Toyota Tacoma manuals

Toyota Corolla Repair Manual: Inspection procedure

1 Check front airbag sensor (lh) circuit (to b+)(airbag sensor assy center – airbag sensor front 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 airbag sensor front 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 airbag sensor assy center side) between the airbag sensor front lh and the airbag sensor assy center, measure the voltage between body ground and each of +sl and –sl.

    Ok: voltage: below 1 v

2 Check front airbag sensor(lh) circuit(to ground)(airbag sensor

2 Check front airbag sensor(lh) circuit(to ground)(airbag sensor assy center – airbag sensor front lh)

  1. Turn the ignition switch to lock.
  2.  disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  3.  for the connector (on the airbag sensor assy center side) between the airbag sensor front lh and the airbag sensor assy center, measure the resistance between body ground and each of +sl and –sl.

    Ok: resistance: 1 mΩ or higher

3 Check front airbag sensor (lh) circuit(open)(airbag sensor assy

3 Check front airbag sensor (lh) circuit(open)(airbag sensor assy center – airbag sensor front lh)

  1. Using a service wire, connect +sl and –sl of the connector (on the airbag sensor front lh side) between the airbag sensor assy center and the airbag sensor front lh.
  2.  for the connector (on the airbag sensor assy center side) between the airbag sensor front lh and the airbag sensor assy center, measure the resistance between +sl and –sl.

    Ok: resistance: below 1 Ω

4 Inspect air bag sensor front lh

4 Inspect air bag sensor front lh

  1. For the connector of the airbag sensor front lh, measure the resistance between +sl and –sl.

    Ok: resistance: 820 Ω

5 Check air bag sensor assy center

5 Check air bag sensor assy center

Sst 09843–18040

  1. Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  2.  connect the airbag sensor front lh connector and airbag sensor assy center connector.
  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 b1158/b1159/16 is not output.

Hint

: codes other than code b1158/b1159/16 may be output at this time, but they are not relevant to this check.

Use simulation method to check

Use simulation method to check

6 Check engine room main wire harness (to b+)(conector – airbag sensor front lh)

  1. Turn the ignition switch to lock.
  2.  disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  3.  disconnect the connector between the engine room main wire and the instrument panel wire.
  4.  connect the negative (–) terminal to the battery, and wait at least for 2 seconds.
  5.  turn the ignition switch to on.
  6.  for the engine room main wire connector (on the airbag sensor assy center side) between the airbag sensor assy center and the airbag sensor front lh, measure the voltage between body ground and each of +sl and –sl.

    Ok: voltage: below 1 v

Repair or replace instrument panel wire

Repair or replace instrument panel wire

7 Check engine room main wire harness (to ground)(connector – airbag sensor front lh)

  1. Disconnect the connectors between the engine room main wire and the instrument panel wire.
  2.  for the engine room main wire connector (on the airbag sensor assy center side) between the airbag sensor assy center and the airbag sensor front lh, measure the resistance between body ground and each of +sl and –sl.

    Ok: resistance: 1 mw or higher

Repair or replace instrument panel wire

Repair or replace instrument panel wire

8 Check engine room main wire harness(open)(connector – airbag sensor front lh)

  1. Disconnect the connectors between the engine room main wire and the instrument panel wire.
  2.  using a service wire, connect +sl and –sl of the engine room main wire connector (on the airbag sensor front lh side) between the airbag sensor assy center and the airbag sensor front lh.
  3.  for the engine room main wire connector (on the airbag sensor assy center side) between the airbag sensor assy center and the airbag sensor front lh, measure the resistance between +sl and –sl.

    Ok: resistance: below 1 Ω

Repair or replace instrument panel wire

Repair or replace instrument panel wire

Circuit description
The airbag sensor front lh circuit consists of the airbag sensor assy center and airbag sensor front lh. Dtc b1158/b1159/16 is recorded when malfunction is detected in the airbag sensor front l ...

Short in d squib (2nd step) circuit
Dtc b1180/17 short in d squib (2nd step) circuit ...

Other materials:

If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes stuck in mud, dirt or snow: 1 Stop the engine. Set the parking brake and shift the shift lever to P (automatic transmission or continuously variable transmission) or N (manual transmission). 2 Remove the mud, snow or s ...

Heater control & accessory assy
Replacement 1. Remove console panel upper 2. Remove instrument cluster finish panel 3. Remove heater control & accessory assy Release the 2 fitting claws and pull out the heater control & accessory assy. Using a screwdriver, open the claw of the cable clamp and dis ...

Basic inspection
Resistance measuring condition of electronic parts  unless stated, all resistance is measured at an ambient temperature of 20 c (68 °F). As the resistance may be outside the specifications if measured at high temperatures immediately after the vehicle has been running, measur ...

© 2011-2024 Copyright www.tcorolla.net