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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    Radiator assy
    Replacement 1. Drain coolant 2. Separate radiator hose inlet 3. Separate radiator hose outlet 4. Separate oil cooler inlet tube no.1 5. Separate oil cooler outlet tube no.1 6. Remove radiator assy  disconnect the fan motor connector.  disconnect two clamps for wire–harness fr ...

    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 ...

    Inspection procedure
    1 Inspect park/neutral position switch assy Disconnect the park/neutral position switch connector.  measure resistance according to the value(s) in the table below when the shift lever is moved to each position. Standard: 2 Check harness and connector(park/neutral position ...