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:

    On–vehicle inspection
    1. Inspect refrigerant pressure with manifold gauge set  this is a method in witch the trouble is located by using a manifold gauge set. Read the manifold gauge pressure when the these conditions are established. Test conditions: temperature at the air inlet with the switch set ...

    Inspection procedure
    1 Check low pitched horn assy Connect the positive (+) lead from the battery to the terminal and negative (–) lead to the horn body, and check that the horn blows. 2 Check relay (marking: horn) Remove the relay from the engine room j/b.  check the horn relay conti ...

    Manual transaxle oil
    On–vehicle inspection 1. Inspect transaxle oil Stop the vehicle on the level place.  remove the transmission filler plug and gasket.  check that the oil surface is within 5 mm (0.20 In.) From the lowest position of the inner surface of the transmission filler plug openin ...