Toyota Corolla (E120): Inspection procedure

1 Check p/t squib(lh) circuit(airbag sensor assy center – front seat outer belt assy lh)

  1. Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  2.  disconnect the connectors between the airbag sensor assy center and the seat belt pretensioner (lh).
  3.  for the connector (on the seat belt pretensioner side) between the airbag sensor assy center and the seat belt pretensioner (lh), measure the resistance between pl+ and body ground.

    Ok: resistance: 1 mΩ or higher

2 Check air bag sensor assy center

2 Check air bag sensor assy center

Sst 09843–18040

  1. Connect the connector to the airbag sensor assy center.
  2.  using a service wire, connect pl+ and pl– of the connector (on the seat belt pretensioner side) between the airbag sensor assy center and the seat belt pretensioner (lh).
  3.  connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
  4. turn the ignition switch to on, and wait at least for 20 seconds.
  5.  clear the dtc stored in memory .
  6.  turn the ignition switch to lock, and wait at least for 20 seconds.
  7.  turn the ignition switch to on, and wait at least for 20 seconds.
  8.  check the dtc .

    Ok: dtc b0137/71 is not output.

Hint

: codes other than code b0137/71 may be output at this time, but they are not relevant to this check.

3 Check p/t squib (lh)

3 Check p/t squib (lh)

Sst 09843–18040

  1. Turn the ignition switch to lock.
  2.  disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  3.  connect the seat belt pretensioner (lh) connector.
  4.  connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
  5.  turn the ignition switch to on, and wait at least for 20 seconds.
  6.  clear the dtc stored in memory .
  7.  turn the ignition switch to lock, and wait at least for 20 seconds.
  8. turn the ignition switch to on, and wait at least for 20 seconds.
  9.  check the dtc .

    Ok: dtc b0137/71 is not output.

Hint

: codes other than code b0137/71 may be output at this time, but they are not relevant to this check.

4 Use simulation method to check

4 Use simulation method to check

Replace all srs components including the wire harness

Replace all srs components including the wire harness

    Share this page:

    Other materials:

    If your vehicle overheats
    The following may indicate that your vehicle is overheating. The engine coolant temperature gauge is in the red zone or a loss of engine power is experienced. (For example, the vehicle speed does not increase.) "Engine Coolant Temp High Stop in a Safe Place See Owner's Manual" is shown on ...

    Cleaning and protecting the vehicle exterior
    Perform cleaning in a manner appropriate to each component and its material. Cleaning instructions Working from top to bottom, liberally apply water to the vehicle body, wheel wells and underside of the vehicle to remove any dirt and dust. Wash the vehicle body using a sponge or soft cloth, ...

    On–vehicle inspection
    1. Inspect for electrical door lock operation Hint: w/ power window: the door control switch is built in the master switch in the driver’s door and also in the passenger’s door. W/o power window: the door control switch is in the driver’s door and also in the passenger’s d ...