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
11steps
~66min
3/5difficulty
Done 0 of 11
1 Check source voltage
  1. Measure the voltage of the battery.

    Ok: voltage: 10 – 14 v

2 Check air bag sensor assy center
2 Check air bag sensor assy center
  1. Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
  2. disconnect the connectors from the airbag sensor assy center.
  3. connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
  4. turn the ignition switch to on.
  5. check srs warning light light up in the combination meter assy.

    Ok: not srs warning light light up

    3 Check wire harness(combination meter assy – airbag sensor assy
3 Check wire harness(combination meter assy – airbag sensor assy center)
Toyota Corolla. Check wire harness
  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 combination meter.
    Toyota Corolla. Check wire harness
  4. Connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
  5. turn the ignition switch to on.
  6. for the connector (on the airbag sensor assy center side) between the airbag sensor assy center and the combination meter, measure the voltage between la and body ground.

    Ok: voltage: below 1 v

    Repair or replace combination meter assy or wire harness between
Repair or replace combination meter assy or wire harness between combination meter assy and battery

Test yourself

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