Toyota Corolla (E120): Circuit description

The d squib 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 b1180/17 is recorded when a short is detected in the d squib circuit (2nd step).

Wiring diagram

Wiring diagram

Inspection procedure

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    Circuit inspection
    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 airbag sensor assy center and the horn button assy.  connect the ...

    Overhaul
    1. Remove roof headlining assy 2. Remove sliding roof glass sub–assy  using a torx wrench (t25), remove the 4 screws the sliding roof glass.  pull the glass upward to remove it. 3. Remove sliding roof weatherstrip 4. Remove sliding roof drive gear sub–assy Notice: ...

    Driving support system information display
    ■ Driving support system information Select to display the operational status of the following systems: Dynamic radar cruise control LTA (Lane Tracing Assist) LDA (Lane Departure Alert) ■ Navigation system-linked display (if equipped) Select to display the following navigation system-linked ...