TSRM/MK3 Supra/Repair Manual
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AB/SRS Airbag — Diagnostic Chart, page 44

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p.045
Diagnostic Chart — MK3 Supra SRS Airbag, page 44
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Page text (OCR transcript)
DIAGNOSTIC CHART

1
Preparation.

2
Check front airbag sensor circuit.
(Measure resistance between terminals
+SR and -SR, +SL and -SL of center
airbag sensor assembly connector.)
NG → Go to Code 15 (See page AB-60).
OK ↓

3
Check front airbag sensor circuit.
(Measure voltage between terminal +SR
or +SL of center airbag sensor assembly
connector and body ground.)
NG → Repair or replace harness or connector between center airbag sensor assembly and front airbag sensor (See page AB-21).
OK ↓

4
Check squib circuit.
NG → Go to step 7.
OK ↓

5
Check center airbag sensor assembly.
NG → Replace center airbag sensor assembly.
OK ↓

6
Check squib.
NG → Replace steering wheel pad.
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.

7
Check spiral cable.
NG → Repair or replace spiral cable.
OK ↓

Repair or replace harness or connector
between center airbag sensor assembly
and spiral cable.

WIRING DIAGRAM

Center Airbag Sensor Assembly
Power Source
Safing
Sensor

Steering Wheel Pad
Squib
Spiral Cable
D+ D-

Front Airbag Sensor LH
+SL -SL

Front Airbag Sensor RH
+SR -SR

AB0106