TSRM/MK3 Supra/Repair Manual
Repair ManualWiring DiagramsCommunity Fixes
p.045

AB/SRS Airbag, page 46

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p.047
SRS Airbag — MK3 Supra SRS Airbag, page 46
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Page text (OCR transcript)
AB-46

4  Check squib circuit.

ON

Center Airbag     Spiral     Steering Wheel
Sensor Assembly   Cable     Pad (Squib)

D*

AB0112
AB0277
AB0015

OK                    NG    Go to step 7.

5  Check center airbag sensor assembly.

Center Airbag     Spiral     Steering Wheel
Sensor Assembly   Cable     Pad (Squib)

D*               D*

ACC      ON

or
E1

Tc            Code 12

SST 09843-18020

AB0114
AB0277
AB0115  AB0115

OK                    NG    Replace center airbag sensor assembly.

C    Measure voltage at D* on spiral cable side of connector between spiral cable and steering wheel pad.

OK   Voltage: 0V

P    (1) Turn ignition switch LOCK.
     (2) Disconnect negative (-) terminal cable from battery.
     (3) Connect connector to center airbag sensor assembly.
     (4) Using SST, connect terminals D* and D~ on spiral cable side of connector between spiral cable and steering wheel.
     (5) Connect negative (-) terminal cable to battery, and wait at least 2 seconds.

C    (1) Turn ignition switch ACC or ON, and wait at least 20 seconds.
     (2) Using SST, connect terminals Tc and E1 of check connector.
     SST 09843-18020
     (3) Check diagnostic code.

OK   Diagnostic code 12 is not output.

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