TSRM/MK4 Supra/Repair Manual
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SRS/Supplemental Restraint System, page 64

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Supplemental Restraint System — MK4 Supra Supplemental Restraint System, page 64
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Page text (OCR transcript)
RS–64
SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING

7 Check D squib.

P squib
Center Airbag
Sensor Assembly
D squib
Spiral
Cable

ACC ON
or
DLC 1
E1 Tc
Code 12
DLC 2
Tc E1

R05896
AB0118 AB0119
lei-23-1-A FI1388
S-17-1

P (1) Turn ignition switch to LOCK.
(2) Disconnect negative (–) terminal cable from the
battery, and wait at least 90 seconds.
(3) Connect steering wheel pad connector.
(4) Connect negative (–) terminal cable to battery,
and wait at least 2 seconds.

C (1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory.
(See page RS–47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(5) Using SST, connect terminals Tc and E1 of
DLC1 or DLC2.
SST 09843–18020
(6) Check diagnostic trouble code.

OK Diagnostic trouble code 12 is not output.

Hint Codes other than code 12 may be output at this
time, but they are not relevant to this check.

OK
NG Replace steering wheel pad.

8 Check D squib.

P squib Center Airbag
Sensor Assembly
Spiral
Cable
D squib

ACC ON
or
DLC 1
E1 Tc
Code 12
DLC 2
Tc E1

R05897
AB0118 AB0119
lei-23-1-A FI1388
S-17-1

P (1) Turn ignition switch to LOCK.
(2) Disconnect negative (–) terminal cable from the
battery, and wait at least 90 seconds.
(3) Connect front passenger airbag assembly con–
nectar.
(4) Connect negative (–) terminal cable to battery,
and wait at least 2 seconds.

C (1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory.
(See page RS–47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(5) Using SST, connect terminals Tc and E1 of
DLC1 or DLC2.
SST 09843–18020
(6) Check diagnostic trouble code.

OK Diagnostic trouble code 12 is not output.

Hint Codes other than code 12 may be output at this
time, but they are not relevant to this check.

OK
NG Replace front passenger airbag assembly.