Toyota Corolla (E170) 2014–2019 Owners Manual / Maintenance and care / Maintenance / Emission inspection and maintenance (I/M) programs

Toyota Corolla (E170): Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system.

If the malfunction indicator lamp comes on

The OBD system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the I/M test and may need to be repaired. Contact your Toyota dealer to service the vehicle.

Your vehicle may not pass the I/M test in the following situations:

● When the battery is disconnected or discharged Readiness codes that are set during ordinary driving are erased.

Also, depending on your driving habits, the readiness codes may not be completely set.

● When the fuel tank cap is loose The malfunction indicator lamp comes on indicating a temporary malfunction and your vehicle may not pass the I/M test.

When the malfunction indicator lamp still remains on after several driving trips

The error code in the OBD system will not be cleared unless the vehicle is driven 40 or more times.

If your vehicle does not pass the I/M test

Contact your Toyota dealer to prepare the vehicle for re-testing.

    Share this page:

    Other materials:

    Automatic transaxle fluid (atm)
    On–vehicle inspection 1. Check the fluid level Hint: drive the vehicle so that the engine and transaxle are at normal operating temperature. Fluid temperature: 70 – 80 °c (158 – 176 °f)  park the vehicle on a level surface and set the parking brake.  with the engin ...

    Overhaul
    1. Precaution 2. Disconnect battery negative terminal 3. Inspect place front wheels facing straight ahead 4. Remove horn button assy Notice: if the airbag connector is disconnected with the ignition switch being at on, dtcs will be recorded.  using a torx socket wrench, loosen the ...

    Checking and replacing fuses
    If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Checking and replacing fuses 1. Turn the engine switch off. 2. Open the fuse box cover. Engine compartment: type A fuse box Push the tabs in and lift the lid off. E ...