Toyota Tacoma manuals

Toyota Corolla Repair Manual: 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.  connect the negative () terminal cable to the battery, and wait at least for 2 seconds.
  4.  turn the ignition switch to on.
  5.  for the connector (on the seat belt pretensioner side) between the airbag sensor assy center and the seat belt pretensioner (lh), measure the voltage between pl+ and body ground.

    Ok: voltage: below 1v

2 Check air bag sensor assy center

2 Check air bag sensor assy center

Sst 0984318040

  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 connector to the airbag sensor assy center.
  4.  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).
  5.  connect the negative () terminal cable to the battery, and wait at least for 2 seconds.
  6.  turn the ignition switch to on, and wait at least for 20 seconds.
  7. clear the dtc stored in memory .
  8.  turn the ignition switch to lock, and wait at least for 20 seconds.
  9.  turn the ignition switch to on, and wait at least for 20 seconds.
  10.  check the dtc .

    Ok: dtc b0138/72 is not output.

Hint

: codes other than code b0138/72 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 0984318040

  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 b0138/72 is not output.

Hint

: codes other than code b0138/72 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

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 ...

Airbag sensor assy malfunction
Dtc b1100/31 airbag sensor assy malfunction ...

Other materials:

Monitor description
The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...

Fuel
Preparation Sst Recomended tools Ssm Equipment ...

Combination meter assy
Overhaul Hint: components: 1. Remove meter hood subassy 2. Remove combination meter assy Remove the screw.  disengage the 2 clips as shown in the illustration.  disconnect the connector, then remove the combination meter. 3. Remove combination meter glass Dise ...

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