TOYOTA LAND CRUISER 1998 Factory Repair Manual
Manufacturer: TOYOTA, Model Year: 1998, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1998Pages: 3115, PDF Size: 54.88 MB
Page 1491 of 3115
DI23C-14
F05341
1
1 3
8 2
2
9 3 4
10 11 12 13 14 15 16765
4 5 6 87
T7T8
DI-662- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
855 Author: Date:
2004 LAND CRUISER (RM1071U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG (T7 4) GND (T7 6)BW WBIG switch ON10 - 14 (DC)IG (T7-4) - GND (T7-6)B-W - W-BIG switch LOCKBelow 1 (DC)
VC (T7-2) - GND (T7-6)V - W-BAlways4.5 - 5.5 (DC)
GND (T7-6) - Body GroundW-B -
Body GroundAlwaysBelow 1 (DC)
ECUB (T7-1) - Body GroundL-W -
Body GroundAlways10 - 14 (DC)
ECUB (T7-1) - GND (T7-6)L-W - W-BAlways10 - 14 (DC)
Tilt up by manual switch1.30 - 1.70 (DC)
Tilt down by manual switch0.30 - 0.50 (DC)
MSW (T7-5) - GND (T7-6)V-Y - W-BTelescopic extended by manual switch2.05 - 2.75 (DC)MSW (T7 5) GND (T7 6)VY WB
Telescopic contracted by manual switch0.65 - 0.95 (DC)
Manual switch is not operatingBelow 0.20 (DC)
+B (T8-4) - GND (T7-6)G-B - W-BAlways10 - 14 (DC)
S5V1 (T8-13) - SG1 (T8-14)G-W - G-YIG switch ON4.5 - 5.5 (DC)
S5V2 (T8-12) - SG2 (T8-10)B-W - B-YIG switch ON4.5 - 5.5 (DC)
A1 (T8-7) - COM1 (T8-15)P - GIG switch ON, tilt up or down by manual switch190 - 230 (AC)
B1 (T8-16) - COM1 (T8-15)V - GIG switch ON, tilt up or down by manual switch190 - 230 (AC)
A2 (T8-1) - COM2 (T8-9)W - BIG switch ON, telescopic extend or contracted by manual switch190 - 230 (AC)
B2 (T8-8) - COM2 (T8-9)G - BIG switch ON, telescopic extend or contracted by manual switch190 - 230 (AC)
Page 1492 of 3115
DI3IY-09
H05146
A28
D Squib
Spiral CableY-B
Y1
II4
2
II4Y-B
YAirbag Sensor Assembly
14
C26
13D+
D- 1
2
C26
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-71 1
904 Author: Date:
2004 LAND CRUISER (RM1071U)
CIRCUIT INSPECTION
DTC B0100/13 Short in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib 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 B0100/13 is recorded when a short is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0100/13
Short in D squib circuit
D squib malfunction
Spiral cable malfunction
Airbag sensor assembly malfunctionSteering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
WIRING DIAGRAM
Page 1493 of 3115
H19229H21259H20678
D Squib
D+
(-) (+) D-
Spiral
CableAirbag
Sensor
Assembly
DI-712
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
905 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 orange 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 circuit.
PREPARATION:
Release the airbag activation prevention mechanism built in the
connector on the airbag sensor assembly side between the
steering wheel pad (D squib) and the airbag sensor assembly
(See page DI-692).
CHECK:
Measure the resistance between D+ and D- of the orange con-
nector on the steering wheel pad (D squib) side between the air-
bag sensor assembly and the steering wheel pad (D squib).
OK:
Resistance: 1 MW or Higher
NG Go to step 6.
OK
Page 1494 of 3115
AB0119H02243H10600
H21263
H10679
D Squib
Airbag
Sensor
Assembly
CG
TCON
DTC B0100/13
DLC3
Spiral
Cable
" u
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-713
906 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 B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
Page 1495 of 3115
AB0119FI1390H10600
H21267
H20680
D Squib
Airbag
Sensor
Assembly
CG
TCON
DTC B0100/13
DLC3
" uSpiral
Cable
DI-714
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
907 Author: Date:
2004 LAND CRUISER (RM1071U)
5 Check D squib.
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) 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 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 B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad (D squib).
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 1496 of 3115
H19229H21268H20681
D SquibAirbag
Sensor
Assembly
D+ u"
D-
(+) (-) Column Wire
Spiral
Cable
H16854H21269H20682
D Squib
Airbag
Sensor
Assembly
D+ u"
D-
(-)
(+) Column Wire
Dash Wire
Spiral
Cable
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-715
908 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 connector of the spiral cable on the airbag sensor
assembly side (See page DI-692).
CHECK:
Measure the resistance between D+ and D- of the orange spi-
ral cable connector on the steering wheel pad (D squib) side.
OK:
Resistance: 1 MW or Higher
NG Replace spiral cable.
OK
7 Check column wire.
PREPARATION:
(a) Disconnect the column wire connector from the dash
wire.
(b) Release the airbag activation prevention mechanism built
in the connector of the column wire on the airbag sensor
assembly side (See page DI-692).
CHECK:
Measure the resistance between D+ and D- of the column wire
connector on the spiral cable side.
OK:
Resistance: 1 MW or Higher
NG Repair or replace column wire.
OK
Page 1497 of 3115
H16854H21760H20683
D Squib
Airbag
Sensor
Assembly
D+
(-)
(+)D-
Column WireDash Wire
Spiral
Cable
DI-716
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
909 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 D+ and D- 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 1498 of 3115
H19229H21259H10678
D Squib
D+
(-) (+) D-
Spiral
CableAirbag
Sensor
Assembly
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-717
910 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC B0101/14 Open in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib 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 B0101/14 is recorded when an open is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0101/14
Open in D squib circuit
D squib malfunction
Spiral cable malfunction
Airbag sensor assembly malfunctionSteering wheel pad (D squib)
Spiral cable
Airbag sensor assembly
Dash wire
Column wire
WIRING DIAGRAM
See page DI-71 1.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-923).
2 Check D squib circuit.
CHECK:
Measure the resistance between D+ and D- of the orange con-
nector on the steering wheel pad (D squib) side between the air-
bag sensor assembly and the steering wheel pad (D squib).
OK:
Resistance: Below 1 W
NG Go to step 5.
OK
DI3IZ-04
Page 1499 of 3115
AB0119W02044H19230H10600
H21272
H10685
D Squib
TCON
DTC B0101/14
DLC3"u
D+D-
CG
Spiral
CableAirbag
Sensor
Assembly
DI-718
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
911 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 D+ and D- of the orange
connector on the steering wheel pad (D squib) side be-
tween the airbag sensor assembly and the steering wheel
pad (D squib).
(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 B0101/14 is not output.
HINT:
Codes other than code B0101/14 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
Page 1500 of 3115
W02044AB0119H10600
H21267
H20686
"u
D Squib
CG
TCON
DTC B0101/14 DLC3
Spiral
CableAirbag
Sensor
Assembly
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-719
912 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check D squib.
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) 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 B0101/14 is not output.
HINT:
Codes other than code B0101/14 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad (D squib).
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.