Toyota Corolla (E120): Inspection procedure

1 Check connector

  1. Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  2.  check the connection of the combination meter connector and the airbag sensor assy center connectors.

    Ok: the connectors are connected.

2 Check combination meter assy

2 Check combination meter assy

  1. Disconnect the connector from the combination meter.
  2.  connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.

  1. Turn the ignition switch to on, and wait at least for 6 seconds.
  2.  measure the voltage between sw and body ground.

    Ok: voltage: above 8 v

3 Check instrument panel wire(airbag sensor assy

3 Check instrument panel wire(airbag sensor assy center–combination meter assy)

  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 from the airbag sensor assy center.
  4.  measure the resistance between la and body ground.

    Ok: resistance: 1mΩ or higher

Replace air bag sensor assy center

Replace air bag sensor assy center

4 Check instrument panel wire(airbag sensor assy center–combination meter assy)

  1. For the connector (on the airbag sensor assy center side) between the combination meter and the airbag sensor assy center, measure the resistance between sw and la.

    Ok: resistance: below 1 Ω

Replace air bag sensor assy center

Replace air bag sensor assy center

    Share this page:

    Other materials:

    Inspection procedure
    Hint: hand–held tester only: narrowing down the trouble area is possible by performing ”a/f control” active test (heated oxygen sensor or other trouble areas can be distinguished). Perform active test using hand–held tester (a/f control). Perform active test using the hand–held ...

    Inspection procedure


    Hand–held tester: 1 Check operation of stop light Check if the stop lights go on and off normally when the brake pedal is depressed and released. 2 Inspect stop light switch assy Check the resistance between the terminals when the switch is turned on and off. Standard: ...

    Starting & charging
    Preparation Sst Recomended tools Equipment ...