Toyota Corolla (E120): Circuit description

The p squib 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 b0107/51 is recorded when ground short is detected in the p squib circuit.

Wiring diagram

Wiring diagram

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    General information
    There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...

    Antenna cord sub–assy
    Replacement Hint: components: 1. Remove instrument panel sub–assy upper Hint: refer to the procedure until the step, ”remove instrument panel sub–assy upper” of instrument panel sub–assy lower. Remove the related parts as long as the antenna cord sub–assy can be removed ...

    Inspection procedure
    1 Check relay (marking: starter cut) Inspect the relay continuity, as shown in the illustration and table. Standard: 2 Check tvip ecu Disconnect the tvip ecu connector.  turn the ignition switch position to the start.  measure the voltage between the termina ...