Toyota Corolla Quiz
Diagnostics

Inspection procedure

In this manual: Diagnostics
Introduction — 31Preparation — 32Service specifications — 19Diagnostics — 497Engine control system — 6Fuel — 13Emission control — 28Exhaust — 3Cooling — 13Lubrication — 7Ignition — 3Starting & charging — 13Front suspension — 12Rear suspension — 9Tire & wheel — 1Drive shaft / propeller shaft — 15Brake — 42Automatic transmission / trans — 47Clutch — 19Steering column — 9Power steering — 11Heater & air conditioner — 20Supplemental restraint system — 27Seat belt — 12Lighting — 18Wiper & washer — 9Audio & visual — 12Wiring — 1Communication system — 1Windshield/windowglass/mirror — 31Seat — 10Theft deterrent & door lock — 10Sliding roof/convertible — 8Engine hood/door — 12Exterior/interior trim — 20Vehicle control system — 1Cruise control — 5Maintenance — 8
10steps
~60min
3/5difficulty
Done 0 of 10
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
Toyota Corolla. 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.
    Toyota Corolla. Check combination meter assy
  3. Turn the ignition switch to on, and wait at least for 6 seconds.
  4. 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)
Toyota Corolla. Check instrument panel wire
  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)
Toyota Corolla. Check instrument panel wire
  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

Test yourself

A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.