1996 TOYOTA LAND CRUISER airbag

BO37G−01
−
BODY SRS AIRBAG
BO−3
1237
Author: Date:
1996 LAND CRUISER (RM451U)
SRS AIRBAG
PRECAUTION
The LAND CRUISER is equipped with an SRS (Supplemental Restraint System) such as the driver airbag
and front passenger airbag. Failure to carry out service operation in th\
e correct sequence could cause the
SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (in\
-
cluding removal or installation of parts, inspection or replacement), be sure t\
o read the precautionary notices
in the RS section.
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BO37H−01
BO−4
−
BODY FRONT BUMPER
1238
Author: Date:
1996 LAND CRUISER (RM451U)
FRONT BUMPER
COMPONENTS
CAUTION:
The side rail extensions are necessary for normal function-
ing of the SRS airbag, so make sure that they are correctly
installed.When replacing the bumper, always inspect the
side rail extensions. If they are deformed or cracked, re-
place them. Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
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−
BODY INSTRUMENT PANEL
BO−77
1996 LAND CRUISER (RM451U)
15. REMOVE CENTER CLUSTER FINISH PANEL WITH
HEATER CONTROL ASSEMBLY
(a) Using a screwdriver, take off the 2 claws, then remove the
cup holder hole cover.
HINT:
Tape the screwdriver tip before use.
(b) Take off the ashtray.
(c) Remove the center cluster finish panel with heater control
assembly, then disconnect the connectors.
(d) Remove the 2 screws and heater control assembly from the center cluster finish panel.
16. REMOVE RADIO
17. REMOVE GLOVE COMPARTMENT DOOR
18. REMOVE SPEAKER PANEL AND SPEAKER
19. REMOVE FRONT AND REAR CONSOLE BOX
20. DISCONNECT AIRBAG CONNECTOR
(a) Remove the airbag connector from the airbag bracket.
NOTICE:
When handling the airbag connector , take care not to dam-
age the airbag wire harness.
(b) Disconnect the airbag connector.
21. REMOVE INSTRUMENT PANEL
(a) Remove the 5 screws and 9 bolts.
(b) Remove the instrument panel. Torque: 20 N·m (210 kgf·cm, 15 ft·lbf) for passenger
airbag bolts
22. REMOVE INSTRUMENT PANEL REINFORCEMENT
(a) Remove the 2 bolts and lower instrument panel reinforce-
ment.
(b) Remove the 2 bolts, 2 nuts and No. 1 brace.
(c) Remove the 4 bolts, 4 nuts and instrument panel rein- forcement.
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BO399−01
BO−78
−
BODY INSTRUMENT PANEL
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. REMOVE GLOVE COMPARTMENT DOOR RE- INFORCEMENT
2. REMOVE NO. 4 HEATER TO REGISTER DUCT
3. REMOVE NO. 5 HEATER TO REGISTER DUCT
4. REMOVE NO. 2 REGISTER
5. REMOVE GLOVE COMPARTMENT DOOR LOCK STRIKER PLATE
6. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY (See page RS−22 )
(a) Remove the 4 bolts and 2 nuts, and remove front passen-
ger airbag assembly.
(b) Pry up the 6 clips shown in the illustration and remove the airbag door.
CAUTION:
Do not store the front passenger airbag assembly
with the airbag deployment direction facing down.
Never disassemble the front passenger airbag as-
sembly.
7. REMOVE NO. 3 CONSOLE MOUNTING BRACKET
8. REMOVE NO. 1 HEATER TO REGISTER DUCT
9. REMOVE NO. 2 STAY
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DI5Q2−02
R13451
R13006
E1Tc
AT0716
Normal Code
ON
OFF 0.25
0.25
DI−240
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
1996 LAND CRUISER (RM451U)
PRE−CHECK
1. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to ACC or ON and check that the
SRS warning light lights up.
(b) Check that the SRS warning light goes out after approx. 6 seconds.
