Toyota Corolla (E120): Circuit description

The d squib (2nd step) circuit consists of the airbag sensor assy center, spiral cable sub–assy and horn button assy.

It causes the srs to deploy when the srs deployment conditions are satisfied.

Dtc b1183/22 is recorded when a b+ short is detected in the d squib (2nd step) circuit.

 

Wiring diagram

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    Inspection procedure
    Hint Advanced timing over (valve timing is out of specified range) P0011 Retarded timing over (valve timing is out of specified range) P0012 If dtc p0011 or p0012 is displayed, check the vvt system circuit. Read freeze frame data using the hand–held tester o ...

    Inspection procedure
    1 Check d squib circuit(airbag sensor assy center – horn button assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the horn button assy and the airbag sensor assy center.  for the oran ...

    On–vehicle inspection
    1. Inspect pressure switch no.1. Magnetic clutch control: inspect pressure switch operation.  Set on the manifold gauge set.  Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (–) lead to terminal 1.  Check continuity between termin ...