1986 TOYOTA LAND CRUISER steering wheel
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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 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.
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
Page 1680 of 3115
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
Page 1681 of 3115
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.
Page 1682 of 3115
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
Page 1705 of 3115
AB0117H21236H21526
LOCK
Airbag
Sensor
Assembly
Side and Curtain Shield
Airbag Sensor RH (*1)
Side Squib RH (*1)
P Squib
D Squib
Spiral
Cable
Front Airbag
Sensor RH
Front Airbag
Sensor LH
Curtain Shield
Squib LH (*1)
Side and Curtain Shield
Airbag Sensor LH (*1)
Side Squib LH (*1)
Curtain Shield
Squib RH (*1)
P/T Squib LH P/T Squib RH
Curtain Shield
Airbag Sensor LH (*1)Curtain Shield
Airbag Sensor RH (*1)Seat Position
Sensor Assembly
Front Seat Inner Belt
*1: w/ Side Airbag
DI-924
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
111 7 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Prepare for inspection.
PREPARATION:
(a) Disconnect the negative (-) terminal cable from the bat-
tery, and wait at least for 90 seconds.
(b) Remove the steering wheel pad (See page SR-29).
(c) Disconnect the connector of the front passenger airbag
assembly (See page RS-31).
(d) w/ Side airbag:
Disconnect the connector of the side airbag assembly RH
and LH (See page RS-44).
(e) w/ Side airbag:
Disconnect the connector of the curtain shield airbag as-
sembly RH and LH (See page RS-59).
(f) Disconnect the connector of the seat belt pretensioner
RH and LH (See page BO-141).
(g) Disconnect the connectors of the airbag sensor assembly
(See page RS-70).
(h) Disconnect the connector of the front airbag sensor RH
and LH (See page RS-75).
(i) w/ Side airbag:
Disconnect the connector of the side and curtain shield
airbag sensor assembly RH and LH (See page RS-80).
(j) w/ Side airbag:
Disconnect the connector of the curtain shield airbag sen-
sor assembly RH and LH (See page RS-86).
(k) Disconnect the connector of the seat position sensor as-
sembly (See page RS-91).
(l) Disconnect the front seat inner belt LH connector (See
page BO-106).
CAUTION:
Store the steering wheel pad, front passenger airbag as-
sembly, side airbag assembly and curtain shield airbag as-
sembly with the front surface facing upward.
Page 1707 of 3115
H01249
ON
DI-926
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
111 9 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Does SRS warning light turn off?
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Connect the steering wheel pad connector.
(c) Connect the front passenger airbag assembly connector.
(d) w/ Side airbag:
Connect the side airbag assembly connectors.
(e) Connect the seat belt pretensioner connectors.
(f) Connect the airbag sensor assembly connectors.
(g) Connect the front airbag sensor connectors.
(h) w/ Side airbag:
Connect the side and curtain shield airbag sensor assem-
bly connectors.
(i) w/ Side airbag:
Connect the curtain shield airbag assembly connectors.
(j) w/ Side airbag:
Connect the curtain shield airbag sensor assembly con-
nectors.
(k) Connect the seat position sensor assembly connector.
(l) Connect the front seat inner belt LH connector.
CHECK:
(a) Turn the ignition switch to ON.
(b) Operate electric system (defogger, wiper, headlight, heat-
er blower, etc.) and check that SRS warning light goes off.
NO Check for DTCs. If a DTC is output, perform trou-
bleshooting for the DTC. If a normal code is out-
put, replace airbag sensor assembly.
YES
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 1718 of 3115
DI6OZ-25
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-701
894 Author: Date:
2004 LAND CRUISER (RM1071U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below (Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(DI-71 1)
Short in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B0101/14
(DI-717)
Open in D squib circuitSteering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B0102/11
(DI-722)
Short in D squib circuit (to ground)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B0103/12
(DI-727)
Short in D squib circuit (to B+)Steering wheel pad (squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B0105/53
(DI-732)Short in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Dash wire
ON
B0106/54
(DI-736)Open in P squib circuitFront passenger airbag assembly (squib)
Airbag sensor assembly
Dash wire
ON
B0107/51
(DI-739)Short in P squib circuit (to ground)Front passenger airbag assembly (squib)
Airbag sensor assembly
Dash wire
ON
B0108/52
(DI-742)Short in P squib circuit (to B+)Front passenger airbag assembly (squib)
Airbag sensor assembly
Dash wire
ON
B0110/43
(*1)
(DI-745)Short in side squib RH circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B0111/44
(*1)
(DI-749)Open in side squib RH circuitSide airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B0112/41
(*1)
(DI-752)Short in side squib RH circuit
(to ground)Side airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B0113/42
(*1)
(DI-755)Short in side squib RH circuit
(to B+)Side airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B0115/47
(*1)
(DI-758)Short in side squib LH circuitSide airbag assembly LH (squib)
Airbag sensor assembly
Floor No. 1 wire
Blink
Page 1720 of 3115
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-703
896 Author: Date:
2004 LAND CRUISER (RM1071U)B1149/37
(DI-828)
Front airbag sensor LH malfunctionFront airbag sensor LH
Airbag sensor assembly
Dash wire
Engine room No. 2 wire
Engine room main wire
ON
B1153/25
(DI-836)
Seat position sensor malfunctionSeat position sensor assembly
Airbag sensor assembly
Floor No. 1 wire
Front seat wire LH
ON
B1154/38
(*1)
(DI-844)Curtain shield airbag sensor assembly
RH malfunctionCurtain shield airbag sensor assembly RH
Airbag sensor assembly
Floor No. 2 wire
Blink
B1155/39
(*1)
(DI-850)Curtain shield airbag sensor assembly
LH malfunctionCurtain shield airbag sensor assembly LH
Airbag sensor assembly
Floor No. 1 wire
Blink
B1160/83
(*1)
(DI-856)Short in curtain shield squib RH circuitCurtain shield airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B1161/84
(*1)
(DI-860)Open in curtain shield squib RH circuitCurtain shield airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B1162/81
(*1)
(DI-863)Short in curtain shield squib RH circuit
(to ground)Curtain shield airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B1163/82
(*1)
(DI-866)Short in curtain shield squib RH circuit
(to B+)Curtain shield airbag assembly RH (squib)
Airbag sensor assembly
Floor No. 2 wire
Blink
B1165/87
(*1)
(DI-869)Short in curtain shield squib LH circuitCurtain shield airbag assembly LH (squib)
Airbag sensor assembly
Floor No. 1 wire
Blink
B1166/88
(*1)
(DI-873)Open in curtain shield squib LH circuitCurtain shield airbag assembly LH (squib)
Airbag sensor assembly
Floor No. 1 wire
Blink
B1167/85
(*1)
(DI-876)Short in curtain shield squib LH circuit
(to ground)Curtain shield airbag assembly LH (squib)
Airbag sensor assembly
Floor No. 1 wire
Blink
B1168/86
(*1)
(DI-879)Short in curtain shield squib LH circuit
(to B+)Curtain shield airbag assembly LH (squib)
Airbag sensor assembly
Floor No. 1 wire
Blink
B1180/17
(DI-882)
Short in D squib (2nd step) circuitSteering wheel pad (D squib, 2nd step)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B1181/18
(DI-888)
Open in D squib (2nd step) circuitSteering wheel pad (D squib, 2nd step)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON
B1182/19
(DI-893)
Short in D squib (2nd step) circuit
(to ground)Steering wheel pad (D squib, 2nd step)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
ON