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 b1188/56 is recorded when a b+ short is detected in the p squib (2nd step) circuit.

Wiring diagram

Wiring diagram

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    Inspection procedure
    1 Check p squib circuit(airbag sensor assy center – instrument panel passenger airbag assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector between the airbag sensor assy center and the instrument panel ...

    Repair
    1. Steering off center repair procedure Inspect steering wheel off center.  Apply masking tape on the top center of the steering wheel and steering column upper cover.  Driving the vehicle on a straight line for 100 meters at a constant speed of 35 mph (56 km/h), and ho ...

    Circuit description
    Refer to dtc p0115 Dtc no. Dtc detection condition Trouble area P0125 If the engine coolant temperature (ect) was less than –6.6 °C (20 °F) when starting the engine, and 20 minutes after the engine start, the ect sensor still indicates below 20 °C (68 ...