TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.074

SRS/Supplemental Restraint System, page 75

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p.076
Supplemental Restraint System — MK4 Supra Supplemental Restraint System, page 75
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Page text (OCR transcript)
RS–75

SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING

3  Check spiral cable.

Center Airbag
Sensor Assembly
P squib

Spiral
Cable

D squib

D–        D+

R05899
AB0068

P  Disconnect connector between center airbag sensor assembly and spiral cable.

C  For connector (on the spiral cable side) between the spiral cable and steering wheel pad, measure the resistance between D+ and D–.

OK  Resistance: Below 1

OK          NG  Repair or replace spiral cable.

4  Check harness between center airbag sensor assembly and spiral cable.

Center Airbag
Sensor Assembly
P squib

Spiral
Cable

D squib

D–        D+

R05906
AB0068

C  For connector (on the center airbag sensor assembly side) between the center airbag sensor assembly and spiral cable, measure the resistance between D+ and D–.

OK  Resistance: Below 1

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