Toyota Corolla (E120): Circuit descriptionCircuit 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 b0138/72 is recorded when a b+ short is detected in the p/t squib (lh) circuit.

Wiring diagram

Wiring diagram

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    On–vehicle inspection
    1. Inspect brake booster Airtightness check.  Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly. Hint: if the pedal goes down farthest at the 1st time, but gradually rises after the 2nd or 3rd time, the booster is airtight. ...

    Air conditioning filter
    The air conditioning filter must be changed regularly to maintain air conditioning efficiency. Removing the air conditioning filter 1. Turn the engine switch off. 2. Open the glove box. Slide off the damper (if equipped). 3. Push in the glove box on the vehicle's outer side to disconnect the claws ...

    Disposal
    Hint: when scrapping vehicle equipped with an srs or disposing of a instrument panel passenger airbag assy, always first deploy the airbag in accordance with the procedure described below. If any abnormality occurs with the airbag deployment, contact the service dept. Of toyota motor sales, ...