1182/19
DLC3"u
TC CG
D Squib
(2nd step)
Spiral
Cable
Airbag
Sensor
Assembly
DI-894
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1087 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 B1182/19 is not output.
HINT:
Codes other than code B1182/19 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H10600 AB0119
H21267
H21155
D Squib
(2nd step)
ON
DTC B1182/19
DLC3 " u
TC CG
Spiral
CableAirbag
Sensor
Assembly
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-895
1088 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 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 B1182/19 is not output.
HINT:
Codes other than code B1182/19 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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

AB0119H19245
H21259
H21229
D2+
(-) (+)
ON
Airbag
Sensor
AssemblySpiral
Cable D Squib
(2nd step)
DI-898
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1091 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC B1183/22 Short in D Squib (2nd step) Circuit
(to B+)
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 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 B1183/22 is recorded when a B+ short is detected in the D squib (2nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1183/22

Short in D squib (2nd step) circuit (to B+)

D squib (2nd step) malfunction

Spiral cable malfunction

Airbag sensor assembly malfunction
Steering 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.
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 D2+
of the black connector on the steering wheel pad (D squib
(2nd step)) side between the airbag sensor assembly and
the steering wheel pad (D squib (2nd step)).
OK:
Voltage: Below 1 V
NG Go to step 5.
OK
DIB43-01

AB0119
H10600H19247H21272
H21156
D2+D2-
ON
DTC B1183/22
DLC3
" u
TC CG
Airbag
Sensor
AssemblySpiral
Cable D Squib
(2nd step)
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-899
1092 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 B1183/22 is not output.
HINT:
Codes other than code B1183/22 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0019
W02043 H10600H21267
H21157
"u
ON
DTC B1183/22
DLC3
TC CG
Airbag
Sensor
AssemblySpiral
Cable D Squib
(2nd step)
DI-900
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1093 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 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 B1183/22 is not output.
HINT:
Codes other than code B1183/22 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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

AB0119H19245
H21268
H21230
D2+ u"
(-)(+) ON
Column Wire
Airbag
Sensor
AssemblySpiral
Cable D Squib
(2nd step)
AB0119H16851
H21269
H21231
u"
ON Column Wire
(+) (-)D2+
Airbag
Sensor
AssemblySpiral
Cable D Squib
(2nd step)
Dash
Wire
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-901
1094 Author
: Date
:
2004 LAND CRUISER (RM1071U)
5 Check spiral cable.
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 spiral cable connector from the column
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 D2+
of the black spiral cable connector on the steering wheel
pad (D squib (2nd step)) side.
OK:
Voltage: Below 1 V
NG Replace spiral cable.
OK
6 Check column wire.
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 column wire connector from the dash
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 D2+
of the column wire connector on the spiral cable side.
OK:
Voltage: Below 1 V
NG Repair or replace column wire.
OK