TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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SRS/Supplemental Restraint System, page 70

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Supplemental Restraint System — MK4 Supra Supplemental Restraint System, page 70
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Page text (OCR transcript)
RS–70
SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING

5 Check spiral cable.

Center Airbag
Sensor Assembly
P squib
Spiral
Cable
D squib
D– D+

RD5903
AB0068

P (1) Disconnect connector between center airbag
sensor assembly and spiral cable.
(2) Release airbag activation prevention mechanism
on center airbag sensor assembly side of airbag
squib connector (See page RS–72).

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

OK Resistance: 1 M  or higher

OK                    NG Repair or replace spiral cable.

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

Center Airbag
Sensor Assembly
P squib
Spiral
Cable
D squib
D– D+

RD5904
AB0068

P (1) Disconnect center airbag sensor assembly
connector.
(2) Release airbag activation prevention mecha–
nism on center airbag sensor assembly
connector. (See page RS–72)

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

OK Resistance: 1 M  or higher.

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