HINT:
When the ignition switch is at ACC or ON and the SRS
warning light remains on or flashes, the airbag sensor as-
sembly has detected a malfunction code.
If, after approx. 6 seconds have elapsed, the SRS warn-
ing light sometimes lights up or the SRS warning light
lights up even when the ignition switch is OFF, a short in
the SRS warning light circuit can be considered likely.
Proceed to ”SRS warning light system malfunction” on
page DI−274 , DI−276 .
2. DTC CHECK (Using diagnosis check wire)
(a) Output the DTC. (1) Turn the ignition switch to ACC or ON position andwait approx. 20 seconds.
(2) Using SST, connect terminals Tc and E1 of the
DLC1.
SST 09843−18020
(b) Read the DTC. Read the 2− digit DTC as indicated by the number of times
the SRS warning light blinks. As an example, the blinking
patterns, normal, 11 and 31 are as shown on the illustra-
tion.
Normal code indication
The light will blink 2 times per second.
Malfunction code indication
The first blinking output indicates the first digit
of a 2−digit DTC. After a 1.5 second pause,
the second blinking output will indicate the
second digit.
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DI5Q3−02
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−243
1996 LAND CRUISER (RM451U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, the circuit listed for that code in t\
he table below
(Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
Normal
( DI−271 )System normal−OFF
Source voltage dropBattery
 Airbag sensor assemblyON
11
( DI−247 )
Short in squib circuit (to ground)Steering wheel pad (D squib)
 Front passenger airbag assembly (P squib )
 Spiral cable
 Airbag sensor assembly
 Wire harness
ON
12
( DI−254 )
Short in squib circuit (to B+)Steering wheel pad (D squib)
 Front passenger airbag assembly (P squib)
 Spiral cable
 Airbag sensor assembly
 Wire harness
ON
14
( DI−260 )
Open in D squib circuitSteering wheel pad (D squib)
 Spiral cable
 Airbag sensor assembly
 Wire harness
ON
31
( DI−265 )Airbag sensor assembly malfunctionAirbag sensor assemblyON
54
( DI−267 )Open in P squib circuitFront passenger airbag assembly (P squib)
 Airbag sensor assembly
 Wire harness
ON
HINT:
When the SRS warning light remains lit up and the DTC is the normal code\
, this means a source drop
voltage.
This malfunction is not stored in memory by the airbag sensor assembly a\
nd if the power source volt-
age returns to normal, the SRS warning light will automatically go out.
When 2 or more codes are indicated, the codes will be displayed in numer\
al order starting from the
lowest numbered code.
If a code not listed on the chart is displayed, the airbag sensor assemb\
ly is faulty.
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DI5Q4−02
R13515
Front Passenger Airbag Assembly
Steering Wheel Pad
(With Airbag)
Spiral Cable
Airbag Sensor Assembly
DI−244
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
1996 LAND CRUISER (RM451U)
PARTS LOCATION
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DI5Q7−03
R16017
Airbag Sensor Assembly
P Squib
D Squib Spiral
Cable W−R
B−R
WB
1
2 1 2
1
2
3
4 P
+
P−
D+
D−
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−247
1996 LAND CRUISER (RM451U)
CIRCUIT INSPECTION
DTC 11 Short in Squib Circuit (to Ground)
CIRCUIT DESCRIPTION
The squib circuit consists of the airbag sensor assembly, spiral cable, steering wheel pad and front passen-
ger airbag assembly. If causes the SRS to deploy when the SRS deployment conditions are sat\
isfied.
For details of the function of each component, see FUNCTION OF COMPONENT\
S on page RS−2.
DTC 11 is recorded when ground short is detected in the squib circuit.
DTC No.DTC Detection ConditionTrouble Area
11
 Short circuit in squib wire harness (to ground)
 Squib malfunction
 Spiral cable malfunction
 Airbag sensor assembly malfunctionSteering wheel pad (D squib)
 Front passenger airbag assembly (P squib)
 Spiral cable
 Airbag sensor assembly
 Wire harness
WIRING DIAGRAM
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