Toyota Tacoma manuals

Toyota Corolla Repair Manual: Inspection procedure

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 horn button assy and the airbag sensor assy center.
  3.  for the black connector (on the spiral cable subassy side) between the horn button assy and the spiral cable subassy, measure the resistance between d2+ and d2.

    Ok: resistance: below 1 Ω

2 Check air bag sensor assy center

2 Check air bag sensor assy center

Sst 0984318040

  1. Connect the connector to the airbag sensor assy center.
  2.  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.
  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 b1181/18 is not output.

Hint

: codes other than code b1181/18 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 b1181/18 is not output.

Hint

: codes other than code b1181/18 may be output at this time, but they are not relevant to this check.

Use simulation method to check

Use simulation method to check

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

  1. Disconnect the connector of the instrument panel wire.
  2.  for the connector (on the spiral cable subassy side) between the airbag sensor assy center and the spiral cable subassy, measure the resistance between d2+ and d2.

    Ok: resistance: below 1 w

5 Check spiral cable subassy

5 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 resistance between d2+ and d2.

    Ok: resistance: below 1 Ω

Use simulation method to check

Use simulation method to check

Circuit description
Circuit description Wiring diagram ...

Short in d squib (2nd step) circuit (to ground)
Dtc b1182/19 short in d squib (2nd step) circuit (to ground) ...

Other materials:

Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies the sensor with a regulated 5 v referencevoltage and the sensor returns a signal voltage between ...

Circuit description
Refer to dtc p0120 Dtc no. Dtc detection condition Trouble area P0121 The following condition is met 4 times. After the vehicle speed has exceeded 19 mph (30 km/h) once, the throttle position sensor output value is out of normal range when the throttle ...

Calculation formula for your vehicle
1 Cargo capacity 2 Total load capacity (vehicle capacity weight) When 2 people with the combined weight of A lb. (kg) are riding in your vehicle, which has a total load capacity (vehicle capacity weight) of B lb. (kg), the available amount of cargo and luggage load capacity will be C lb. (kg ...

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