Toyota Corolla (E120): Circuit description

The p squib (2nd step) circuit consists of the airbag sensor assy center and instrument panel passenger airbag assy.

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

Dtc b1187/55 is recorded when ground short is detected in the p squib (2nd step) circuit.

Wiring diagram

Wiring diagram

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    Inspection procedure
    1 Check side squib(lh) circuit(airbag sensor assy center – front seat airbag assy lh) 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 front seat airbag assy ...

    Replacement
    1. Remove battery 2. Remove battery carrier Remove the 4 bolts and battery carrier. 3. Disconnect floor shift cable transmission control shift Remove the nut from the control shaft lever.  disconnect the control cable from the control shaft lever.  remove the clip a ...

    Definition of terms
    Term Definition Monitor description Description of what the ecm monitors and how it detects malfunctions (monitoring purpose and its details). Related dtcs Diagnostic code Typical enabling condition Preconditions that allow the ecm to detect ...