1996 TOYOTA LAND CRUISER restraint

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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DI5Q5−02
W02056
1
2
3
4
567
8910 A
B
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−245
1996 LAND CRUISER (RM451U)
TERMINALS OF ECM
No.SymbolTerminal Name
A−Electrical Connection Check Mechanism
B−Electrical Connection Check Mechanism
1P−Squib  (Passenger)
2P+Squib  (Passenger)
3D−Squib  (Driver)
4D+Squib  (Driver)
5E1Ground
6E2Ground
7TcDiagnosis
8LASRS Warning Light
9IG2Power Source (IGN Fuse)
10ACCPower Source (CIG Fuse)
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DI5Q6−01
DI−246
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
1996 LAND CRUISER (RM451U)
PROBLEM SYMPTOMS TABLE
Proceed with troubleshooting of each circuit in the table below.
SymptomSuspect AreaSee page
With the ignition switch at ACC or ON, the SRS warning light
sometimes lights up after approx. 6 seconds have elapsed.
 SRS warning light lights up even when ignition switch is in the
LOCK position.
SRS warning light system malfunction
(Always lit up when ignition switch is in LOCK position.)DI−274
With the ignition switch at ACC or ON, the SRS warning lights
does not light up.SRS warning light system malfunction
(Does not light up when ignition switch is turned to ACC or
ON.)
DI−276
DTC not displayed.
 SRS warning light is always lit up with a DTC check procedure.
 DTC displayed without Tc and E1 terminal connection.
Tc terminal circuitDI−279
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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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R05901
R14290H00004
Airbag Sensor
Assembly
P Squib
D Squib Spiral
Cable
D+
D−
DI−248
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1 Preparation. (See step 1 on page DI−271)
2 Check D squib circuit.
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and steering wheel pad, measure the resistance between
D
+, D− and body ground.
OK:
Resistance: 1 MΩ or Higher
NG Go to step 7.
OK
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R05896 R14291H00005
Spiral
CableAirbag Sensor
Assembly
P Squib
D Squib P+
P−
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−249
1996 LAND CRUISER (RM451U)
3 Check P squib circuit.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the airbag sensor assembly and front passenger airbag
assembly, measure the resistance between P
+, P− and body
ground.
OK:
Resistance: 1 MΩ or Higher
NG Repair or replace harness or connector be- tween the airbag sensor assembly and front
passenger airbag assembly.
OK
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AB0069
W01933
AB0118
R13006AB0069
AB0118
W02042
H00006
Airbag Sensor
Assembly
Spiral
Cable
P Squib
D Squib P+
P−
D+
D− ACC
ON
or
Code 11
DLC1
Tc
E1
DI−250
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
1996 LAND CRUISER (RM451U)
4 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using service wire, connect D
+ and D− on spiral cable side
of connector between spiral cable and steering wheel
pad.
(c) Using a service wire, connect P
+ and P− on airbag sensor
assembly side of connector between airbag sensor as-
sembly and front passenger airbag assembly.
(d) Connect negative ( −) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory. (See page DI−240 )
(c) Turn ignition switch to LOCK, and wait at least 20 se- conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1. SST 09843−18020
(f) Check DTC
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK
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R05896
AB0118
R13006AB0119
W02042
H00007
Spiral
Cable
P Squib
D Squib
ACC ON
or
DLC1 Code 11
E1 Tc Airbag
Sensor
Assembly
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−251
1996 LAND CRUISER (RM451U)
5 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative ( −) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative ( −) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory. (See page DI−240 )
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
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