Toyota Corolla (E120): Circuit description

The p/t squib (lh) circuit consists of the airbag sensor assy center and seat belt pretensioner (lh).

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

Dtc b0137/71 is recorded when a ground short is detected in the p/t squib (lh) circuit.

Wiring diagram

Wiring diagram

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    Inspection procedure
    1 Inspect shift solenoid valve(s2) Remove the shift solenoid valve s2.  measure the resistance according to the value(s) in the table below. Standard: Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (–) battery lead to the so ...

    Pre–check
    1. Srs warning light check Turn the ignition switch to the on position and check that the srs warning light lights up. check that the srs warning light goes out after approx. 6 Seconds. Hint: when the ignition switch is at on and the srs warning light remains on or flashes, the ...

    Inspection procedure
    1 Prepare for inspection Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  remove the horn button assy .  disconnect the connector of the instrument panel passenger airbag assy .  disconnect the connector of the front sea ...