Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit inspection

1 Check d squib circuit(airbag sensor assy center horn button assy)

  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 horn button assy.
  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 black connector (on the spiral cable subassy side) between the horn button assy and the spiral cable subassy, measure the voltage between d2+ and body ground.

    Ok: voltage: below 1 v

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 d2+ and d2 of the black connector (on the spiral cable subassy side) between the horn button assy and the spiral cable subassy.
  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 b1183/22 is not output.

Hint

: codes other than code b1183/22 may be output at this time, but they are not relevant to this check.

3 Check d squib

3 Check d squib

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 horn button assy connectors.
  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 b1183/22 is not output.

Hint

: codes other than code b1183/22 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

5 Check instrument panel wire(airbag sensor assy center spiral cable subassy)

  1. Turn the ignition switch to lock.
  2.  disconnect the connector of the instrument panel wire.
  3.  turn the ignition switch to on.
  4. ) for the connector (on the spiral cable subassy side) between the horn button assy and the spiral cable subassy, measure the voltage between d2+ and body ground.

    Ok: voltage: below 1 v

6 Check spiral cable subassy

6 Check spiral cable subassy

  1. For the black connector (on the spiral cable subassy side) between the horn button assy and the spiral cable subassy, measure the voltage between d2+ and body ground.

    Ok: voltage: below 1 v

7 Use simulation method to check

7 Use simulation method to check

Replace all srs components including the wire harness

Replace all srs components including the wire harness

Circuit description
The d squib (2nd step) circuit consists of the airbag sensor assy center, spiral cable subassy and horn button assy. It causes the srs to deploy when the srs deployment conditions are satisfied ...

Short in p squib (2nd step) circuit
Dtc b1185/57 short in p squib (2nd step) circuit ...

Other materials:

Rear axle beam assy
Replacement Hint: components:  1. Remove rear wheel  remove the rh and lh rear wheels. 2. Remove rear brake drum subassy 3. Separate skid control sensor wire Disconnect the skid control sensor connector.  remove the 2 bolts and separate the wire harness clamps. ...

Installing the spare tire
1 Remove any dirt or foreign matter from the wheel contact surface. If foreign matter is on the wheel contact surface, the wheel nuts may loosen while the vehicle is in motion, causing the tire to come off. 2 Install the tire and loosely tighten each wheel nut by hand by approximately the sa ...

Towing with a wheel-lift type truck
► From the front Release the parking brake. ► From the rear Use a towing dolly under the front wheels. Vehicles without a smart key system: When not using a towing dolly, turn the engine switch to the ACC position and shift the shift lever to N. Vehicles with a smart key sys ...

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