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 description
    Refer to dtc p0130 Dtc no. Dtc detection condition Trouble area P0133 After engine has been warmed up, if response time that heated oxygen sensor’s output voltage reaches from rich to lean. Or from lean to rich, is 0.6 Second or more during idling. ...

    Meter display
    ■ Locations of gauges and meters Engine coolant temperature gauge Displays the engine coolant temperature Outside temperature Displays the outside temperature within the range of -40ºF (-40ºC) to 140ºF (60ºC) Analog speedometer/Tachometer This setting can be changed on the setting scr ...

    Inspection procedure
    1 Check source voltage Measure the voltage of the battery. Ok: voltage: 10 – 14 v 2 Check air bag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors from the airbag sensor assy ...